Automobile Engineering(Engineering > Mechanical Engineering ) Questions and Answers

Question 1. The heat transfer from coolant to air in the radiator of an automobile engine takes place by
  1.     Radiation only
  2.     Convention only
  3.     Convection and radiation
  4.     Conduction, convection and radiation
Explanation:-
Answer: Option C. ->  Convection and radiation
Explanation :
Question 2. The starter motor is driven by
  1.    Chain drive
  2.    Gear drive
  3.    Flat belt drive
  4.    V-belt drive
Explanation:-
Answer: Option B. -> Gear drive
Question 3. Two speed reverse gear arrangements is generally provided in case of
  1.    Passenger cars
  2.    Matadors
  3.    Tractors
  4.    Trucks
Explanation:-
Answer: Option C. -> Tractors
Question 4. The negative terminal post on the top of a battery is
  1.    Smaller than the positive terminal post
  2.    Larger than the positive terminal post
  3.    Of the same size as the positive terminal post
  4.    None of these
Explanation:-
Answer: Option A. -> Smaller than the positive terminal post
Question 5. Thinner is added to the paint in order to
  1.    Make pigments and resin mix easily
  2.    Make paint film hard
  3.    Optimise its viscosity
  4.    None of these
Explanation:-
Answer: Option C. -> Optimise its viscosity
Question 6. The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as
  1.    Supercharging
  2.    Auto ignition
  3.    Scavenging
  4.    Detonation
Explanation:-
Answer: Option A. -> Supercharging
Question 7. The component in the radiator of an automobile that increases the boiling point of water is
  1.    Drain plug
  2.    Water jacket
  3.    Vacuum valve
  4.    Pressure cap
Explanation:-
Answer: Option D. -> Pressure cap
Question 8. An engine has a clearance volume of 100 cm³ and a swept volume of 800 cm³. The compression ratio is
  1.    7 : 1
  2.    8 : 1
  3.    9 : 1
  4.    10 : 1
Explanation:-
Answer: Option C. -> 9 : 1
Question 9. In a square type engine
  1.    Geometrical shape is square
  2.    Diameter and length of piston are same
  3.    Two cylinders are placed horizontal and two vertical
  4.    Stroke length and cylinder bore are same
Explanation:-
Answer: Option D. -> Stroke length and cylinder bore are same
Question 10. The component that is responsible for converting the rotation of the steering wheel into lateral motion is the
  1.    Steering wheel
  2.    Steering shaft
  3.    Steering gearbox
  4.    Tie rod
Explanation:-
Answer: Option C. -> Steering gearbox
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