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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.
The resistivity of a conductor depends on which of the following factors?
Area of the conductor
Mass of the conductor
Nature of the conductor
Diameter of conductor
Correct answer
Area of the conductor
Which of the following statements is correct regarding negative work done?
The work done cannot be negative.
When the force is perpendicular to the displacement, the work done is negative.
When the force acts opposite to the direction of displacement, the work done is negative.
When the force and displacement are in the same direction, the work done is negative.
Correct answer
The work done cannot be negative.
In areas with hot climate, white colour of the exterior walls of the house is preferred because
White color keeps the interior environment of the house cool by reflecting sunlight.
White color makes the wall more durable.
White color makes the house brighter by absorbing more sunlight.
The white color looks good.
Correct answer
White color keeps the interior environment of the house cool by reflecting sunlight.
The sum of Yash's and his father's ages is 90 years. When Yash's age equals his father's present age, he will be five times his son Suraj's present age. When Yash's age equals his father's present age, Suraj's age will be 12 years more than Yash's present age. Find Suraj's present age.
15 years
18 years
12 years
16 years
Correct answer
15 years
What should come in place of question mark (?) in the given alphanumeric series?
G5, I10, L15, N20, Q25, S30, ?
W35
V35
V40
U35
Correct answer
W35
Which of the following is a supplementary protocol that allows non-ASCII data to be sent via e-mail?
HTTPS
Multipurpose Internet Mail Extensions (MIME)
DNS
Mailing Lists
Correct answer
HTTPS
Which of the following options best describes the primary function of digital signatures in electronic communications?
It automatically stores all electronic documents for future reference.
It encrypts the entire message content to ensure confidentiality.
It verifies the identity of the sender and ensures the integrity of the message.
This allows the recipient to edit the document before adding the signature.
Correct answer
It automatically stores all electronic documents for future reference.
The areas of three adjacent faces of a solid cuboid are 216 cm², 114 cm² and 19 cm². Find the volume (in cm³) of the cuboid.
684
955
532
880
Correct answer
684
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it seems to be at variance from commonly known facts, decide which of the given conclusions logically follows from the statements.
Statements:
Some bananas are litchis.
All litchis are kiwis.
Some kiwis are strawberries.
Conclusions:
All bananas are kiwis is a possibility.
All kiwis are litchis.
Only conclusion 1 follows
Only conclusion 2 follows
Neither conclusion 1 nor 2 follows
Both conclusions 1 and 2 follow
Correct answer
Only conclusion 1 follows
Which of the following ecosystems has very low temperatures and frozen soil?
Desert
Tropical rainforest
Pasture
Tundra
Correct answer
Desert
If A is an acute angle and p tan A = n sec A, then find the value of \(\frac{p^2 - n^2}{pn}\).
cot A .cos A
sin A .cos A
\(\frac{\tan A}{\sec A}\)
None of the above.
Correct answer
cot A .cos A
A fruit vendor initially had a few apples. He sold 40% of them and still had 300 apples left. How many apples did he initially have?
750
450
600
500
Correct answer
750
Megha bought a bag for ₹1,271 after getting an 18% discount on the marked price. Find the marked price of the bag.
1,450
1,650
1,550
1,350
Correct answer
1,450
Which of the following methods is the safest method for disposal of toxic dust?
Leaving it in the air for dilution.
Sweeping it in open areas.
Using special hazardous waste disposal containers.
Putting it in regular trash cans.
Correct answer
Leaving it in the air for dilution.
Vijay cycles 10 meters from home to tuition, then 5 meters to the shop. He returns home in the same way, covering the same distance. Find the total length of the path.
20 m
15 m
Zero
30 m
Correct answer
20 m
A, B, C, D, E, and F live on six different floors of the same building. The ground floor is numbered 1, the floor immediately above it is numbered 2, and so on, until the topmost floor is numbered 6. D lives on an odd-numbered floor, but not 3. The sum of the floors on which D and E live is 7. A lives on the floor immediately below C. F lives on the topmost floor. How many people live between E and F?
4
1
3
2
Correct answer
4
Which of the following noise levels is considered potentially harmful to human health when experienced over a long period of time?
70 dB
90 dB
30 dB
50 dB
Correct answer
70 dB
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 letter-cluster pair is not based on the number of consonants/vowels or their position.)
GN-PV
JQ-SY
HO-QW
AH-JR
Correct answer
GN-PV
Which of the following relations is not correct?
Electric power = (current)2 × resistance
Electric power = voltage × current
Electric power = voltage/current
Electric power = (voltage)2 / resistance
Correct answer
Electric power = (current)2 × resistance
In the following triplet, each group of letters is related to the next group following a certain logic. Select the option from the given ones that follows the same logic.
TERM-ERTM-TMRE
WHEN-HWEN-WENH
ZERO-EZRO-ZREO
VICE-ICVE-VECI
USER-RESU-REUS
Correct answer
WHEN-HWEN-WENH
Which of the following options does not correctly represent the electric power P in a circuit (current, potential difference and resistance are symbolically written as I, V and R respectively.)
\(P = \frac{V^2}{R}\)
\(P = I^2 R\)
\(P = VI\)
\(P = {IR^2}\)
Correct answer
\(P = \frac{V^2}{R}\)
In a certain code language, 'BARE' is coded as '8264' and 'RIDS' is coded as '3587'. What is the code for 'R' in the given code language?
