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Transmission System MCQ | 2021 Automobile MCQ|

 

 Automobile Transmission System


1. Why are the helical gears used commonly in transmission over spur gears?

(A) Low cost and high strength

(B) Low noise level and high strength

(C) Low cost and high economy

(D)Low noise level and high strength

  • Ans- B

2. Where is the clutch located

(A) Between transmission system and engine 

(B) Between transmission system and rear axle

(C) Between propeller and differential

(D) Between transmission system and differential

  • Ans- A

3.Which of the following is the coefficient of friction of the clutch plate

(A) 1.3

(B) 0.8

(C) 0.4

(D) 0.1

  • Ans- C 

4. Which of the following part of the cover assembly that holds pressure plate against the clutch plate?

(A) Spring

(B) Thrust Bearing

(C) Clutch plate

(D) friction plate

  • Ans- A

5. which device from following provides a smooth means of disengagement and engagement between the engine and the transmission system

(A) Gearbox

(B) Propeller Shaft

(C) Clutch

(D) Brake peadal

  • Ans- C 

6. Mechanical transmission can be of

(A) clutch, gearbox & live axle 

(B) Clutch, Gearbox & dead axle transmission

(C) Clutch, Gearbox & axle less transmission

(D) All of the above

  • Ans- D 

7. Main function of transmission system is to 

(A) Burn the fuel 

(B) Transfer the power from engine to the wheels

(C) To To vary the leverage between the engine and the driving wheel

(D) Both B & C

  • Ans- D 

8. Which is not the situation when clutch is disengaged ?

(A) When the vehicle is moving 

(B) at the time while  starting the vehicle 

(C) At the time of changing gear

(D) At the time of of stopping the vehicle when the engine is at the idle condition

  • Ans- A

9. What are the requirements of clutch

(A) Torque Transmission

(B) Gradual Engagement

(C) To absorb the shocks 

(D) Both a & b

  • Ans- A

10. Which is not a component of clutch

(A) Clutch plate

(B) Friction plate

(C) Pressure plate

(D) springs

  • Ans-   D


11. Which one is type of frictional material 
    (A) Millboard type 
    (B) Woven type
    (C) Molded Type
    (D) All of the above
  • Ans-  D 
12. Torque transmission depends upon 
    (A) Size of clutch plate
    (B)Coefficient of friction plate
    (C) Spring pressure
    (D) All of the Above
  • Ans-  D
13. Which type of clutch has high tendency to distort in transverse direction at high speed?
    (A) Coil spring clutch 
    (B) Multi plate clutch 
    (C) Single plate clutch
    (D) Diaphragm Clutch
  • Ans- A
14. Load deflection curve is linear in diaphragm clutch 
    (A) True 
    (B) False
  • Ans- B
15. Which type of clutch has non linear deflection curve?
    (A)Single plate 
    (B) Multi plate 
    (C)Diaphragm Clutch 
    (D) Coil spring clutch
  • Ans- C
16. Which of the following is not the component of Epicyclic gear box?
    (A) Sun Wheel 
    (B) Brake Band
    (C) Planet carrier
    (D) Friction lining 
  • Ans- D 
17. What could be the reason of clutch slip? 
    (A) Weak or broken clutch spring
    (B) Incorrect linkage adjustments
    (C) Both a & b
    (D) None
  • Ans-  C
18. Which component is connected to the input shaft of the flywheel
    (A) Turbine 
    (B) Housing shell
    (C) Impeller
    (D) None
  • Ans- C 
19. What we use to provide maximum torque at starting of vehicle from rest and  to gradually decrease torque as vehicle gains speed
    (A) Turbine
    (B) Torque Converter
    (C) Clutch
    (D) All of these
  • Ans- B
20. What is he formula for tractive resistance ?
    (A) Wind resistance + Gradient Resistance + Rolling Resistance 
    (B) Wind resistance- Gradient Resistance + Rolling Resistance
    (C) Wind resistance- Gradient Resistance * Rolling Resistance
    (D) Wind resistance- Gradient Resistance - Rolling Resistance
  • Ans- A
21. Live axle does not rotate with wheels, but the wheel rotates on it
    (A) True
    (B) False
  • Ans- B
22. Fluid flywheel is known as 
    (A) Hydraulic coupling
    (B) Pneumatic Coupling
    (C) Both a & b
    (D)None
  • Ans - A
23. What is used to transfer power from gearbox to differential?
    (A) Tie rod
    (B) Suspension
    (C) Pivot
    (D) Propeller shaft 
  • Ans - D
24. The metering valve is used to proportion the breaking effect between the front and the rear axle
    (A) True
    (B) False 
  • Ans- B 
25. Maximum intensity of pressure for multi plate clutch is given by 

           (A) c/r
    (B) c/r^2
    (C) c/r2
    (D) c/r1
  • Ans - A
26. Which type of  joints are used when the shafts are inclined?
    (A) Hinge joint 
    (B) Universal Joint
    (C) Ball and socket 
    (D) Pivot Joint
  • Ans- B 
27. The axis of the two shafts are intersecting and are at 25 degree to each other. These two shafts are connected by hook's joint. At which position of the drive shaft velocity ratio will be maximum?
    (A) 90⁰, 270⁰
    (B) 0⁰, 180⁰
    (C) 180⁰, 270⁰
    (D) 90⁰, 180⁰
  • Ans - B
28. Two piece propeller shaft requires one universal joint only
    (A) True
    (B) False
  • Ans- B 
29. ______ is used for a shaft that supports rotating element like wheels, drums or rope sleeves.
    (A) Spindle 
    (B)Axle
    (C) Shaft
    (D) None of the above
  • Ans- B
30. Frequency of axle used in torque transmission 
    (A) True
    (B) False
  • Ans- B

31.It is necessary for an axle to be ______ with respect to rotating element

(A) Stationary 

(B) Moving

(C) Stationary and moving 

(D) None of the above

  • Ans- C

32.Counter shaft is used as secondary shaft. True or False?

(A) True

(B) False

  • Ans- B

33. Shafts are subjected to_____ forces.

(A) Tensile 

(B) compressive

(C) Shear

(D) Breaking 

  • Ans- A