Name the scientist who discovered bacteria ?
- ((a))
Robert Koch
- ((b))
James Chadwick
- ((c))
Eugen Goldstein
- ((d))
A V Leeuwenhoek
Show Answer
Robert Koch
175 questions · 150 minutes · with answers · free
Name the scientist who discovered bacteria ?
Robert Koch
James Chadwick
Eugen Goldstein
A V Leeuwenhoek
Robert Koch
If a body has a specific gravity of less than 1, then it will float in/on ___________.
air
water
liquids
mercury
air
Which of the following options does not have an SI base unit?
Amount of substance
Frequency
Luminous intensity
Electric current
Amount of substance
How many medals did India win in Rio Olympics, 2016?
3
4
2
5
3
It is mainly due to the gravitational effect of the __________ on the rotating earth that the level of water in the sea rises and falls.
Venus
Mercury
Moon
Sun
Venus
Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V battery. Find the current in the 6Ω resistor.
3.5 A
0.5 A
2.5 A
3.5 A
Substances that are broken down by biological processes are said to be _________.
reusable
non-biodegradabl
non-reusable
biodegradable
reusable
A software program that has been developed to harm other computers is called a/an _________.
server
LAN
malware
operating system
server
Kuchipudi has its roots in which Indian State?
Arunachal Pradesh
Kerala
Andhra Pradesh
Himachal Pradesh
Arunachal Pradesh
Which Indian cricketer received the Padma Bhushan in 2018?
MS Dhoni
Virat Kohli
Sachin Tendulkar
Saurav Ganguly
MS Dhoni
JPEG stands for __________.
Joint Program Experts Group
Joint Program Executing Group
Joint Photographic Experts Group
Joint Program Experimental Group.
Joint Program Experts Group
Two resistors, one of 12 Ω and the other of 24 Ω are connected in parallel. This combination is connected in series with a 22 Ω resistor and a 12 V battery. The current in the 12 Ω resistor is __________.
(8/15) A
(2/15) A
(6/15) A
(4/15) A
(8/15) A
RK Narayan is famous for his book ___________.
The Room on the Roof
Two Livers
Malgudi Days
A suitable Boy
The Room on the Roof
_________ protection must be worn whenever noise levels exceed the noise exposure standard.
Hearing
Head
Eye
Foot
Hearing
A wire of length 1 and radius r has a resistance R. The resistance of another wire made of the same material but having half its length and half its radius will be.
4R
R/2
2R
R
4R
Safety boots or shoes must be worn in designated areas to protect your _______ from falling objects.
eye
ear
head
feet
eye
A cylindrical wire of length L and radius r has a resistance of R. The resistance of another wire of the same material but thrice its length and one-third its radius will be __________.
27R
9R
R
3R
27R
If a body is NOT homogeneous, then its density is a function of its ___________.
pressure
acceleration
position
velocity
pressure
Two resistors of 10Ω and 20 Ω area connected in series and this combination is connected across a 30 V supply voltage. Find the voltage across the 10 Ω resistor.
20 V
10 V
5 V
15 V
20 V
Which one of these is a harvest festival?
Teej
Janmashtami
Deepawali
Onam
Teej
86°F is equal to __________
20°C
30°C
34°C
10°C
20°C
Where is the Headquarters of UNESCO located?
New York City
Geneva
Paris
Washington DC
New York City
Name of the painter of famous painting, ‘Mahishasura’.
MF Hussain
Amrita Sher-Gil
Raja Ravi Verma
Tyeb Mehta
MF Hussain
What is the work that needs to be done to increase the speed of a 1 kg ball from 2 m/s to 4 m/s?
8 J
10 J
6 J
12 J
8 J
The Ajanta Caves in Maharashtra feature paintings and sculptures that depict __________ tales.
Arabic
Islamic
Buddhist
Maratha
Arabic
The volume of a given amount of water ________ between 0°C to 4°C.
is zero
decreases
remains constant
increases
is zero
Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V bettery. Find the power supplied by the battery.