3
8
6
5
Correct answer
3
Kinetic energy and potential energy together are called which form of energy?
Mechanical
Chemical
Ionic
Nuclear
Correct answer
Mechanical
If a circuit contains resistors of 10 Ω, 20 Ω and 60 Ω are connected in parallel, then find the total resistance of the circuit.
90 Ω.
60 Ω
6 Ω
20 Ω
Correct answer
90 Ω.
What term is used to describe organisms in an ecosystem that produce their own food?
Consumer
Decomposer
Vegetarian
Producer
Correct answer
Consumer
What should come in place of question mark (?) in the given series?
185 174 163 152 ? 130
144
142
143
141
Correct answer
144
What is the primary source of energy for most ecosystems?
Soil
Wind
Sunlight
Water
Correct answer
Soil
Potential energy falls under which of the following categories of energy?
Thermal energy
Light energy
Chemical energy
Mechanical energy
Correct answer
Thermal energy
Two resistors of resistance 20 Ω and 30 Ω are connected in series in a circuit. If the supplied voltage is 250 V, find the current transmitted through the circuit.
8 A
12 A
5 A
20 A
Correct answer
8 A
Study the given bar graph and answer the question below.
The given bar graph shows the number of flats sold by a builder in five different cities in the year 2020.
The number of flats sold in Delhi is what percent more than the number of flats sold in Mumbai?
75%
125%
120%
150%
Correct answer
75%
Which of the following instruments is used to measure temperature?
Hygrometer
Voltmeter
Thermometer
Odometer
Correct answer
Hygrometer
Use of energy efficient machinery in industrial settings mainly helps in ____________.
increase energy consumption and consequently the cost of the product
reducing industrial energy requirements and improve the competitiveness of products
reducing operational efficiency
extending the life of old equipment
Correct answer
increase energy consumption and consequently the cost of the product
A dozen pairs of jeans costing ₹3,520 are available at a discount of 35%. How many pairs of jeans can be purchased for ₹572?
2
5
1
3
Correct answer
2
Refer to the following letter and symbol series and answer the question that follows. Counting is to be done from left to right only.
(Left) L R Ω Y A $ K ^ T J # Q & # E % S U * £ B (Right)
How many such symbols are there, each of which is immediately preceded by a vowel and also immediately followed by a letter$?
Two
One
Four
Three
Correct answer
Two
In the SI system, which of the following options best describes the fundamental quantities?
Distance, Speed, Acceleration
Temperature, pressure, volume
Force, power, energy
Length, mass, time
Correct answer
Distance, Speed, Acceleration
An ammeter has 20 divisions between 0 and 2 A. The least count of an ammeter is _______________.
0.2 A
0.1 A
1 A
2 A
Correct answer
0.2 A
If 'A' denotes '÷', 'B' denotes 'x', 'C' denotes '+' and 'D' denotes '-', then what will come in place of question mark (?) in the following equation?
38 C 32 A 4 D 5 B 7=?
10
8
11
9
Correct answer
10
If \(x^3 + y^3 = 16\) and x + y = 4, then find the value of xy.
4
2
3
0
Correct answer
4
What is the average human body temperature?
40°C
32°C
42°C
37°C
Correct answer
40°C
Which of the following statements is true?
In the kitchen, aluminium utensils are used because aluminium is a good conductor of heat.
Both insulators and conductors allow heat to pass through them easily.
Plastic is a good conductor of heat.
Wood is a good conductor of heat.
Correct answer
In the kitchen, aluminium utensils are used because aluminium is a good conductor of heat.
Refer to the following letter and symbol series and answer the question that follows. Counting is to be done from left to right only.
(Left) ^ T J # * £ B L R Ω Y # E % S U $ K Q & (Right)
How many such letters are there, each of which is immediately preceded by a letter and also immediately followed by a symbol$?
One
Two
Three
Four
Correct answer
One
According to the SI system of units, how many fundamental units are used to measure physical quantities?
5
10
7
4
Correct answer
5
Eight people are sitting in two parallel rows containing 4 people in each row, in such a way that there is an equal distance between adjacent persons. Row 1 contains A, B, C and D, all of whom are facing south. Row 2 contains P, Q, R and S, all of whom are facing north. Thus, each person faces another person in the other row. Only two people sit between P and Q. A faces the person sitting to the immediate left of P. R sits to the immediate left of S. D sits to the immediate right of C. Who among the following faces P?
D
C
B
A
Correct answer
D
Which of the following sequences of components primarily serves to execute instructions, store permanent firmware, temporarily store data during program execution, and provide a platform for interconnecting hardware components on a computer motherboard?
RAM-ROM - CPU - PCB
PCB-ROM-CPU-RAM
CPU-RAM-ROM-PCB
CPU-ROM-RAM- PCB
Correct answer
RAM-ROM - CPU - PCB
The area of a regular polygon with side 12 cm is 144 cm². If the perpendicular distance from the center to the side of the polygon is 6 cm, find the number of sides of the polygon.
5
7
6
4
Correct answer
5
A man purchased two varieties of pens at the rates of ₹8 for 9 pens and ₹8 per pen. If he purchased an equal number of pens of each of the two varieties and then sold all his pens at ₹6 per pen, what was his profit percentage?
