Held in 2025
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Take this paper as a timed mock test. Review your answers after you submit.
Read the paper at your pace. Open an explanation when you need it.
A can complete a work in 14 hours, while B can do the same work in 21 hours. A started working alone. After how many hours should B join A so that the total work is completed in 10 hours?
3
4.5
3.5
4
Correct answer
3
Why is regular maintenance of HVAC systems considered a medium ECO?
It decreases the system's energy consumption.
It prevents overheating of the system.
It increases the cost of energy.
It speeds up system breakdowns.
Correct answer
It decreases the system's energy consumption.
The speed of a train is 144 km/hr. The distance covered by the train in 12 seconds is:
480 m
103 m
518 m
78 m
Correct answer
480 m
In a certain code language, 'GOES' is coded as '8624' and 'SNYC' is coded as '3817'.
What is the code for 'S' in the given code language?
8
4
3
2
Correct answer
8
In a certain code language, 'BOAT' is coded as '8654' and 'AIDS' is coded as '3517'.
What is the code for 'A' in the given code language?
6
5
3
8
Correct answer
6
The weights (in kg) of 20 students of a class have been recorded as 35, 42, 56, 44, 55, 44, 36, 44, 49, 48, 55, 35, 44, 47, 49, 48, 56, 44, 37 and 35. The modal weight (in kg) of the class is:
47
37
44
45
Correct answer
47
Pipes A and B can fill a rectangular tank in 40 minutes and 120 minutes, respectively. Pipe C can empty the completely filled same tank in 240 minutes. If pipes A, B and C are opened at the same time, then how many minutes will it take to fill the tank?
\(34\frac{2}{8}\)
\(34\frac{2}{7}\)
\(32\frac{2}{7}\)
\(34\frac{3}{7}\)
Correct answer
\(34\frac{2}{8}\)
Which of the following actions involves scientific work?
Spending time conversing with friends
Climbing up the stairs
Watching a film
Holding a large load on one's head while standing motionless
Correct answer
Spending time conversing with friends
How is a voltmeter connected in a circuit to measure potential difference?
In parallel across the points where potential difference is to be measured
In series with the circuit
Neither in series nor in parallel
Directly to the power source only
Correct answer
In parallel across the points where potential difference is to be measured
Find the minimum value of 2x 2 - 5x - 3 and also find x.
-6.125 and x = 0.25
6.125 and x = 1.25
6.125 and x = 1.2
Correct answer
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
CGXF
UYPW
QULS
JNEL
Correct answer
CGXF
Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?
AD8, FI16, KN24, ?
OS32
OR35
PS35
PS32
Correct answer
OS32
Select the pair which follows the same pattern as that followed by the two sets of pairs given below. Both pairs follow the same pattern.
ARF: YTH
WVJ: UXL
MEL: HZN
SZN: QBP
QEB: NBD
KXF: HZH
Correct answer
MEL: HZN
By how much is 60% of 50 greater than \(\frac{4}{5}\)of 35?
2
3
4
1
Correct answer
2
Which of the following is NOT an SI unit?
Hour
Metre
Mole
Kilogram
Correct answer
Hour
The speed of a bus is 6 metres/second. The distance (in kilometres) travelled by the bus in 8 hours and 20 minutes is:
185
180
184
175
Correct answer
185
Three partners, A, B and C, shared the profit in a business in the proportion of 11: 13: 16. They invested their capitals for 7 months, 5 months and 12 months, respectively. What was the ratio of their capitals?
165 :273 :140
96: 135: 101
3:5:8
21:35:44
Correct answer
165 :273 :140
T-Square is used to _______in engineering drawings.
support the drawing paper/tracing paper for making drawings
draw curved lines on drawing sheets
draw horizontal lines, parallel lines and to guide/hold the setsquares
transfer dimensions and dividing lines into a number of equal parts
Correct answer
support the drawing paper/tracing paper for making drawings
Which of the following features is unique to Telegram compared to WhatsApp and Facebook Messenger?
Voice and video calling capabilities
End-to-end encryption for all messages
Ability to create channels for broadcasting messages to large audiences
Integration with Facebook for seamless sharing
Correct answer
Voice and video calling capabilities
Calculate the resistance of the bulb filament if it draws 200 mA current from 220 V source.
0Ω
1100 Ω
220 Ω
44 Ω
Correct answer
0Ω
Which of the following processes causes accumulation of heavy metals such as lead and mercury in soil?
Ozone layer depletion
Improper disposal of industrial wastes
Water evaporation
Natural soil formation
Correct answer
Ozone layer depletion
What should come in place of the question mark (?) in the given series?
WU5, SQ7, NL11, ?
GE17
HF13
GE13
HE15
Correct answer
GE17
Which of the following statements is correct?
All metals are poor conductors of heat.
Plastic and wood allow heat to pass through them easily.
Dry air is a good conductor of heat.
Copper and aluminium are good conductors of heat
Correct answer
All metals are poor conductors of heat.
If 24 joules of work is done in moving a charge of 2 coulombs across two points, then what will be the correct voltage across these two points?
2 V
12 V
24 V
48 V
Correct answer
2 V
The two sides CB and BA of triangle ABC are produced to CE and BD, respectively, in such a way that angle DAC = 110° ; and angle ABE = 130° . Which of the following options is true?