10 W
18 W
16 W
14 W
10 W
An object weighs X units on the earth. If we take the same object to the moon, its weight there will be ________.
zero
less than X
equal to X
more than X
zero
A body starts from rest. Its displacement is proportional to _________ when its acceleration is constant.
time squared
velocity
work
time
time squared
A source of voltage V maintains a current i in a circuit. The energy supplied to the circuit by the source in time t is __________.
Vit
1/Vit
Vi/t
V/it
Vit
Who was the first governor of the Reserve Bank of India?
Sir James Braid Taylor
KR Puri
HVR Iyengar
Sir Osborne A Smith
Sir James Braid Taylor
A car covers 400 m in 20 seconds. Find the average speed (in km/hr) of the car.
72
124
108
36
72
If sin θ = 15/17, then cot θ = ?
In an examination, the highest score and the lowest score are different by 55 and the higher one was 9/4 times the lower one. Find the lowest score.
40
36
44
48
40
A number is as much greater than 50 as it is lesser than 84. What is the number?
65
66
68
67
65
If , then x is equal to:
175
125
136
150
175
A got Rs. 80 as his share of profit where the total profit was Rs. 240 and the ratio of profit distribution between A and B was x : 2. What is the value of x?
1
4
2
5
1
What is the median of 8, 5, 7, 9, 11, 6, 10?
9
8
10
7
9
If 5050 × 0.5x = 25250, then 2505 ÷ x2 = ?
0.2505
25.05
2.505
250.5
0.2505
An article of marked price Rs. 12000 was sold. Had a discount of 15% been offered, a profit of 2% would have been made. What was the cost price?
Rs. 10,200
Rs. 10,000
Rs. 11,000
Rs. 10,800
Rs. 10,200
A sum of Rs. 2,000 was spent in buying a pair of trousers. The sum spent was 2/5th of the total money Shashi had with her. How much was the total money she had?
Rs. 4,000
Rs. 4, 250
Rs. 4, 750
Rs. 5,000
Rs. 4,000
A machine was bought for Rs. 1,500 and a repairing charge of Rs. 100 was paid afterwards. At what price should it be sold to gain a profit of 25%?
Rs. 2,040
Rs. 1,960
Rs. 2,000
Rs. 1, 920
Rs. 2,040
In angular measurement, one radian is equivalent to ________ degree (approximately).
65.27
57.27
90
180
65.27
A and B can do a work in 15 days. B and C can do the work in 20 days and A and C can do the work in 10 days. In how many days will they together completed the work?
10.67 days
10.91 days
10.71 days
9.23 days
10.67 days
Pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. Both A and B are opened for 4 minutes and then A is closed. How much extra time will B take to fill the tank completely?
minutes
7 minutes
minutes
6 minutes
minutes
A can do 2/5 of a work in 10 days. B can do ½ of the some work in 10 days. They worked together for 5 days and then A left. In how many days will B finish the remaining work?
8
10
11
9
8
Reflection of point (-2, -6) on the Y-axis is:
(2, 6)
(-6, -2)
(-2, 6)
(2, -6)
(2, 6)
The pie chart shows the breakup in percentage of the various expenses of a Company. Study the diagram and answer the following question.
What is the interest expense if total expenses is Rs. 25000.
Rs. 2, 500
Rs. 1, 800
Rs. 9, 000
Rs. 5, 000
Rs. 2, 500
A motorcycle travelled 1000 m at 36 km/hr. Find the time (in seconds) taken by the motorcycle to cover this distance.
300
100
400
200
300
A 4-digit number 1xy7 is divisible by 11. What is the value of x - y?
-8
-2
-4
-6
-8
Tap M and N can together fill a cistern in 48/13 minutes. N alone can fill it in 6 minutes. How much time will M alone take to fill the cistern?