33%
32%
45%
35%
Correct answer
33%
Match the columns:
| Engineering Applications | Types of Engineering Drawings |
|---|---|
| A) Plans, facade elevations, and foundation drawings of houses to be constructed. | P) Mechanical Engineering Drawings |
| B) Circuit Diagrams and Electrical Installation Drawings. | Q) Electronics Engineering Drawings |
| C) PCB Track Drawings. | R) Electrical Engineering Drawings |
| D) Riveted Joints and Welded Joints. | S) Civil Engineering Drawings |
A-P: B-R; C-Q; D-S
A-S; B-P; C-Q; D-R
A-S; B-R; C-Q; D-P
A-S; B-R; C-P; D-Q
Correct answer
A-P: B-R; C-Q; D-S
6 men or 5 women can complete a task in 7 days. 6 men work for 5 days and then leave. Find the number of women needed to complete the remaining task in 5 days.
4
2
1
3
Correct answer
4
Which of the following statements are correct regarding the use of a fire extinguisher?
Statement 1: It is safe to attempt to extinguish any type of fire, regardless of the presence of toxic fumes.
Statement 2: The P.A.S.S. technique, which stands for Pull, Aim, Squeeze, and Sweep, is recommended for effective use of a fire extinguisher.
Neither statement 1 nor 2 is correct.
Only statement 1 is correct.
Both statements 1 and 2 are correct.
Only statement 2 is correct.
Correct answer
Neither statement 1 nor 2 is correct.
Which of the following three-dimensional geometric figures has eight vertices and six rectangular faces?
Pyramid
Cylinder
Parallelogram
Cuboid
Correct answer
Pyramid
In a hospital, the ratio between the number of doctors and the number of nurses was 1 : 3. The addition of 12 new doctors and the departure of 24 nurses brings the ratio to 3 : 4. After k more nurses resign from the hospital, the ratio becomes 1 : 1. Find the value of k.
12
28
24
26
Correct answer
12
Which of the following statements is/are correct regarding functional dimension (F) in engineering drawings?
Statement 1: Functional dimensions are essential for the function of the component or space.
Statement 2: Functional dimensions are usually shown without any boundaries.
Statement 3: Functional dimensions are shown for reference purposes only.
Only statement 1 is true
Only statement 3 is true
Only statements 2 and 3 are true
Only statements 1 and 2 are true
Correct answer
Only statement 1 is true
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 from commonly known facts, decide which of the given conclusions logically follows from the given statements.
Statements:
II. All tables are cabinets.
III. All cabinets are beds.
Conclusions:
I. Some beds are tables.
II. All cabinets are desks.
Only conclusion I follows.
Only conclusion II follows.
Both conclusions I and II follow.
Neither conclusion I nor conclusion II follows.
Correct answer
Only conclusion I follows.
Ganpat starts from point A and walks 18 m west. He turns left, walks 32 m, then turns left again, walks 26 m, then turns left again, walks 61 m, and stops at point B. Meena starts from point Z, which is 22 m east of point A. She walks 42 m north, turns right, walks 35 m, turns right and walks 13 m, and stops at point Y. Find the shortest distance between point B and point Y. (All turns are 90-degree turns only.)
52 m
43 m
57 m
49 m
Correct answer
52 m
Three circular plates of radii 3 m, 2 m, and 1 m are cut from a rectangular cardboard sheet 46 m long and 8 m wide. If the area of the remaining cardboard sheet is equal to the area of a square, find the length of each side of the square. (Use \(\pi = \frac{22}{7}\))
20 m
18 m
14 m
16 m
Correct answer
20 m
In a certain code language, 'CARD' is coded as '8674' and 'MICE' is coded as '3517'. What is the code for 'C' in the given code language?
8
7
1
6
Correct answer
8
When an object of mass 50 kg is moved from one point to another along a horizontal line, what is the work done by the force of gravity on the object? \((g = 10 m / s ^ 2)\)
Zero
50 J
500 J
-500 J
Correct answer
Zero
If 50 : x :: x : 32 and x > 0, then find the value of x.
45.8
40
38.7
40.6
Correct answer
45.8
Two plumbers, X and Y, are paid a total of ₹770 per day by their employer. If X is paid 140% of the amount paid to Y, how much is Y paid per day (in ₹, rounded to two decimal places)?
320.83
220.83
270.83
370.83
Correct answer
320.83
What will be the value of 10 km/hr in SI units?
10 m/s
0.16 m/s
2.7 m/s
1000 m/s
Correct answer
10 m/s
In a certain code language,
'A + B' means 'A is the mother of B',
'A - B' means 'A is the brother of B',
'A × B' means 'A is the wife of B' and
'A & B' means 'A is the father of B'.
If 'E & F + G - H x T', then how is E related to T?
Wife's mother's father
Wife's brother
Wife's father
Wife's mother's brother
Correct answer
Wife's mother's father
If x = (7 + √5), y = (7 - √5), then find the value of x² + y².
96
137
124
108
Correct answer
96
Convert 1 kilowatt hour (kWh) to joule.