AC <AB < BC
BC <AC <AB
AB <AC <BC
BC <AB < AC
Correct answer
AC <AB < BC
The marked price of an item is ₹27,500. The shopkeeper gave two successive discounts: the first discount was 20%, and the second was 30% of the first discount rate. What is the selling price of the item (in rupees)?
1,26,080
20,860
20,086
20,680
Correct answer
1,26,080
Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of:: is the same as that on the right side of ::?
#: KHM:: OLQ: %
#LIN, % = NKO
#LIN, % = NLP
#LIN, %= NKP
#LIM, % = NKP
Correct answer
#LIN, % = NKO
Which of the following statements is INCORRECT?
In solids, heat transfer is typically carried out through conduction.
Burning of feet on hot sand is an example of heat transfer by conduction.
Conduction is the process of heat transfer that does not require any medium to transfer heat
Conduction is the process of heat transfer from hotter body to colder body.
Correct answer
In solids, heat transfer is typically carried out through conduction.
A man rides a bicycle from Point A to Point B in 10 minutes and comes back to Point A along the same path in 10 minutes. If the distance between Points A and B is 1 km, calculate his average velocity?
3.3 m/s
1.6 m/s
0 m/s
0.1 m/s
Correct answer
3.3 m/s
What is the dimensional equation of mass density (p)?
[ML-3T2]
[M0 L³ T0]
[ML-3T0]
[M L-2 T0]
Correct answer
[ML-3T2]
What is the kinetic energy possessed by an object having mass 25 kg and moving with a uniform velocity of 2 m s-¹?
80 J
50 J
120 J
100 J
Correct answer
80 J
What is the value of 100 g in Sl units?
1 kg
0.1 kg
100 kg
10 kg
Correct answer
1 kg
A mass m is moving with a velocity v and its kinetic energy is K. What will be the new kinetic energy if the velocity is doubled?
2K
K
4 K
K/2
Correct answer
2K
Which of the following is a main greenhouse gas that is responsible for global warming?
Nitrogen
Helium
Carbon Dioxide
Oxygen
Correct answer
Nitrogen
Which of the following tools is commonly used to support the 'Standardize' step in the 5S methodology?
Labels and signs
Cleaning supplies
Floor markings
Job cycle charts
Correct answer
Labels and signs
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
GMKT
EKJR
VBZI
IOMV
Correct answer
GMKT
What should come in place of the question mark (?) in the given alpha-numeric series?
Y13, F11, L9, Q7, U5, X3, ?
22
A1
Z1
Y1
Correct answer
22
Given below are two sets of numbers. Both the sets are formed using the same mathematical equations or follow a common pattern. Which of the given options follows the same set of mathematical equations or patterns as the sets given in the question?
1333-1730-2199-2746-3377
218-345-514-731-1002
123 - 146 - 171 - 198 - 227
38 - 51 - 66 - 83 - 102
3-10-29-66-127
3 - 6 - 11 - 18 - 27
Correct answer
123 - 146 - 171 - 198 - 227
Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number results in the second number. Similarly, certain mathematical operation(s) on the second number results in the third number and so on. Which of the given options follows the same set of operations as in the given sets?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13-Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
988-494-444-534; 894-447-397-487
138 - 69 - 14 - 98
226 - 113 - 144 - 268
586 - 293 - 244 - 328
682-341-291-381
Correct answer
138 - 69 - 14 - 98
What is the first step to take in case of a power failure in a workshop?
Continue working as usual
Check if emergency lighting and backup power are functional
Panic and leave the premises immediately
Ignore the situation and wait for power to return
Correct answer
Continue working as usual
Which of the following is an ethical concern related to Information Technology?
Enhancement of communication channels
Privacy violations and data breaches
Reduction in administrative costs
Increased accessibility to educational resources
Correct answer
Enhancement of communication channels
Which term is used to describe the closeness of the measured value to the standard or true value?
Mean
Precision
Approximate
Accuracy
Correct answer
Mean
Which of the following is NOT correct about Joule's law of heating?
Heat produced in a resistor is directly proportional to the square of the current for a given resistance.
Heat produced in a resistor is directly proportional to the time for which the current flows through the resistor.
Heat produced in a resistor is directly proportional to the resistance for a given current.
Heat produced in a resistor is inversely proportional to the square of the current for a given resistance.
Correct answer
Heat produced in a resistor is directly proportional to the square of the current for a given resistance.
Which of the following terms is used to describe the pollutants that originate from identifiable sources, such as factories or vehicles?
Non-point Source Pollution
Random Pollution
Point Source Pollution
Radicle Pollution
Correct answer
Non-point Source Pollution
How does installing energy-efficient windows in an old building affect energy consumption?
It has no effect on fuel consumption.
It causes indoor temperatures to rise.
It reduces heating and cooling costs in the building.
It increases the need for artificial lighting.
Correct answer
It has no effect on fuel consumption.
Which of the following is generally the temperature range in a laboratory thermometer?
-10°C to 110°C
-10°C to 150°C
-100°C to 130°C
35°C to 42°C
Correct answer
-10°C to 110°C
A refrigerator seller offers a discount of 10% on its listed price of ₹57,500 and still earns a profit of 15%. The cost price of the refrigerator is:
₹45,000
₹42,000
₹40,000
₹48,000
Correct answer
₹45,000
A person saves 50% of his income. If his expenditure is 440, then his income (in ₹) is:
600
880
920
560
Correct answer
600
Which of the following is the correct statement of Ohm's Law?