9.6 minutes
9 minutes
9.4 minutes
8.6 minutes
9.6 minutes
What is the curved surface area of a hemisphere whose radius is 7 cm? (take π = 22/7)
616 cm2
154 cm2
308 cm2
924 cm2
616 cm2
An airplane flies at the speed of 50 m/s. How much distance (in km) will it cover in a flight of 5 hours?
895
850
880
900
895
What is the distance between the points (4, 3) and (3, -2)?
6
5
sec 45° - tan 60° = ?
What is the least number which when doubled is perfectly divisible by 7, 12 and 15?
420
210
214
220
420
A sum of Rs. 10,000 amounts to Rs. 11, 449 in 2 years, when the interest is compounded annually. The interest rate percent per annum is:
6%
1%
7%
8%
6%
The ages of X and Y are in the ratio 4 : 7. Three years earlier, the ratio of their ages was 1 : 2. What is the difference between their current ages (Y - X)?
3
6
9
7.5
3
What is 80% of 50% of 90?
30
34
32
36
30
Choose the figure that is different from the rest.





A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
1.14, 1.28, 1.42, ?, 1.70, 1.84
1.56
1.54
1.68
1.62
1.56
Two planes E and F start flying from the same point. E flies 7 km west, then turns to its left and flies 15 km. Meanwhile F flies 11 km east and turns right and flies 15 km. Where is F with respect to E?
F is 18 km west of E
F is 4 km east of E
F is 18 km east of E
F is 4 km west of E
F is 18 km west of E
Given below are some letters, that each of these letters has a corresponding number. Select the combination of numbers from the option so that the jumbled letters arranged accordingly will form a meaningful English word.
H T R U O A
1 2 3 4 5 6
6, 4, 2, 1, 5, 3
3, 4, 5, 2, 1, 6
1, 6, 2, 4, 5, 3
2, 1, 5, 3, 4, 6
6, 4, 2, 1, 5, 3
I, J, K and L are sitting in a row. L and I are sitting next to each other and I and K are the ends. Who is sitting next to J?
Only K
L and I
K and L
Only L
Only K
Select the option that is related to the third term in the same way as the second term is related to the first term.
Tall : Short ∷ Glad : ?
Sad
Happy
Emotion
Smile
Sad
If, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘ then find the value of the following expression.
9 × 3 + 6 ÷ 2 = ?
20
10
12
16
20
If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?
I – J + F * H
I + J - F * H
I – J * F + H
I * J - F + H
I – J + F * H
Which of the following Venn diagrams best represents the relationship between Indians, doctors and women?





Given below are two statement, followed by two conclusion, I and II. You have to consider the statement to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow(s) from the given statements.
Statement 1: No quadrilaterals are polygons.
Statement 2: All polygons are rhombuses.
Conclusion I: Some rhombuses are quadrilaterals.
Conclusion II: Some rhombuses are polygons.
Neither I nor II follows
Only conclusion II follows
Only conclusion I follows
Both I and II follow
Neither I nor II follows
Which two signs should be interchanged to make the given equation correct?
9 ÷ 3 + 8 × 2 – 15 = 2
× and -
÷ and -
× and -
What is the minimum number of lines required to make the given image?

13
12
10
9
13
A series is give, with one term missing. Choose the correct alternative from the given ones that will complete the series.
OOOOOX, OOOOXX, OOOXXX, OOXXXX, ?
XXXXXX
OOXXXXX
OOXXXX
OXXXXX
XXXXXX
If C $ D means C is daughter of D, C & D means C is mother of D and C % D means C is son of D, then what does W $ X & Y % Z mean?
Z is wife of W
Z is mother of W
Z is father of W
Z is daughter of W
Z is wife of W
Given below is a question, followed by two arguments, I and II. You have to decide which of the given arguments, if any, is a strong argument, with respect to the question.
Question: Should advertisements be banned on television?