\({1\ \text{kWh} = 3.6 \times 10^6\ \text{J}}\)
\(1\ \text{kWh} = 3.6 \times 10^7\ \text{J}\)
\(1\ \text{kWh} = 3.6 \times 10^5\ \text{J}\)
\(1\ \text{kWh} = 3.6 \times 10^3\ {J}\)
Correct answer
\({1\ \text{kWh} = 3.6 \times 10^6\ \text{J}}\)
Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pairs 4 to the left of :: is the same as the pattern and relationship followed between the letter-cluster pairs 4 to the right of ::?
# = JFK, % = KGM
# = JFK, % = KGL
Correct answer
What is the designation of the trimmed sheet with dimensions 297 mm x 420 mm, as per the ISO-A size series?
A1
A2
A4
A3
Correct answer
A1
Which of the following expressions is not correct for electric power?
P = VI
P= V2/R
P = I2/R
P = I2R
Correct answer
P = VI
What does the symbol given below in the circuit diagram represent?
Voltmeter
Voltage source
Resistor
Variable resistor
Correct answer
Voltmeter
Preeti, Kiran, Grace, Ankit, Deepak, Nitin and Neelam each have an exam on a different day of the same week, starting from Monday and ending on Sunday. Preeti has an exam on Thursday. Only one person has an exam between Preeti and Nitin. Grace has an exam the day immediately before Nitin but not on Monday. Only two people have an exam between Grace and Deepak. Neelam has her exam before Ankit but after Kiran. Who among the following has an exam on Monday?
Nitin
Neelam
Kiran
Deepak
Correct answer
Nitin
If \(\frac{5}{9}\) of a number is 6 more than \(\frac{1}{2}\) of that number, then find that number.
104
108
106
102
Correct answer
104
What should be done immediately after a fuel spillage in a workshop?
Cover it with plastic to prevent evaporation.
Use water to wash it off
Leave it as is and inform the supervisor later
Empty the area and control overflow using absorbent materials
Correct answer
Cover it with plastic to prevent evaporation.
A cube of mass 5.74 g occupies a volume of 1.2 cm³. The density (in g/cm³) expressed with the correct number of significant figures is _____________.
4.7833
4.8
4.78
4.783
Correct answer
4.7833
In science, work done is defined as:
force / distance
force / displacement
force × displacement
force × distance
Correct answer
force / distance
Simplify 976 × 265 + 976 × 735.
752800
976000
658200
876000
Correct answer
752800
Which of the following is not an advantage of using mobile governance using ICT?
Reduced costs for the government
Better access to government services for citizens
Increased transparency and accountability in government
Increasing the efficiency of government processes
Correct answer
Reduced costs for the government
Study the given diagram carefully and answer the question given below. The numbers in different sections represent the number of children who like different desserts.
How many children like both pastries and ice cream but not chocolate?
9
6
7
8
Correct answer
9
The rate of doing work is known as ___________.
Power
Force
Kinetic energy
Potential energy
Correct answer
Power
Which of the following actions help prevent injuries from slips and falls?
Wearing loose shoes for comfort
Walk carefully on wet floors
Cleaning up spills immediately and using warning signs
Ignoring clutter on the sidewalk
Correct answer
Wearing loose shoes for comfort
In the following series, only one letter-cluster is wrong. Choose the wrong letter-cluster.
PCO MEM JGK GIJ DKG AME
AME
JGK
DKG
GIJ
Correct answer
AME
Which of the following statements about geometric shapes is/are true?
Geometric shapes are enclosed figures formed by joining two or more points, lines, or curves.
Geometric shapes are always open-ended and made up of only straight lines.
Only statement 1 is true
Only statement 2 is true
Both statements 1 and 2 are true
Neither statement 1 nor 2 is true
Correct answer
Only statement 1 is true
A tank has two inlets, I1 and I2. I1 alone can fill it in 8 hours, and I2 alone can fill it in 4 hours. If both inlets are open, how long will it take to fill the tank?
2 hours
\(2\frac{2}{3}\) hours
\(3\frac{2}{3}\) hours
\(4\frac{2}{3}\) hours
Correct answer
2 hours
A 280 m long train travelling at a speed of 72 km/hr crosses a platform in 30 seconds. Find the length (in m) of the platform.
335
280
300
320
Correct answer
335
Amit's income in 2019 was ₹27,000. His income increases by 10% each year. What was his income (in ₹) in 2021?
32,400
29,700
32,670
27,000
Correct answer
32,400
Which of the following is the best way to identify hazards at the workplace?
Waiting for an event to occur
Performing regular safety inspections
Relying on employees to report accidents
Ignoring small risks
Correct answer
Waiting for an event to occur
Given below are two sets of numbers. In each set, performing certain mathematical operations on the first number gives the second number. Similarly, performing certain mathematical operations on the second number gives the third number, and so on. Which of the given options follows the same set of operations as the given sets?
(Note: Operations must be performed on whole numbers without breaking the numbers into their component digits. For example, take 13. Operations such as addition, subtraction, multiplication, etc. can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not permitted.)
3-9-12-24; 4-16-20-40
9-2-11-24
1-1-2-4
6-12-18-34
7-49-56-122
Correct answer
9-2-11-24
Which of the following will verify the credentials and documents of applicants uploaded on the National Scholarship Portal?
National Scholarship Portal
The University/Institute in which the applicant is studying.