If the potential difference across the two ends of a conductor is 1 V and the current through it is 1A, then the resistance of the conductor is 20.
The potential difference across the ends of a conductor is inversely proportional to the current flowing through it.
The potential difference across the ends of a conductor is directly proportional to the current flowing through it.
Current through a resistor is directly proportional to its resistance.
Correct answer
If the potential difference across the two ends of a conductor is 1 V and the current through it is 1A, then the resistance of the conductor is 20.
A shopkeeper sells sugar at 30 per kg, which he has bought at 24 per kg. Being dishonest, he also gives only y gm of sugar instead of 1000 gm that is mentioned on the weight. In this way, the shopkeeper manages to make an overall profit of 66\(\frac{2}{3}\)%. What is the value of y?
600
720
800
750
Correct answer
600
What is the SI unit for solid angle?
Metre
Candela
Radian
Steradian
Correct answer
Metre
Eight people are sitting in two parallel rows containing 4 people each in such a way that there is equal distance between adjacent persons. In row 1-A, B, C and D are seated and all of them are facing south. In row 2-P, Q, R and S are seated and all of them are facing north. Thus each person faces another person from the other row. No one sits to the left of B. R faces the person who sits second to the right of D. C faces the person who is the immediate neighbour of Q and R, B does not face S. Who amongst the following faces P?
D
A
B
C
Correct answer
D
Study the given graph and answer the question that follows.
What is the average profit percentage of the given years?
44%
43.4%
44.1%
45%
Correct answer
44%
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.
Statements:
I. All books are pencils.
II. All pencils are cardboards.
III. All cardboards are notebooks.
Conclusions:
I. Some notebooks are pencils.
II. Some cardboards are books.
III. Some notebooks are books.
Only conclusions I and II follow.
All conclusions I, II and III follow
Only conclusions I and III follow.
Only conclusions II and III follow.
Correct answer
Only conclusions I and II follow.
What type of view is represented of the given machine component?
Oblique view
Orthographic view
Perspective view
Isometric view
Correct answer
Oblique view
In order to resolve disputes arising from cyber crime, such as tampering with computer source documents, hacking the computer system, using password of another person and publishing sensitive personal data of others without their consent, a forum has been established by the Central Government (India) in accordance with the provisions contained under Section 48(1) of the Information Technology Act, 2000. What is the name of that forum?
Cyber Appellate Tribunal
National Cybercrime Reporting Station
Cybercrime Reporting Tribunal
Internet Crime Complaint Center
Correct answer
Cyber Appellate Tribunal
When reporting a fire in an emergency, what is the most critical information to provide to emergency services?
The weather conditions at the time of the fire
How the fire started and if someone is injured or missing
The likely cause of the fire and the building owner's name
The colour of the smoke and the direction it is moving
Correct answer
The weather conditions at the time of the fire
Why does a combination of two thin blankets keep you warmer in the winter than a single thick blanket?
Two thin blankets allow more heat to escape, keeping you warmer.
Two blankets create an additional insulating layer of air, reducing heat loss
Two thin blankets generate more heat than one thick blanket.
Two thin blankets absorb more heat from the surroundings than one thick blanket.
Correct answer
Two thin blankets allow more heat to escape, keeping you warmer.
What is necessary for a circuit to have electric current flowing through it?
A closed conducting path with a voltage source
Only wire
Only switch
Only bulb
Correct answer
A closed conducting path with a voltage source
Which of the following is NOT correct?
An object moving with a constant velocity represents uniform motion.
The motion of satellite around Earth in a circular orbit is uniform circular motion.
A person jogging in the park is not an example of uniform circular motion.
The distance-time graph of an object moving with uniform speed is not a straight line:
Correct answer
An object moving with a constant velocity represents uniform motion.
Among three partners A, B and C in a business. The capital of B is equal to half the difference between thrice the capital of C and twice the capital of A. If at the end of the year, they received a profit of 25,415, what is the share of C (in)?
9,166
8,666
11,666
10,166
Correct answer
9,166
E, F, G, H, P, Q, and R, are sitting around a circular table facing the centre. F sits third to the left of H. Only two people sit between H and G when counted from the right of H. Q is an immediate neighbor of G. P is NOT an immediate neighbour of H. E is an Immediate neighbour of Q. Who sits second to the left of E?
H
R
G
P
Correct answer
H
The cost of painting a spherical ball at the rate of ₹2.50 per cm² is 13,860. What is the diameter of the ball? (Use π = 22/7)
40 cm
48 cm
21 cm
42 cm
Correct answer
40 cm
In an electrical circuit, 'n' number of 10 Ohm resistors are connected in parallel. When one of the resistors is eliminated, the overall resistance of the circuit is __________.
\(\frac{1}{n^2}\)
Zero
\(\frac{1}{n}\)
\(\frac{1}{(n-1)}\)
Correct answer
\(\frac{1}{n^2}\)
What is the ratio of areas between two consecutive format sheet sizes created by halving the length or doubling the width?