Argument I: Yes, advertisements are immoral.
Argument II: No, advertisements bring in revenue which helps reduce cost for viewers.
Only argument II is strong.
Only argument I is strong.
Neither I nor II is strong.
Both I and II are strong.
Only argument II is strong.
Select the option that is related to the third number in the same way as the second number is related to the first number.
-9/11 : 11/9 ∷ 13/2 : ?
3/7
2/13
-2/13
-7/3
3/7
Given below is a statement followed by two assumption numbered I and II. You have to decide which of the assumptions is/are implicit in the statement.
Statement: The human body produces Vitamin D when exposed to sunlight.
Assumption I: The human body will have Vitamin D even if it is not consumed via food.
Assumption II: A large portion of the global population suffers from Vitamin D deficiency.
Both I and II are implicit
Only assumption II is implicit
Neither I nor II is implicit
Only assumption I is implicit
Both I and II are implicit
A salesperson starts from his office and drives 2 km east, then turns north and drives 7 km, then turns to his right and drives 6 km, then turns south and drives 7 km. Where is he now with respect to his starting position?
8 km east
4 km west
4 km east
8 km west
8 km east
Unscramble the letters in the words given below and find the odd word out.
FLOW
ILNO
ERTIG
WCO
FLOW
Find the odd group of letters from the given alternatives.
EFG
PQR
VWX
HJL
EFG
Choose the figure that is different from the rest.





In a code language, 295 means ‘water is liquid’, 549 means ‘oil is liquid’ and 824 means ‘oil on water.’ Find the code for ‘on’.
4
2
8
5
4
In the following figure, square represents Chinese, triangle represents dancers, circle represents male and rectangle represents architects. Which set of letters represents dancers who are male?

DEIG
DEF
IGH
GEF
DEIG
The abbreviation AC in an engineering drawing stands for __________.
Across Corners
Aerial Cut
Attached Circle
Air Conditioning
Across Corners
Greater the value of _______ of a material, the more rapidly it will conduct heat.
melting point
latent heat
regelation
thermal conductivity
melting point
The effort applied to move a load is 15 units and the mechanical advantage is observed to be 3. Find the load.
5 units
3 units
15 units
45 units
5 units
What is the unit's digit in 366 × 641 × 753
8
3
6
7
8
If the width of a standard engineering drawing sheet is 841 mm, then its length would be ________ mm.
1189
1250
1000
1216
1189
A 200 g block of iron was heated from 30°C to 60°C. How much heat was transferred to the block (specific heat of iron is 450 Jkg-1K-1)?
6000 J
27 J
2700 J
270 J
6000 J
If a machine overcomes a load 'L' and the distance travelled by the load is 'Ld', the work done by the load will be __________.
L × Ld
L × Ld
A brass rod (thermal conductivity 109 J/s m K) has an area of cross section 0.04 m2 and length 20 cm. If the two end of the rod are maintained at a temperature difference of 200°C, the rate of heat flow through the rod is ________.
3.42 kJ/s
2.32 kJ/s
4.36 kJ/s
5.80 kJ/s
3.42 kJ/s
The effort in a class 1 lever is in __________ direction(s).
three
multiple
two
one
three
The velocity ratio of a simple machine is the ratio of distance traveled by the ________ to the distance traveled by the ________ in the machine.
load; load
effort; load
load; effort
effort; effort
load; load
If straight lines are drawn from various points on the contour of an object to meet a plane, the figure obtained on the plane is called the _______ of the object.
development
dimensioning
projection
animation
development
A _______ is a theoretical exact plane, axis or point location that GD & T or dimensional tolerances are referenced to.
flange
frame
section
datum
flange
Molar specific heat capacity of a substance is _________.
In engineering drawing, the letters LH signifies __________.
Level Hide
Left Hand
Low Heat
Limit of Height
Level Hide
Identify the material having high coefficient of volume expansion.