Third Party
Government
Correct answer
National Scholarship Portal
The average of three numbers is 20. If two numbers are 16 and 24, find the third number.
22
21
20
19
Correct answer
22
Which of the following statements is/are true?
Statement 1: Heat conductors allow heat to pass through them easily.
Statement 2: All plastics are good conductors of heat.
Only statement 1
Only statement 2
Neither statement 1 nor statement 2
Both statement 1 and statement 2
Correct answer
Only statement 1
In the following number-pairs, the second number is obtained by performing certain mathematical operations on the first number. What number should be replaced by X and Y so that the pattern followed by the two numbers to the left of :: is the same as the pattern followed by the two numbers to the right of ::?
(Note: Operations must be performed on whole numbers, without breaking the numbers into their component digits. For example, take 13. Operations such as addition/subtraction/multiplication can be performed on 13. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not permitted.)
X: 85 :: 36: Y
x = 44, Y = 73
x = 42, Y = 73
x = 43, Y = 77
x = 42, Y = 71
Correct answer
x = 44, Y = 73
Jaspreet deposited ₹58,550 at 20% annual interest rate compounded annually. What is the total amount (in ₹) Jaspreet will receive after 2 years ?
84,700
84,312
84,735
83,876
Correct answer
84,700
Rinku travels 136 meters in his car in 17 seconds. Find his speed (in km/hr).
11.6
17
28.8
26
Correct answer
11.6
What should come in place of question mark (?) in the given series?
893 891 889 887 ? 883
986
885
985
886
Correct answer
986
Ten people are sitting in two parallel rows, five in each row, in such a way that there is an equal distance between adjacent persons.
Row I contains A, B, C, D, and E, all of whom are facing south. Row II contains R, S, T, U and V, all of whom are facing north. Thus, each person faces a person from the other row. A sits at the right end of his row and faces U. R sits in the middle of his row and faces C. E sits between C and D, facing T. S sits at the right end of his row.
Who sits exactly opposite B?
T
R
U
V
Correct answer
T
What type of thermometer is used to measure the internal temperature of ice?
Digital thermometer
Clinical thermometer
Infrared thermometer
Laboratory Thermometer
Correct answer
Digital thermometer
An ammeter with a range of 0 to 10 A reads a current of 7.5 A. If its actual value is 6.2 A, the relative error is ________.
13%
17.33%
20.96%
4.8%
Correct answer
13%
The average of 5 results is 51 and the average of the first 4 of them is 50. The 5th result is.
55
50
51
54
Correct answer
55
A copper spoon is dipped in hot water. What happens to the other end?
It gets heated by conduction.
It cools down by conduction.
It gets heated by convection.
It cools down by convection.
Correct answer
It gets heated by conduction.
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 of the given letter-clusters does not belong to that group? (Note: The odd letter-cluster is not based on the number of consonants/vowels or their position in the letter-cluster.)
GMOT
FLNS
NTVB
LRTY
Correct answer
GMOT
A rod of length \(\frac{8}{9}\) meters breaks into two pieces. If one piece is \(\frac{1}{3}\) meters long, find the length (in m) of the other piece.
\(\frac{2}{9}\)
\(\frac{7}{9}\)
\(\frac{5}{9}\)
\(\frac{4}{9}\)
Correct answer
\(\frac{2}{9}\)
Four 4-ohm resistors are connected in parallel. These four parallel resistors are then connected in series with a 9-ohm resistor. Find the equivalent resistance.
10 ohm
2 ohm
3 ohm
1 ओम
Correct answer
10 ohm
Which of the following characteristics of the I-head combustion chamber used in petrol engines is NOT correct?
I- Larger valves or valve lift in the head result in higher volumetric efficiency
I-head is better than L-head engine at higher compression ratio
I - The top has a higher surface to volume ratio and hence higher heat loss
I-head has shorter flame catch length and hence greater freedom from shock
Correct answer
I- Larger valves or valve lift in the head result in higher volumetric efficiency
A mechanism that can split the power of a propeller shaft to the rear axle and produce variation in the speed of rear wheels when the vehicle takes a turn is called a/an:
differential unit
integral unit
torque convertor
automatic clutch unit
Correct answer
differential unit
What is the advantage of heat treating a substance?
To lower the melting point of a substance
To make sharp-edged surgical knives
To increase the weight of the substance
To convert it from one element to another
Correct answer
To lower the melting point of a substance
As per BIS SP 46-2003, which of the following applications is correctly represented by a chain-thin line in engineering drawing?
Center lines
Hidden edges
Dimension lines
Visible edges
Correct answer
Center lines
Drawing instrument box is used to carry all _______ instruments.
casting
drawing
drilling
screening
Correct answer
casting
A tube-like structure between the piston and the cylinder wall that controls the flow of air and fuel inside the cylinder. This valve has a small hole on the side that immediately aligns with a hole in the cylinder. This valve is known as a ______.
Sleeve Valve
Poppet Valve
Butterfly valve
पोर्ट के रूप में वाल्व
Correct answer
Sleeve Valve
What is the limiting value of compression ratio at which a petrol engine normally operates?
Compression ratio = 8
Compression ratio = 6
Compression ratio = 14
Compression ratio = 22
Correct answer
Compression ratio = 8
When the position of the pressure plate is such that the cushion spring of the clutch is not compressed, which of the following options is correct?