2:1
1:4
1:2
4:1
Correct answer
2:1
If 'A' stands for '÷', 'B' stands for 'x', 'C' stands for '+' and 'D' stands for '-', then what will come in place of the question mark (?) in the following equation?
47 D 25 A 5C2B9=?
62
60
58
56
Correct answer
62
What is the primary purpose of netiquette in online communication?
To ensure polite and respectful interactions
To enhance internet connection speed
To improve typing speed
To increase the number of followers on social media
Correct answer
To ensure polite and respectful interactions
The thickness of a thread is measured by a student using a microscope of magnification 100. After making 30 observations, he finds the average width of the thread is 5.7 mm. What is the estimated thickness of the thread?
171 mm
0.057 mm
0.57 mm
0.09 mm
Correct answer
171 mm
The interest of (10r)2 in r time at rate \(\frac{r}{10}\)% is __________.
\(\frac{r^4}{10}\)
\(10r^4\)
\(\frac{r^4}{20}\)
\(\frac{r^4}{5}\)
Correct answer
\(\frac{r^4}{10}\)
A force of 6 N is exerted on an object, resulting in its displacement of 2 m in the direction of the force. If the force is constant during the displacement, what is the work done in this case?
25 J
12 J
3 J
10 J
Correct answer
25 J
If 21.6: x:: x: 29.4, and x > 0 then find the value of x.
23.9
23.3
25.4
25.2
Correct answer
23.9
Which of the following statements is NOT true?
Clinical thermometer should not be used to measure the temperature of boiling water.
Clinical and laboratory thermometers are the same.
The range of clinical thermometer is 35 to 42°C.
Laboratory thermometer cannot be used to measure body temperature.
Correct answer
Clinical thermometer should not be used to measure the temperature of boiling water.
Which of the following options is NOT a necessary characteristic of a kite?
At least one diagonal is bisected by the other diagonal.
The diagonals are perpendicular to each other.
The pairs of opposite angles are bisected by the corresponding diagonals.
At least one pair of opposite angles is congruent.
Correct answer
At least one diagonal is bisected by the other diagonal.
A porter lifts a 10 kg luggage from the ground and places it on his head, 2.5 m above the ground. Calculate the work done by him on the luggage. (Take g = 10m s- 2)
200 J
100 J
250 J
250 N
Correct answer
200 J
What should come in place of the question mark (?) in the given series?
179 171 163? 147 139
155
157
151
153
Correct answer
155
If x + y + z = 0 then find the value of \(\frac{x^2}{2yz} + \frac{y^2}{2xz} + \frac{z^2}{2xy}\)
\(\frac{2}{5}\)
\(\frac{3}{2}\)
\(\frac{3}{5}\)
\(\frac{2}{3}\)
Correct answer
\(\frac{2}{5}\)
In a certain code language, 'WIDE' is coded as '8694' and 'INKS' is coded as '3917', 7 What is the code for 'I' in the given code language?
8
3
7
9
Correct answer
8
A shopkeeper allows a discount of 18% on the marked price of an article and sells it for 2,870. Find the marked price of the article.
₹3,200
₹3,350
₹3,460
₹3,500
Correct answer
₹3,200
Which is the least number that must be subtracted from 5563 to make it exactly divisible by 18?
5
7
3
1
Correct answer
5
Study the given table carefully and answer the question that follows.
| Number of students who | ||
|---|---|---|
| Appeared for the exam | Passed the exam | |
| Class IX | 104 | 89 |
| Class X | 63 | 47 |
What was the total number of students who failed the exam from classes IX and X?
21
31
28
33
Correct answer
21
Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster pair)
QL-NT
BW-YE
KF-HM
DY-AG
Correct answer
QL-NT
Identify the orthographic symbol of a pipe fitting shown in the figure.
Tee
Cross
Union
Bend
Correct answer
Tee
Read the given statement and conclusions carefully. Assume that the information given in the statement is true, even if it appears to be at variance with commonly known facts, and decide which of the given conclusion(s) logically follow(s) from the statement.
Statement:
Over the past year, respiratory illnesses have increased significantly in city W. According to a public health study, this increase is linked to the increase in the number of cars, which raises air pollution levels on the roads.
Conclusions:
I. Increased vehicular traffic contributes to higher levels of air pollution.
II. Improving public transportation will reduce respiratory illnesses in city W.
Both conclusions I and II follow.
Neither conclusion I nor II follows.
Only conclusion II follows.
Only conclusion 1 follows.
Correct answer
Both conclusions I and II follow.
An object’s potential energy is equal to ________.
Change in velocity
Change in acceleration
Transfer of energy
Loss of energy
Correct answer
Change in velocity
Which of the following is the primary reason for adopting scientifically designed methods for safely disposing of toxic waste from automobiles?
To improve vehicle lifespan by minimising mechanical wear
To increase vehicle performance by optimising engine efficiency
To reduce fuel consumption and improve overall efficiency
To protect human health from harmful fumes and dust in the air
Correct answer
To improve vehicle lifespan by minimising mechanical wear
Given below are two sets of numbers. Both the sets are formed using the same mathematical equations or follow a common pattern. Which of the given options follows the same set of mathematical equations or patterns as the sets given in the question?
