Name & ID Number: A
BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE, PILANI - HYDERABAD CAMPUS
SECOND SEMESTER 2021-2022
ME F484 Automotive Technology
Comprehensive Examination (Regular, Closed book)
Date: 11/05/2022 Weightage: 40%
Time: 9:00 – 12:00 Hrs Max. Marks: 80
Note:
Part A of the question paper carries 35 Marks. Duration 90 minutes.
In Section A, each correct answer fetches 1 Mark and each wrong answer invites -
0.25 Mark
In Section B, each correct answer fetches 1 Mark and wrong answer has no
weightage
Part A
Section A
Question Answer
1. The purpose of a cylinder head gasket is to
a. Prevent the combustion gases from leaking from the joint between the
cylinder block and the cylinder head
b. Prevent engine oil from going into combustion chamber
c. Removes impurities from cylinder head lubricating oil
d. None of the above
2. The drive shafts are connected to the differential and wheel hubs through
universal joints because the universal joints
a. Absorb the vibrations transferred from the surface of the road
b. Compensate for variations in the relative positions of the differential
and the wheels which result from bumpy road surfaces or other simi-
lar driving conditions.
c. Absorb any difference in speed between the left and right wheels
when the vehicle is turning
d. None of the above
3. The function of antilock brake system (ABS) is that is
a. Reduces the stopping distance
b. Minimises the brake fade
c. Maintains directional control during braking by preventing the wheels
from locking
d. Prevents nose dives during braking and thereby postpones locking of
the wheels
4. The function of oil-control rings is that it
a. Lubricates the cylinder wall by releasing oil from its hole
b. Keeps the cylinder wall lubricated by holding oil in its channel
c. Prevents engine oil from going into the combustion chamber and re-
turns excess lubricating oil off the cylinder wall through the return
holes in the piston to the oil pan
d. Maintains a seal and prevents escape of burned gases and oil leak-
age
5. The correct flow of power through the drive train is
a. Engine - driveshafts - clutch - mainshaft - countershaft - final driven
gear - wheels
b. Engine - clutch - mainshaft - countershaft - final driven gear - drive-
shafts - wheels
c. Engine - clutch - countershaft - mainshaft - final driven gear - drive-
shafts - wheels
d. Engine - mainshaft - countershaft - clutch - final driven gear - drive-
shafts - wheels
Name & ID Number: A
6. During braking, the brake shoe is moved outward to force the lining
against the
a. Wheel piston or cylinder
b. Anchor pin
c. Brake drum
d. Wheel rim or axle
7. The component in the radiator of an automobile that increases the boil-
ing point of water is
a. Drain plug
b. Water jacket
c. Vacuum valve
d. Pressure cap
8. One effect of detonation is
a. Delay in ignition
b. Loss of power
c. Overheating of engine
d. Overcooling of engine
9. The process of removing the burnt gases from the engine cylinder by the
fresh charge coming into the engine cylinder from the crank-case, is
known as
a. Cleaning
b. Priming
c. Scavenging
d. Detonation
10. Clutch facings are usually attached to the plate by
a. Steel rivets
b. Brass rivets
c. Aluminium screws
d. Steel screws
11. The ignition in a spark ignition engine takes place when the piston
a. Is exactly at the T.D.C. position on its compression stroke
b. Is approaching the T.D.C. position on its compression stroke
c. Is leaving the T.D.C. position on its compression stroke
d. Is approaching the T.D.C position on its exhaust stroke
12. The forced-fed lubrication system means that the oil is delivered to the
engine by
a. Gravity
b. The pressure created by the oil pump
c. Splashing action of the crankshaft
d. None of these
13. The commonly used antifreeze solution in automobiles is
a. Carbon disulphide
b. Ethylene glycol
c. Ammonium chloride
d. Freon-12
14. The most effective method of controlling S.I. engine exhaust emission is
by
a. Recirculating exhaust
b. Using catalytic converter
c. Using some additives in the fuel
d. None of these
15. If clearance volume of I.C. engines is increased, the compression ratio
will
a. Increase
b. Decrease
c. Remain constant
d. Be doubled
Name & ID Number: A
16. Which one of the following statement correctly describe the construction
of a bevel-gear type differential?
a. The drive shafts are splined to the differential carrier.
b. The left side gear and the differential carrier rotate in constant uni-
son.
c. The differential carrier houses differential pinion gears and side
gears, each pinion gear meshes with a different side gear.
d. The differential carrier houses differential pinion gears and side gears
17. The vapour lock problem may be caused in
a. Pipes
b. Feed pump
c. Float chamber
d. All of the above
18. In an electronic fuel injection, the maintenance cost is
a. low
b. high
c. nil
d. none of the mentioned
19. The following method provides the required air-fuel ratios in the eco-
nomic and power range
a. Idling system
b. Accelerating pump
c. Metering pin method
d. Pressure reduction method
20. The inputs used in electronically controlled diesel fuel injection systems
are :
a. Turbocharger boost pressure
b. Intake air mass flow rate
c. All of the mentioned
d. None of the mentioned
Section B
Name the part marked in the Figure
21. Identify the component shown below
22. The part pointed by the arrow
Name & ID Number: A
23. The part pointed by the arrow 24. The part marked by the ellipse
25. The part marked by the circle
26. Name any 10 parts marked in the 1
following figure [10 Mark]
2
10
Name & ID Number: A
