Automobile Engineering Sample Questions and Answers

1. VIN stands for :
(A) Vehicle Information Numerals
(B) Vehicle Identification Numerals
(C) Vehicle Identification Number
(D) Vehicle Index Number

2. In metric system pressure is measured in:
(A) Pascal
(B) PSI
(C) Erg
(D) Newton per metre

3. Which of the following is not a cutting tool?
(A) Handfile
(B) Drill
(C) Chisel
(D) Screw driver

4. Flaring operation is usually done on :
(A) Metal tube
(B) Metal channel
(C) Rubber hoses
(D) Flat plates

5. Bench vice is a :
(A) Holding tool
(B) Filing tool
(C) Marking tool
(D) None of the above

6. The unit of acceleration is:
(A) m/s
(B) m2/s
(C) ms
(D) m/s2

7. Youngs modulus is:
(A) Shear stress/Shear strain
(B) Volumetric strain/Volumetric stress
(C) Tensile stress/Tensile strain
(D) Shear strain/Shear stress

8. Co-efficient of friction is equal to:
(A) Sine angle of friction
(B) Limiting friction/ Normal reaction
(C) Normal reaction / Limiting friction
(D) None of the above

9. Megger is an instrument used to measure:
(A) Resistance
(B) Voltage
(C) Current
(D) temperature

10. Scissors is an example of :
(A) First order lever
(B) Second order lever
(C) Third order lever
(D) Curved lever

11. Factor of safety is equal to:
(A) Ultimate stress/cross section area
(B) Ultimate load/cross section area
(C) Stress/Strain
(D) Ultimate stress/working stress

12. The quantity of heat required to raise the temperature of unit mass of substance through 1°C is called:
(A) Latent heat
(B) Fahren heat
(C) Specific heat
(D) None of the above

13. The function of waste gate in turbo charger is to:
(A) limit boost pressure
(B) increase boost pressure
(C) to cool the air
(D) reduce emiasion

14. Which of the following is not a part of waste gate assembly?
(A) Diaphragm
(B) Diaphragm apring
(C) Valve
(D) Turbine

15. Morse test is not applicable to :
(A) Four stroke multi cylinder engine
(B) Multi cylinder petrol engine
(C) Multi cylinder Diesel engine
(D) Four stroke single cylinder engine

16. Prony Brake is used to measure :
(A) IP
(B) BP
(C) FP
(D) none of the above

17. The chemical name of R-134 a is:
(A) Dichloro difluro methane
(B) Tetra fluro methane
(C) Chloro fluro methane
(D) Carbon tetra fluoride

18. The toner ring (Tone ring) is used in:
(A) Torque converter
(B) Lubrication system
(C) ABS
(D) Air conditioning system

19. The type of stresses mainly developed in tappet during valve opening is :
(A) Tensile stress
(B) Compressive stress
(C) Shear stress
(D) Torsional stress

20. In full floating type rear axle driving torque is carry by :
(A) Axle shaft
(B) Axle casing
(C) Bearing
(D) Bearing and axle casing

21. Thermosyphen cooling system works due to:
(A) Pump force
(B) Humidity difference of system
(C) Difference in density of coolant
(D) None of the above

22. Wankel engine operates upon :
(A) Brayton cycle
(B) Diesel cycle
(C) Otto cycle
(D) Atkinson cycle

23. Firing order of a four stroke four cylinder in line engine is 1-3-4-2. During operation, if second cylinder is in compression stroke what process will progressing in first cylinder
(A) Suction
(B) Compression
(C) Power
(D) Exhaust

24. The electrolyte used in lead acid battery is :
(A) PbO2
(B) Pb.O
(C) PbSO4
(D) H2SO4

25. The angle through which the wheel has to turn to sustain the side force is called :
(A) Camber angle
(B) Slip angle
(C) Rake angle
(D) None of the above

26. Break away capsule is a safety device associated with:
(A) Brake
(B) Airbag
(C) Engine
(D) Steering column

27. The king pin inclination is usually
(A) 2°
(B) 15°
(C) 4°
(D) 8°

28. Which of the following is not an insulator?
(A) Mica
(B) Silver
(C) Rubber
(D) Porcelain

29. Delco eye is associated with :
(A) Battery
(B) Shocke absorber
(C) Leaf spring
(D) Navigation system

30. The total distance covered by vehicles is recorded in :
(A) Speedometer
(B) Tachometer
(C) Odometer
(D) None of the above

31. Joule – Thomson coefficient for an ideal gas having equation Pv =RT is :
(A) Unity
(B) Infinite
(C) 0.5
(D) Zero

32. Cycle consisting of two isothermal and two isobaric processes is :
(A) Ericsson
(B) Joule
(C) Stirling
(D) Otto

33. Axial thrust will be negligible in case of :
(A) helical gears
(B) spiral gears
(C) herringbone gears
(D) bevel gears

34. Coarse grained steels :
(A) are very tough
(B) are less tough
(C) do not have a tendency to distort
(D) are lighter

35. A critical path has :
(A) zero slack
(B) minimum slack
(C) maximum slack
(D) infinite slack

36. Energy loss due to friction in laminar flow can be calculated either using Darcy’s equation or Hagen – Poiscuille equation where friction factor is ;
(A) 32/Re
(B) 64/Re
(C) 16/Re
(D) none of these

37. The shaft vibrations at nodes are :
(A) Maximum
(B) Zero
(C) Minimum
(D) unpredictable

38. In metals subjected to cold working, strain hardening effect is due to :
(A) twinning mechanism
(B) fracture mechanism
(C) dislocation mechanism
(D) none of the above

39. Scheduling is :
(A) alloting a job to a operator
(B) alloting a job to a machine
(C) fixing the time of completion of a job
(D) detailing the sequence of operation job-wise and machine wise

40. The impeller used in mud pumps is :
(A) open type
(B) semi open type
(C) shrouded on one side only
(D) shrouded on both sides

41. A mechanism forms a structure when the degrees of freedom is equal to :
(A) 2
(B) 1
(C) 0
(D) -1

42. Which of the following defect can occur due to improper design of a gating system ?
(A) Shrinkage
(B) Porosity
(C) mould erosion
(D) any of the above

43. PERT is mainly useful for :
(A) large projects
(B) large and complex projects
(C) research and development projects
(D) any small or large projects

44. Zeroth law of thermodynamics defines :
(A) internal energy
(B) enthalpy
(C) temperature
(D) pressure

45. In a vibrating system the damping factor is unity, then :
(A) the system will have no vibration
(B) the system will be highly damped
(C) the system will be critically damped
(D) the system will be under-damped

46. In EDM, the number of discharges per minute may be as high as :
(A) 3000
(B) 6000
(C) 60,000
(D) 600,000

47. Work sampling is used to find :
(A) percentage occurrence of certain activity
(B) rating of a job
(C) pre – determined motion time data
(D) standard time for a repetitive operation

48. If the diameter of a centrifugal pump impeller is doubled keeping the discharge and speed constant, then the head needs ty be reduced by :
(A) 16 times
(B) 4 times
(C) 2 times
(D) 8 times

49. A parabolic cam is so named because its :
(A) Profile is parabolic
(B) Follower displacement vs time plot is parabolic
(C) follower velocity vs time plot is parabolic
(D) follower acceleration vs time plot is parabolic

50. The tool may fail suddenly because of :
(A) Crater wear
(B) Flank wear
(C) Both crater and flank wear
(D) Spalling