4-9-25-64-169; 16-49-121-324-841
64 - 100 - 144 - 196 - 256
16 - 36 - 64 - 100 - 144
4 - 16 - 36 - 64 - 100
64-225-529-1444-3721
Correct answer
64 - 100 - 144 - 196 - 256
Examine the symbolic representation of the hole and rivet provided below. According to BIS SP 46-2003, what does this symbol represent?
Drilled in the workshop
Fitted in the workshop
Drilled and fitted on-site
Drilled on-site
Correct answer
Drilled in the workshop
The ABC Association meeting will be held on the 2nd Sunday of next month. The registration fee is ₹50 per person. Participants will be provided meals at an additional cost of ₹24. If the number of people who paid for meals is 100 more than those who did not pay for meals, and the total amount collected from registrations and meals is ₹69,400, then how many people registered and how many meals should be prepared?
1100 and 1100
1100 and 600
1100 and 50
500 and 600
Correct answer
1100 and 1100
What should come in place of the question mark (?) in the given series?
62 73 87 104 124 ?
142
147
134
153
Correct answer
142
What should come in place of the question mark (?) in the given alpha-numeric series?
Q16, O14, M12, K10, I8, ?
G4
H6
G6
J6
Correct answer
G4
Which element is used in thermometers?
Bromine
Mercury
Gallium
Lead
Correct answer
Bromine
Two trains are running in opposite directions at the same speed. The length of each train is 175 m. If they cross each other in 7 s, the speed of each train is:
75 km/hr
90 km/hr
85 km/hr
80 km/hr
Correct answer
75 km/hr
If the length, the breadth, and the height of a cuboid are 5 m, 2 m, and 50 cm, respectively, then find its volume.
500 m³
20 m³
50m³
5 m³
Correct answer
500 m³
If an electric load draws a current of 2 A for 1 second, then calculate the number of electrons (with charge 1.6 × 10-19 °c ) passing through the load.
1.25x10 20
0.25 x 1019
0.25 x 1020
1.25 x1019
Correct answer
1.25x10 20
An electric heater of resistance 50 uses a current of 3 A. Determine the heat generated in 20 seconds.
5000 J
1000 J
9000 J
60 J
Correct answer
5000 J
Which of the following keyboard shortcuts on a Windows 10 home screen opens the item's properties?
Insert + Alt
F2 + Alt
Tab + Del
Alt + Enter
Correct answer
Insert + Alt
Which of the following is NOT a good heat conductor?
Fur
Copper
Iron
Aluminum
Correct answer
Fur
A, B, C, D, E, and F live on six different floors of the same building. The lowest floor of the building is numbered 1, the floor above it is numbered 2, and the top floor is numbered 6. E lives on an even-numbered floor but not on floor 4. The sum of the floor numbers where E and B live is 9. Only three people live between A and C. The sum of the floor numbers where F and C live is 3. What is the sum of the floor numbers where B and F live?
6
4
7
5
Correct answer
6
Under which Section of the Factories Act, of 1948, is the employment of women and children near cotton openers prohibited?
Section 25
Section 21
Section 27
Section 29
Correct answer
Section 25
Four chairs and a table set up cost 22,000. Determine the table's cost, if it is ₹2,000 more expensive than the chair.
₹6,000
₹5,000
₹4,000
₹6,500
Correct answer
₹6,000
Which property is the most important for materials used in automobile crash zones?
High brittleness
High hardness
High stiffness
High toughness
Correct answer
High brittleness
Study the given table carefully and answer the question that follows.
| Number of students who | ||
|---|---|---|
| Appeared for the exam | Passed the exam | |
| Class IX | 104 | 89 |
| Class X | 63 | 47 |
What was the total number of students who failed the exam from classes IX and X?
33
21
31
28
Correct answer
33
Observe the given roughness grade symbol and identify the corresponding roughness grade number whose corresponding roughness value is 0.2 µm.
N3
N1
N2
N4
Correct answer
N3
Match the following types of lines with their correct descriptions according to their orientation and characteristics.
| Description | Type of Line |
|---|---|
| A. A line that is neither parallel to a horizontal plane nor perpendicular to it. | 1. Horizontal Line |
| B. A line that is perpendicular to horizontal lines. | 2. Vertical Line |
| C. A line that changes its direction continuously. | 3. Inclined Line |
| D. A line that is parallel to a horizontal plane. | 4. Curved Line |
A-3, B-2, C-4, D-1
A-2, B-1, C-4, D-3
A-2, B-3, C-4, D-1
A-1, B-2, C-3, D-4
Correct answer
A-3, B-2, C-4, D-1
Wrong setting of machine, wrong use of a tool, defect in measuring tools, defective metal, and carelessness of the mechanic have no effect in the utility of the part. This is an advantage of______.
interchangeability
deviation
tolerance
limit
Correct answer
interchangeability
Which of the following best describes the application of Atomic Hydrogen Welding (AHW)?
It is used for all ferrous and non-ferrous metals with a high-temperature arc.
It is commonly used over modern welding methods due to its efficiency.
It generates a lower temperature arc than other arc welding processes.
It is mainly preferred for low-temperature welding of soft metals.
Correct answer
It is used for all ferrous and non-ferrous metals with a high-temperature arc.
Which of the following is the primary reason why copper is widely used as a conductor in electrical wiring?