The clutch opens
This occurs in the partial attachment phase
This occurs in the attachment phase
The clutch disengages
Correct answer
The clutch opens
Which of the following designs effectively prevents contact slip and axial misplacement of the connecting rod cover and connecting rod body?
Obliquely cut design
Curvilinear cut design)
Oval cut design
Straight cut design
Correct answer
Obliquely cut design
In an F-shaped combustion chamber, which of the following parts is generally NOT located on the extended side of the combustion chamber in a petrol engine?
Camshaft
Outlet valve
Spark plug
Inlet valve
Correct answer
Camshaft
When does a vacuum enhancer create a vacuum?
When the brakes are applied
When the fuel level is low
When the engine is off and the brakes are applied
When the engine is running and the brakes are not applied
Correct answer
When the brakes are applied
For what purpose are pins and clips used in engineering drawings?
Transferring dimensions and dividing lines into equal parts
Drawing horizontal lines, parallel lines and handling/holding set squares
Keeps drawing sheet firmly fixed on drawing board so that it does not move
Supporting drawing paper or tracing paper for making drawings
Correct answer
Transferring dimensions and dividing lines into equal parts
How does the piston-and-rod assembly move in a single-acting cylinder during the working stroke?
By gravity
By an external mechanical force
By hydraulic pressure
By spring force
Correct answer
By gravity
When choosing a sheet size for an original drawing, what should be primarily considered?
Reproduction size
Required clarity and resolution
Standard size of drawing office
Orientation of the drawing (horizontal or vertical)
Correct answer
Reproduction size
Which of the following hand-operated drilling machines is used to drill small diameter holes up to 6 mm?
Bevel gear type drilling machine
Breast drilling machine
Electric hand drill
Ratchet drilling machine
Correct answer
Bevel gear type drilling machine
What is the full form of NVH in Quiet diesel technology of engine technology?
Non-Volatile Heat
Noise, Vibration, Harshness
Normal Vibration Handlin
Noise, Velocity, Heat
Correct answer
Non-Volatile Heat
Which of the following types of lubricants is used in the form of solid particles?
Silica
Greece
Graphite
Solid wax
Correct answer
Silica
Which material is used to make cellular radiator core?
Steel
Copper and brass
Plastic
Aluminum
Correct answer
Steel
Which of the following measuring instruments works on the principle of magnification of small movements of a plunger or stylus, which is converted into rotational motion of a pointer on a circular scale?
Pressure gauge
Vernier caliper
Dial test indicator
Micrometer
Correct answer
Pressure gauge
In a diesel engine, heat is supplied in which of the following thermodynamic processes?
In the adiabatic compression process
In the constant volume process
In the constant pressure process
In a constant temperature process
Correct answer
In the adiabatic compression process
Which of the following parts of the file is fitted to the tang to hold the file?
Tip or Point
Tang
Handle
Edge
Correct answer
Tip or Point
What substance is filled into the evaporative emission control (EVAP) canister to absorb fuel vapors?
Silica gel
Activated charcoal
Metal mesh
फोम स्पंज
Correct answer
Silica gel
In a velocity-time graph, represents negative slope.
Acceleration
Displacement
Distance
Retardation
Correct answer
Acceleration
What is the unit of specific gravity?
g/cm³
kg/m³
m/s²
Has no units (dimensionless)
Correct answer
g/cm³
When the engine is running and the clutch is engaged, and the clutch shaft gear drives the drive gear of the lay shaft and thus the lay shaft also rotates and the main shaft remains stationary because no gear in the main shaft is engaged with the lay shaft gear, then what type of gear is used in the car?
Reverse gear
Top gear
Neutral gear
First gear
Correct answer
Reverse gear
Which of the following expressions is correct for the power developed at the crankshaft in terms of mechanical efficiency?
Let BP be the braking power, IP be the indicated power.
IP = Mechanical efficiency × PB
BP = IP × Mechanical efficiency
Correct answer
IP = Mechanical efficiency × PB
Which part of the diesel intake system routes clean airflow from the air cleaner to the engine cylinders?
Turbocharger
Induction manifold
Inlet valve
Intake port
Correct answer
Turbocharger
What is the main cause of electric shock when a person comes in contact with electrical equipment?
Current flows through the body causing injury
Electrical equipment is not properly earthed
Electrical appliances are very powerful
Appliances are used for too long
Correct answer
Current flows through the body causing injury
If sin θ = \(\frac{3}{5}\), then find cos θ.
\(\frac{3}{4}\)
\(\frac{5}{4}\)
\(\frac{3}{5}\)
\(\frac{4}{5}\)
Correct answer
\(\frac{3}{4}\)
How does water circulate in the thermosyphon cooling system of an engine?
Due to pump pressure
Due to engine speed
Causes of the radiator fan
Due to the difference in density between hot and cold water
Correct answer
Due to pump pressure
What is the name of the tool used for force amplification?
Lever
Allen key
Screw driver
Wheel
Correct answer
Lever
What will be the sum of \((\frac{3}{8}) + (\frac{5}{12}) \)?
\(\frac{8}{20}\)
\(\frac{17}{24}\)
\(\frac{19}{24}\)
\(\frac{7}{12}\)
Correct answer
\(\frac{8}{20}\)
Which of the following metals is not used for the manufacture of piston bearings?