Brass
Alcohol
Glass
Water
Brass
An object starts from rest at x = 0 m and moves with a constant acceleration of 1.6 m/s2 along the x-axis. During its journey from x = 12.8 m to x = 20.0 m, its average velocity will be __________.
7.2 m/s
3.6 m/s
8.8 m/s
2.4 m/s
7.2 m/s
You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.
Question: What was the discount percent offered on the soap by the store?
Statements:
I) The store is giving 1 soap free on purchase of three.
II) Rs. 10 discount is offered on purchase of soap worth 36.
II alone is sufficient while I alone is not sufficient
I alone is sufficient while II alone is not sufficient
Neither I nor II is sufficient
Either I or II is sufficient
II alone is sufficient while I alone is not sufficient
Identify the material having low coefficient of volume expansion
Iron
Mercury
Brass
Aluminium
Iron
SAE stands for __________.
Society of American Engineer
Society of Atomic Energy
Society of Automobile Industry
Society of Automobile Engineer
Society of American Engineer
The meaning of calibration of injection pump is that what a plunger supply in full quantity to cylinders. Choose the best option among the following.
Power
Fuel
Compression
Pressure
Power
A pressure relief valve is fitted in between a/an ___________.
oil pump and filter
oil strainer and filter
oil strainer and oil pump
main oil gallery and filter
oil pump and filter
Pre-combustion chambers are used in which of the following?
Direct injection (DI) engines
Indirect injection (IDI) engines
Multi-point fuel injection (MPFI) engines
Common rail direct injection (CRDi) engines
Direct injection (DI) engines
Generally the piston rings are made of __________.
cast iron
wrought iron
high carbon steel
medium carbon steel
cast iron
Which filtering material is used in a secondary fuel filter?
Plastic
Felt
Cloth
Paper
Plastic
Which type of regulator is used in an alternator?
Cut out regulator
Sealed regulator
Open type
Charging regulator
Cut out regulator
A secondary filter of a diesel fuel system is made by which material?
Cotton
Brass
Paper
Bronze
Cotton
A turbo charger is driven by whom?
Crank pulley
Exhaust gas pressure
Cam shaft
Gear box
Crank pulley
A wet type air cleaner is also known as a/an __________.
oil bath air cleaner
paper type air cleaner
cloth type air cleaner
dry type air cleaner
oil bath air cleaner
Allen key is also known as a/an ___________.
hollow set screw wrench
open end wrench
pipe wrench
adjustable wrench
hollow set screw wrench
A four-stroke cycle engine produces one power stroke in ____________.
four revolutions of a crankshaft
two revolutions of a crankshaft
three revolutions of a crankshaft
one revolution of a crankshaft
four revolutions of a crankshaft
Valve spring tension test is conducted by which equipment?
Spring tension tester
Scale
Hydraulic press
Torque wrench
Spring tension tester
The exhaust manifold is connected to the cylinder head of an engine by ________.
a cork sheet gasket
a copper gasket
a fibre gasket
an asbestos gasket
a cork sheet gasket
Connecting rod is made of which material?
Aluminium
Cast iron
Iron
Forged steel
Aluminium
The material of an inlet valve is __________.
chrome vanadium steel
silicon chrome alloy
stainless steel
nickel chromium alloy steel
chrome vanadium steel
What that period is called in which both, the exhaust valve and the inlet valve remain open?
Open lap
Over lap
Closed lap
Over sap
Open lap
The simplest type of a seam is a ___________.
double seam
double groove seam
groove seam
lap seam
double seam
In an alternator, which part converts AC to DC supply?
Commutator
Pole shoe
Diode rectifier
Carbon brush
Commutator
The firing order of a four-cylinder engine is ____________.
1 - 3 - 2 - 4
1 - 3 - 4 - 2
1 - 2 - 3 - 4
1 - 4 - 2 - 3
1 - 3 - 2 - 4
Clutch is a part of:
the lubrication system
the transmission system
the exhaust system
the suspension system
the lubrication system
Which type of thermostat is most commonly used in modern automobiles?