Copper has low resistance and high conductivity.
Copper is abundant and inexpensive.
Copper has high resistance to electricity.
Copper has a low melting point.
Correct answer
Copper has low resistance and high conductivity.
Which of the following calipers are used for marking lines, parallel to inside and outside edges and for locating the centre of round bars?
Firm joint calipers
Leg and point calipers
Simple calipers
Spring joint calipers
Correct answer
Firm joint calipers
In the standard marking of a grinding wheel (e.g. 51-A 46 H 5 V 8), what does the symbol 'H' represent?
Type of abrasive used in the wheel
Grain size of the abrasive particles
Type of bond used in the wheel
Grade of the grinding wheel
Correct answer
Type of abrasive used in the wheel
During a lathe operation, the influence of machining allowance on the total depth of cut taken is that:
it directly determines the depth of cut in each pass
it directly determines the feed rate corresponding to the speed
it sets the total material to be removed, which is then divided into multiple cuts
it has no influence on the depth of cut
Correct answer
it directly determines the depth of cut in each pass
Match the following.
| (A) | Threading tool | (P) |  |
|---|---|---|---|
| (B) | Profile tool | (Q) |  |
| (C) | Facing tool | (R) |  |
| (D) | Knurling tool | (S) |  |
A-P, B-R, CQ, D-S
A-S, B-R, C-Q, D-P
A-S, B-Q, C-R, D-P
A-S, B-R, C-P, D-Q
Correct answer
A-P, B-R, CQ, D-S
Find the lateral surface area of a cube with side length 5 cm.
200 cm²
100 cm²
150 cm²
125 cm²
Correct answer
200 cm²
Which of the following statements is NOT correct for using scribers?
Place a cork on the point when in use to prevent accidents.
Scriber points are very sharp, so they are to be handled very carefully.
While scribing lines, the scriber is used like a pencil.
Do not put the scriber in your pocket.
Correct answer
Place a cork on the point when in use to prevent accidents.
In a series circuit, three resistors of 10 ohms, 20 ohms, and R ohms are connected in series with a 12 V battery. What is the value of resistance R if current flowing in the circuit is 0.2 A?
30 ohms
20 ohms
10 ohms
40 ohms
Correct answer
30 ohms
A material with high toughness must have:
high ductility and low strength
low strength and low ductility
high strength and low ductility
high strength and high ductility
Correct answer
high ductility and low strength
Which type of spindle drive motor is preferred in CNC machine tools due to advancements in microprocessor-based technology?
Three-phase AC induction motor
Single-phase AC synchronous motor
Separately excited DC shunt motor
Series excited DC motor
Correct answer
Three-phase AC induction motor
What is the unit of measurement used for thread pitch in the metric system?
Degrees
Newtons
Threads per inch (TPI)
Millimetres (mm)
Correct answer
Degrees
What is the primary function of the drill head in a drilling machine?
It supports the drill table and workpiece during operation.
It holds the cutting tool securely in place.
It controls the coolant flow during drilling operations.
It houses the driving and feeding mechanism for the spindle.
Correct answer
It supports the drill table and workpiece during operation.
Why is a Vernier height gauge preferred over a simple steel rule for height 8 measurement?
It provides more precise measurements.
It is cheaper than steel rule.
It does not require a surface plate.
It is comparatively more portable.
Correct answer
It provides more precise measurements.
What is a possible consequence if a CNC machine stops suddenly during actual cutting movement?
Automatic tool replacement without any damage
Tool breakage and tool marks on the workpiece
No effect on the tool or the workpiece
Only a minor delay in restarting the program
Correct answer
Automatic tool replacement without any damage
What is the typical temperature range of a mercury-based clinical thermometer?
0°C to 100°C
0°C to 50°C
35°C to 42°C
Correct answer
Which of the following colours is commonly used for caution signs?
Green
Yellow
Blue
Red
Correct answer
Green
In an ISO system of Limits and Fits (ISO:286-1:1998), the tolerance size is designated as :
basic value followed by symbol composed of a letter and number
basic value followed by a number
basic value alone
basic value followed by a letter
Correct answer
basic value followed by symbol composed of a letter and number
In the process of bisecting angle BAC in the given figure, why do we draw arcs from points D and E?
To mark equal lengths
To find midpoint AB
To intersect above A
To intersect line AC
Correct answer
To mark equal lengths
Which of the following options correctly describes the axis convention in a CNC turning centre?
The spindle axis is designated as Y and the radial axis toward the tool post is X.
The spindle axis is designated as Z and the radial axis away from the tool post is Y.
The spindle axis is designated as X and the radial axis toward the tool post is Z.
The spindle axis is designated as Z and the radial axis toward the tool post is X.
Correct answer
The spindle axis is designated as Y and the radial axis toward the tool post is X.
Which type of line is used to represent hidden edges or surfaces in a technical drawing, as per BIS SP 46-2003?
Continuous thin line
Chain thin line
Dashed thin line
Continuous thick line
Correct answer
Continuous thin line
_______are the greatest option for experts due to their durability and flexibility.
High-carbon steel blades
Bi-metal blades
Fine-toothed blades
Coarse-toothed blades
Correct answer
High-carbon steel blades
As we know from the graduation of micrometer, if we give one full round to thimble, its spindle moves ½ mm forward or backward. Therefore, one part of the thimble is its___________.