Cast iron
Silicon
Lead
Copper
Correct answer
Cast iron
When using a multimeter to measure current, which of the following options is correct?
The multimeter is connected in parallel with the load
The multimeter is connected directly to the power source
The multimeter is connected in series with the load
The multimeter is connected only between resistive components
Correct answer
The multimeter is connected in parallel with the load
Which gas remains unaffected in the process of 'complete' combustion?
Oxygen
Nitrogen
Water vapor
Carbon dioxide
Correct answer
Oxygen
What is the purpose of an emergency evacuation plan?
Increasing productivity
Ensuring safe and orderly evacuation during an emergency
Ignoring safety practices
Providing early departure facilities to workers
Correct answer
Increasing productivity
Which of the following vices has a handle and a small collet chuck at one end?
Pipe vice
Pin vice
Toolmaker's vice
Hand vice
Correct answer
Pipe vice
According to Boyle's law, if the absolute pressure of a gas increases at a constant temperature, what effect does it have on its volume?
It remains the same
It decreases
It fluctuates unexpectedly
It grows
Correct answer
It remains the same
In electronic circuits, what is the main advantage of using MOSFETs over other types of transistors?
High frequency response
Ability to handle higher voltages and currents than BJTs
Capable of amplifying both AC and DC signals
High input impedance and low power consumption
Correct answer
High frequency response
Which of the following systems is used to transmit engine torque to the driving wheels for road driving?
Four bar chain mechanism
Transmission system
Differential gear mechanism
Steering system
Correct answer
Four bar chain mechanism
If the current flowing in a conductor is 5A and the resistance of the conductor is 10 ohms, then what will be the voltage in the conductor according to Ohm's law?
10 V
15 V
50 V
5 V
Correct answer
10 V
In a lead-acid battery, which material is used for the positive plate during discharge?
Sulfuric acid (H2SO4)
Lead sulphate (PbSO4)
Lead dioxide (PbO2)
Lead (Pb)
Correct answer
Sulfuric acid (H2SO4)
Which of the following instruments is used to measure the piston ring end gap in a cylinder?
Micrometer
Feeler gauge
Vernier Caliper
Dial gauge
Correct answer
Micrometer
What is the correct name of the top part of the valve that interacts with the camshaft during engine operation?
Mushroom
Butterfly
Puppet
Tip
Correct answer
Mushroom
When measuring the resistance of a resistor using an ohmmeter, what does a reading of zero resistance indicate?
The ohmmeter is faulty
The resistor is open circuited
Resistor is short circuited
The resistor is functioning normally
Correct answer
The ohmmeter is faulty
What is the solution for engine overheating due to excessive carbon deposits?
Decarbonize the engine
Repair valve installation (seating)
Replace the gasket
Clean the rectum
Correct answer
Decarbonize the engine
Which of the following types of pliers is used for forming loops in wires and for cutting light metals?
Flat nose pliers
Round nose pliers
End cutting pliers
Slip-joint pliers
Correct answer
Flat nose pliers
Which of the following types of lubricating oils is used in airline industries?
Synthetic varnish
Grease and beeswax lubricants
Natural petroleum products
Biodiesel Lubricants
Correct answer
Synthetic varnish
The crucial component of a car's clutch system, located in the clutch housing, which slides along a hollow shaft and moves the clutch fork with the help of hydraulic or cable pressure, is called _____.
cushion spring
lever
fork arm
clutch release bearing
cushion spring
lever
fork arm
clutch release bearing
Correct answer
cushion spring
What should you do to ensure your personal safety at work?
Take risks to complete tasks quickly
Wear personal protective equipment
Work in a hurry without checking the equipment
Ignore warning signs and instructions
Correct answer
Take risks to complete tasks quickly
Arrange the following steps in the correct order to construct an equilateral triangle with each side 35 mm.
Join CA and CB.
Draw a line and mark AB as the side of the triangle at 35 mm.
With radius AB and centers A and B, draw an arc intersecting at C.
ABC is the required triangle.
3, 2, 1, 4
1, 2, 4, 3
2, 1, 3, 4
2, 3, 1, 4
Correct answer
3, 2, 1, 4
A type of internal spring force that expands the piston ring, depending on the design and properties of the material used, is determined by _____.
Propelled piston ring interval
Compressed ring interval
Free piston ring interval
Compression spring ring interval
Correct answer
Propelled piston ring interval
Which of the following statements is incorrect regarding four-stroke diesel engine?
In a C.I. engine, the air-fuel mixture is sucked in during the stroke and the fuel is injected into the cylinder near the end of the compression stroke.
In both petrol and diesel engines, the cycles include suction, compression, ignition, expansion and exhaust.
The operation of a C.I. engine (or Diesel engine) is practically the same as that of an S.I. engine.
In a C.I. engine, only air is sucked in during the stroke and fuel is injected into the cylinder near the end of the compression stroke.
Correct answer
In a C.I. engine, the air-fuel mixture is sucked in during the stroke and the fuel is injected into the cylinder near the end of the compression stroke.
Gaskets, seals and spacers are made using _______.
prick punch
pin punch
hollow punch
centre punch
Correct answer
prick punch
What is the recommended remedy for low oil pressure due to low oil viscosity?