Bellow type
Bi-metal type
Wax type
Plunger type
Bellow type
Opening and closing of valves in relation to piston movement is called ________.
valve relacing
valve grinding
valve lapping
valve timing
valve relacing
What is the full form of CRDI?
Common Rail Duo Injection
Common Rail Direct Injection
Common Rail Dual Injection
Common Rail Digital Injection
Common Rail Duo Injection
In a turbocharger, the turbine wheel housing is connected to:
the flywheel side
the front of the engine block
the intake manifold
the exhaust manifold
the flywheel side
The two screws fitted over the fuel filter are called _________.
knurling screws
bleeding screws
cutting screws
feeding screws
knurling screws
How a turbine is rotated in a turbo-charger?
By Exit gases from muffler
By Exit gases from tail pipe
By exhaust gas of exhaust manifold
By gases from catalytic converter
By Exit gases from muffler
What is the task of an EGR valve?
To reduce HC
To reduce NOx
To reduce CO2
To reduce N2
To reduce HC
The ratio of total volume of cylinder to its clearance volume is known as _________.
compression ratio
clearance volume
swept volume
compression pressure
compression ratio
Inline engines give better balancing and more uniform ___________.
torque
efficiency
energy
speed
torque
Which type of oil pump is used in stationary diesel engines?
Rotary type
Plunger type
Vane type
Gear type
Rotary type
In which type of a lubrication system, oil pump lifts the oil from a sump and passes it into a filter and then into the main gallery?
Petrol mix lubrication
Full flow
Bypass
Gravity feed lubrication
Petrol mix lubrication
Ring expander tool is used for fitting a __________.
piston ring
connecting rod
crankshaft
piston
piston ring
How are exhaust gases emitted out of the oil sump in diesel engines?
Through the oil cooler
Through the oil filter
Through the air cleaner
Through the breather pipe
Through the oil cooler
On which angle a valve is generally placed on head?
30°
45°
15°
90°
30°
In the common rail direct injection system, the injectors are opened and closed by:
a reed valve
a CB point
a poppet valve
a solenoid valve
a reed valve
The time before which the valve opens is called __________
Lapping
Valve lead
Over lap
Valve gap
Lapping
A valve seat is ground by which equipment?
Surface grinder
Portable grinder
Grinder
Special type of valve seat refacer
Surface grinder
The distance between the centre line of front & rear wheels from side view is _________.
Wheel base
Rear overhung
Wheel track
Front Overhung
Wheel base
When a piston is at BDC, the clearance between cylinder head to piston head is known as _________
clearance volume
piston displacement
swept volume
total volume
clearance volume
When a valve stays open late it is known as ________.
valve overlap
valve lag
valve lead
valve duration
valve overlap
A _______ is used to check the specific gravity of a battery.
voltmeter
multimeter
hydrometer
cell tester
voltmeter
In a water cooling system the thermostat opens at _______
100° C
90° C
85° C
91° C
100° C
For cleaning the dirt on a welding bead, which tool is used?
Chipping hammer
Brush
Painting brush
Hammer
Chipping hammer
What is the name of the middle part of a connecting rod which connects the head and the big end?
Neck
Shank
Tank
Mack
Neck
Which engine has a maximum fuel efficiency?
Radial engine
Inline engine
'V' engine
Opposed engine
Radial engine
Which type of starting system needs compressed air?
Air starting method
Manual starting method
Gasoline engine starting method
Electric starting method
Air starting method
A cylinder block manufactured in a single piece is called a ___________.
Inverted Cylinder
Try cylinder
Monoblock cylinder
Flat Cylinder
Inverted Cylinder
Which tool should be used for fitting a ring in a piston?
