Automobile And Mechanical Mock Test! Trivia Questions Quiz
The trivia questions quiz below is an automobile and mechanical mock test! Automobiles are very complex machines and need a lot of things to work perfectly together. If you want to test out what you know about them, the quiz will be perfect for you. Do give it a try and get to see how well you will do.
- 1.The condition that causes vapor locking in a brake system is
- A.
Overheating of the fluid due to frequent brake application
- B.
overcooling of the brakes during high speed driving
- C.
Keeping the vehicle without use for an extended period
- D.
An excessively high engine speed on a downhill road
- 2.The motion of the cam is transferred to the valves through
- A.
Rocker arms
- B.
Pistons
- C.
Camshaft pulley
- D.
Valve stems
- 3.Which of the following symptom is caused as a result of brake disc run out?
- A.
Ineffectiveness of the brakes
- B.
Judder during braking
- C.
Localized wearing of the brake pads
- D.
The rapid wearing of the brake pads
- 4.If the air-fuel mixture in a spark-ignition engine is too rich, then the air-fuel ratio is about
- A.
17:1
- B.
15:1
- C.
10:1
- D.
13:1
- 5.If the air-fuel mixture ignites before the spark takes place at the spark plug, the condition is called
- A.
Detonation
- B.
Ignitation
- C.
Pre-ignition
- D.
Rumble
- 6.The purpose of adding pigment to the paint is that it
- A.
Optimises the viscosity of paint
- B.
Makes paint film hard
- C.
Gives colour and filling up effect to the paint
- D.
None of the above
- 7.In a four-speed four-stroke Diesel engine, the intake valve
- A.
Opens at T.D.C. and closes at B.D.C
- B.
Opens at 20° before T.D.C. and closes at 35° after B.D.C
- C.
Opens at 10° after T.D.C. and closes at 20° before B.D.C.
- D.
None of the above
- 8.The purpose of transmission in an automobile is
- A.
To vary the speed of automobile
- B.
To vary the torque at the wheels
- C.
To vary the power of automobile
- D.
None of these
- 9.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
- 10.The basic function of the suspension is to
- A.
Absorb vibration and impact forces from the road surface
- B.
Ensure that the steering wheel can deliver a suitable amount of steering force
- C.
Ensure that wheel alignment is not disturbed during driving
- D.
Automatically correct the effects of over steering
- 11.The included angle is the sum of the
- A.
Camber and castor
- B.
Castor and S.A.I
- C.
Camber and S.A.I.
- D.
Camber and toe-in
- 12.Segmental chips are formed during machining
- A.
Mild steel
- B.
Cast iron
- C.
High speed steel
- D.
High carbon steel
- 13.If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is
- A.
Conical locator
- B.
Cylindrical locator
- C.
Diamond pin locator
- D.
Vee locator
- 14.A broach has
- A.
Roughing teeth
- B.
Semi-finishing teeth
- C.
Finishing teeth
- D.
All of these
- 15.Specify the sequence correctly
- A.
Grain growth, recrystallisation, stress relief
- B.
Stress relief, grain growth, recrystallization
- C.
Stress relief, recrystallisation, grain growth
- D.
Grain growth, stress relief, recrystallization
- 16.Which of the following material has maximum ductility?
- A.
Copper
- B.
Nickel
- C.
Aluminium
- D.
Mild steel
- 17.The heat treatment process used for softening hardened steel is
- A.
Carburising
- B.
Normalising
- C.
Annealing
- D.
Tempering
- 18.In a Kaplan turbine runner, the number of blades are generally between
- A.
2 to 4
- B.
4 to 8
- C.
8 to l6
- D.
16 to 24
- 19.Which of the following turbine is preferred for 0 to 25 m head of water?
- A.
Pelton wheel
- B.
Kaplan turbine
- C.
Francis turbine
- D.
None of these
- 20.The overall efficiency of a reaction turbine is the ratio of
- A.
Power produced by the turbine to the energy actually supplied by the turbine
- B.
Actual work available at the turbine to the energy imparted to the wheel
- C.
Workdone on the wheel to the energy (or head of water) actually supplied to the turbine
- D.
None of the above
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