Replace the oil.
Clean the oil strainer.
Tighten the strainer pipe mounting.
Replace the oil pump gear.
Correct answer
Replace the oil.
Which of the following organizations is responsible for enforcing workplace safety regulations in India?
Directorate General of Factory Advice Services and Labour Institutes (DGFASLI)
Food and Drug Administration (FDA)
Environmental Protection Agency (EPA)
World Health Organization (WHO)
Correct answer
Directorate General of Factory Advice Services and Labour Institutes (DGFASLI)
Which of the following statements is correct about engine valves?
The valve head is perfectly positioned at a 30-45 degree angle that fits ideally with the valve seat, creating a strong seal.
Poppet or mushroom valves are commonly found in two-stroke engines due to their remarkable characteristics.
The camshaft and its related parts control the ignition of the spark during engine ignition.
Conical shaped valves control the flow of gases entering the engine.
Correct answer
The valve head is perfectly positioned at a 30-45 degree angle that fits ideally with the valve seat, creating a strong seal.
A circular hole of radius 3 cm is cut out of a rectangular sheet of dimensions 12 cm × 10 cm. Find the remaining area. (Take ㅠ = 3.14)
95.86 cm²
91.74 cm²
100 cm²
75.74 cm²
Correct answer
95.86 cm²
What is the main function of the master cylinder in the braking system?
Absorbing vibrations from the road
Measuring the brake fluid level
Control engine speed
Builds up hydraulic pressure to operate the brakes
Correct answer
Absorbing vibrations from the road
Which of the following is an important safety measure during a power failure?
Ignoring the alarm system.
Ensuring that all machinery and electrical equipment are switched off.
Continuing to use appliances without verifying the electrical status.
Using candles for lighting.
Correct answer
Ignoring the alarm system.
Non-functional dimensions are ______.
derived directly from the values given on the drawing
derived from the values of the corresponding attributes of the drawing
not essential to the function of the space or component
essential to the function of the location or component
Correct answer
derived directly from the values given on the drawing
Why is it important for everyone to follow safety procedures in the workplace?
To increase overall production efficiency
To reduce risks and avoid accidents
To significantly reduce operating costs
To limit the need for constant supervision
Correct answer
To increase overall production efficiency
Which component operates the shift lever in a solenoid switch?
A solid core
The plunger
Electrical relay
Hold-in winding
Correct answer
A solid core
Which of the following methods helps in easy adjustment and disassembly in internal combustion engines, especially in compact engine bays, by providing a more efficient way to fit the connecting rod around the crankshaft journal?
Big end split orthogonally on the connecting rod
Big and split diagonally on the connecting rod
Small end union linearly on the connecting bar
Linear small end trimming on the connecting rod
Correct answer
Big end split orthogonally on the connecting rod
How do electronic mufflers achieve noise cancellation?
By physically blocking sound waves
By redirecting the sound waves
By producing opposite sound waves
By absorbing sound waves
Correct answer
By physically blocking sound waves
Which of the following verifies that a double-acting hydraulic cylinder can operate in both directions?
Air instead of hydraulic fluid
A large piston
Only one oil port
Two oil gates, one at each end
Correct answer
Air instead of hydraulic fluid
In some systems, the fuel feed pump is also known as the ______ pump.
pressure
cooling
electric
lift
Correct answer
pressure
Which of the following files is used for filing narrow grooves and angles greater than 10°?
Hemisphere file
Triangle-file
Square file
Knife edge file
Correct answer
Hemisphere file
Which of the following ingredients is used as an anti-wear additive in lubricating oil?
Barium (Ba)
Boron (B)
Copper (Cu)
Calcium (Ca)
Correct answer
Barium (Ba)
A circuit contains three resistors: 15 ohms, 10 ohms, and 20 ohms. The 15-ohm resistor is in series with a parallel combination of the 10-ohm and 20-ohm resistors. If a 24 V battery is connected to the circuit, find the total current flowing through the circuit.
1.1 A
2.1 A
0.1 A
3.1 A
Correct answer
1.1 A
The percentage of energy loss per unit deformation due to friction within the rubber, which produces heat in the rubber, and is measured in terms of temperature, is known as _____.
resilience
creep
stress-strain test
hysteresis
Correct answer
resilience
Which of the following steps for micrometer adjustment is incorrect?
Open the micrometer using the friction stop.
Find the set screw and loosen it.
Insert the large end of the wrench into the hole on the outer cylinder.
Use the reciprocating wheel to rotate the cylinder until the zeros align.
Correct answer
Open the micrometer using the friction stop.
What special tool is used to fit piston pins during piston pin assembly?
Hydraulic press
Copper drift
Arbor press
Piston ring compressor
Correct answer
Hydraulic press
In which part of the IC engine are the cylinder liners fitted?
Piston
Cylinder head
Frankcase
Cylinder block
Correct answer
Piston
Air temperature after compression stroke in CI engine __________.
Only the ambient temperature
The temperature becomes so high that it can ignite the fuel spontaneously, even without an external ignition source.
The temperature is high, but not high enough to ignite the fuel, so a spark plug is used to ignite the fuel.
The temperature is lower than the ambient temperature.
Correct answer
Only the ambient temperature
175 questions in the full paper