Ring expander tool
Pipe wrench
Ring screwdriver
Plier
Ring expander tool
A cylinder block of a two wheeler engine is generally made up of which metal?
Cast iron
Copper
Aluminium
Iron
Cast iron
Where is a thermostat valve connected in a pressured water cooling system?
Water jacket
Water outlet elbow
Water pump inlet
Below the radiator
Water jacket
Where is the temperature gauge located in a vehicle, which indicates the temperature of the engine's coolant or water?
Steering
Radiator
Engine
Dashboard
Steering
In a diesel engine during the exhaust stroke, what is emitted out of the tail pipe?
NOx
CO2
CO
N2
NOx
The small hole present on the body of a pintaux nozzle is called:
the main hole
the sub-hole
the auxiliary hole
the vibrated hole
the main hole
In which of the following circuits, a solenoid switch is used?
Charging circuit
Electrical circuit
Starting circuit
Ignition circuit
Charging circuit
Quantity of fuel and its timing is controlled by ___________.
Feed Pump
Oil pump
Fuel Injection Pump
AC mechanical fuel pump
Feed Pump
Compression ratio of a diesel engine is _______
24 ∶ 1 to 30 ∶ 1
15 ∶ 1 to 19 ∶ 1
10 ∶ 1 to 12 ∶ 1
16 ∶ 1 to 24 ∶ 1
24 ∶ 1 to 30 ∶ 1
Which of the following is NOT a property of a lubricant?
Ash point
Flash point
Pour point
Fire point
Ash point
Which type of fuel feed pump is used in conventional inline fuel injection pumps?
Gear type
Plunger type
Vane type
Electrical type
Gear type
Which metal is a radiator generally made up of ?
Steel
Copper
Iron
Cast iron
Steel
A commutator is made of which of the following?
Aluminium segments
Iron segments
Brass segments
Copper segments
Aluminium segments
The portion which joins a main journal and a crankpin is called the ________.
web
balance weight
throw
crank Journal
web
Compression ratio of a petrol engine is _______
30 ∶ 1
24 ∶ 1
78 ∶ 1
8 ∶ 1
30 ∶ 1
Which part of a sump in an engine indicates the level of the oil?
Feeler gauge
Plastic gauge
Dip stick
Oil pressure gauge
Feeler gauge
How much more power is available in an engine after fitting the turbo super charger?
50% to 60%
20% to 30%
10% to 15%
25% to 40%
50% to 60%
Compression pressure of a diesel engine is _______
200 to 400 PSI
150 to 180 PSI
350 to 450 PSI
450 to 600 PSI
200 to 400 PSI
The gap between the inside diameter of an installed bearing and the outside diameter of the crankshaft journal is called ___________.
Valve clearance
Part clearance
Oil clearance
Tappet clearance
Valve clearance
Valve clearance is also called as _________.
tappet lifting
valve lifter
tappet
tappet clearance
tappet lifting
During the compression stroke in four-stroke cycle engine _________.
both the valves close
inlet opens, exhaust closes
both the valves open
exhaust opens and inlet closes
both the valves close
How many compression rings are fitted in a piston for proper functioning of a compression stroke?
6
2
4
8
6
Main function of a lubricant is to _________.
maintain wetness between two moving parts.
To improve the aesthetic look of the parts
To increase the hardness of the parts with which it is in contact
minimise the friction between two moving parts.
maintain wetness between two moving parts.
The brake horse power of an engine is measured by which equipment?
Dynamometer
Multimeter
Voltmeter
Ammeter
Dynamometer
The distance travelled by a piston from TDC to BDC is called __________.
cubic capacity
clearance volume
swept volume
stroke
cubic capacity
Galvanized iron sheet is also called as a _________.
black iron sheet
tin sheet
brass sheet
GI sheet
black iron sheet
The roller of a feed pump is operated by a/an __________.
crank pin
crankshaft
camshaft
eccentric cam of an FIP camshaft
crank pin
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