Least count
Pitch
Lead
MSR
Correct answer
Least count
What does the surface finish symbol shown in the given figure represent?
The surface should be coated without material removal.
The surface must be left in its cast or forged state.
No machining is required on this surface.
A specific surface texture requirement is indicated.
Correct answer
The surface should be coated without material removal.
Which type of rake angle is generally used for milling materials that produce continuous chips?
Zero rake
Positive rake
Negative rake
Neutral rake
Correct answer
Zero rake
When passing stationary vehicles, keep a watch on_________ who may come out suddenly from the front of the stationary vehicle. While overtaking, it should be done on the_____ side. Always keep a good________ between your vehicle and others.
drivers; left; space
vehicles; right; gap
cyclists; left; interval
pedestrians; right; distance
Correct answer
drivers; left; space
Fine-toothed blades are better suited for:
infrequent use
cutting metals
cutting wood and plastic
experts due to their durability and flexibility
Correct answer
infrequent use
Which of the following metals has the lowest melting point?
Mercury
Lead
Iron
Gold
Correct answer
Mercury
If the basic size of the diameter of a shaft is 80 mm and the variation limit of \(\pm\)0.07 mm is given, then its high limit and low limit are_____ and_______.
79.93, 80.07
79.00, 80.07
80.00, 79.93
80.07, 79.93
Correct answer
79.93, 80.07
The type of feed primarily used for grooving operations on a lathe is ______feed.
angular
rotary
cross
longitudinal
Correct answer
angular
During the turning operation on lathe, if D is the initial diameter and d is the final diameter of the work piece, the depth of cut, t, is calculated by_______.
t=D/d
t = (D - d) / 2
t=D-d
t = (D + d) / 2
Correct answer
t=D/d
Who is authorised to conduct road tests on workshop vehicles?
The company accountant
Visitors to the workshop
Any employee
Only trained and certified personnel
Correct answer
The company accountant
Which of the following statements about title block is/are true?
Statement 1: The title block is situated in the bottom right-hand corner of the drawing
sheet.
Statement 2: The contents of the title block are standardised and cannot be modified to suit individual company needs.
Statement 1 is false, but statement 2 is true
Statement 1 is true, but statement 2 is false
Both statements are true
Both statements are false
Correct answer
Statement 1 is false, but statement 2 is true
What is the Sl unit of 'volume'?
Cubic centimetre
Cubic metre
Litres
Millilitres
Correct answer
Cubic centimetre
Tapering of a small part of a job at its edge or corner is known as___________.
step turning
facing
chamfering
knurling
Correct answer
step turning
What does the grit size number represent in relation to the grain size?
A smaller grit size number means finer grit.
The grit size number indicates the grain's diameter.
A larger grit size number means coarser grit.
A larger grit size number means finer grit.
Correct answer
A smaller grit size number means finer grit.
A voltmeter with a resistance of 10,000 ohms is connected across a circuit that has a 1 voltage of 50 V. What is the current flowing through the voltmeter?
4 mA
5 mA
2 mA
1 mA
Correct answer
4 mA
Convert 8.5% into a decimal.
.85
0.085
8.5
0.85
Correct answer
.85
Which of the following is a major effect of a collision in a CNC machining centre?
Increased machine downtime and repair costs
Automatic correction of machining errors
Enhanced efficiency in CNC operations
Improved tool performance and longevity
Correct answer
Increased machine downtime and repair costs
________is a type of turning where a workpiece is turned into a sequence of steps with varying diameters.
Knurling
Step turning
Facing
Chamfering
Correct answer
Knurling
The Sl unit of temperature is/are_______.
celsius
both kelvin and celsius
fahrenheit
kelvin
Correct answer
celsius
______must be ascribed for the sake of convenience and is the size of a part in relation to which all limits of variation are determined.
Nominal size
Actual size
Basic size alone
Basic size or zero size
Correct answer
Nominal size
Which of the following is NOT a part of the micrometer?
Frame
Anvil
Jam
Spindle
Correct answer
Frame
If the length of a resistor is doubled, what happens to its resistance, assuming all other 8 factors remain constant?
The resistance is doubled.
The resistance is halved.
The resistance remains the same.
The resistance quadruples.
Correct answer
The resistance is doubled.
Which of the following correctly describes the use of a screw pitch gauge?
It determines the pitch of a thread on screws or bolts.
It measures the external diameter of cylindrical objects.
It verifies the length of threads on fasteners.
It measures the depth of internal threads in nuts.
Correct answer
It determines the pitch of a thread on screws or bolts.
The driving mechanism of the slotting machine converts the rotary motion of the bull gear into the _______motion of the ram.
circular
reciprocating
twisting
oscillating
Correct answer
circular
For your safety at work, which of the following should be ensured?
Neither statement 1 nor 2
Only statement 1
Only statement 2
Both statements 1 and 2
Correct answer
Neither statement 1 nor 2
Which of the following statements about slip gauges is true?
Slip gauges do not require calibration.
Slip gauges are used only for rough measurements.
Slip gauges are used for setting measuring instruments.
Slip gauges are flexible and can bend easily.
Correct answer
Slip gauges do not require calibration.
A file that is flat on one side and curved on the other side is known as a ________file.
half-round
rectangular
triangular
square
Correct answer
half-round
On what basis is a joint said to be double-riveted lap joint or triple riveted lap joint?
Based on strength of joint
Based on type of joint
Based on number of columns of rivets in joint
Based on number of rows of rivets in joint
Correct answer
Based on strength of joint
As we know from the graduation of micrometer, if we give one full round to thimble, its spindle moves 1½ mm forward or backward. A buck part can be divided into 0 to 50 parts. The least count of the micrometer is mm.
0.50
0.05
0.01
0.10
Correct answer
0.50
Which of the following types of chisels is used for separating metals after chain drilling?
Web chisel
Cross-cut chisel
Diamond point chisel
Flat chisel
Correct answer
Web chisel
Which of the following is a characteristic of incremental programming?
It always measures dimensions from a fixed reference point.
It requires all dimensions to be positive values.
It does not allow the use of direction signs for motion.
It defines each position relative to the last specified point.
Correct answer
It always measures dimensions from a fixed reference point.
In a logic circuit, two inputs A and B are applied to an AND gate, and the output of the AND gate is connected to the input of a NOT gate. If the inputs A and B are both at logic 0, what will be the output of the entire circuit?
Undefined
0
2
1
Correct answer
Undefined
When creating 10 mm single-stroke capital letters in vertical style, what does the 10 mm distance between horizontal parallel lines represent?
Letter height
Interline spacing
Stroke thickness
Letter width
Correct answer
Letter height
The wave set of hacksaw teeth set has a pitch of__________.
1.0 mm.
0.8 mm
2.0 mm
0.5 mm
Correct answer
1.0 mm.
A 100-mm prick punch with a 7-mm diameter body could have a 2.5-mm diameter point ground to an angle of_______.
120°
90°
30°
45°
Correct answer
120°
Identify the below tool used on the Lathe.
Boring tool
Threading tool
Parting tool
Knurling tool
Correct answer
Boring tool
Which of the following statements about slotting tools is correct?
Slotting tools remove metal during the horizontal stroke of cutting.
Slotting tools are weaker than the material being cut to ensure easy machining.
Slotting tools have angles determined with respect to the horizontal plane.
Slotting tools have a front rake and clearance angles but no side rake angle.
Correct answer
Slotting tools remove metal during the horizontal stroke of cutting.
Which of the following correctly differentiates a cutting blowpipe/torch from a welding blowpipe/torch?
A cutting blowpipe has 3 control valves, while a welding blowpipe has 1.
A cutting blowpipe has 1 control valve, while a welding blowpipe has 2 control valves.
A cutting blowpipe has 2 control valves and 1 lever, while a welding blowpipe has 2 control valves.
A cutting blowpipe has 2 levers, while a welding blowpipe has 1 lever.
Correct answer
A cutting blowpipe has 3 control valves, while a welding blowpipe has 1.
Which of the following 'V' blocks will have one 'V' groove and two grooves (slots) on 5 either side for clamping in two positions?
Matched pair 'V' block
Single level double groove 'V' block
Single level single groove 'V' block
Double level single groove 'V' block
Correct answer
Matched pair 'V' block
Which of the following terms in the 5S concept refers to making a habit of maintaining 6 the established procedures?
Sustain
Set
Shine
Sort
Correct answer
Sustain
Which type of shank is commonly used on hand reamers?
Straight shank with a square end
Morse taper shank
Straight shank with a round end
Threaded shank
Correct answer
Straight shank with a square end
Select the correct representation as Tolerance size for a hole from the given options.
50 H8/g7
50g7
50H8
50H8-c7
Correct answer
50 H8/g7
In taper turning by the tailstock offset method, a job has a large diameter (D) of 60 mm, a small diameter (d) of 40 mm, a taper length (l) of 200 mm and a total job length (L) of 800 mm. What will be the required tailstock offset?
5 mm
20 mm
10 mm
40 mm
Correct answer
5 mm
In a Full Lap joint, diagonal pitch is given by________, where pd -diagonal pitch, p- pitch, d-diameter of rivets
pd = \(\frac{(2p x d)}{3}\)
pd = \(\frac{(2p - d)}{3}\)
pd = \(\frac{(2p + d)}{3}\)
pd = \(\frac{(2p + 6d)}{4}\)
Correct answer
pd = \(\frac{(2p x d)}{3}\)
When used for fits between shaft and hole, __________is specified or both shaft and hole.
the hole size is more than the shaft size
the same basic size
the shaft size is more than the hole size
different size
Correct answer
the hole size is more than the shaft size
Which of the following statements is INCORRECT about end standard?
It is used to measure the distance between two engraved lines.
Faces are subject to wear.
It measures the distance between two parallel flat surfaces.
It is slower but more accurate.
Correct answer
It is used to measure the distance between two engraved lines.
Which of the following information is necessary to construct a rectangle?
Length of one side and the area of the rectangle
Length of two adjacent sides
Only the length of the diagonal
Only the length of one side
Correct answer
Length of one side and the area of the rectangle
What is the minimum age for employment in factories or mines or other hazardous 4 employment, according to Article 24 of the Indian Constitution?
14 years
18 years
16 years
12 years
Correct answer
14 years
175 questions in the full paper