
Objective Questions and Answer: Automobile Engineering 11
Subject: Automobile Engineering 11
Part 11: Objective questions and answers of Automobile Engineering
Q1. Which of the following is not an automobile ?
a) Motor cycle
b) Passenger car
c) Aeroplane
d) Truck
Q2. The torque available at the contact between driving wheels and road is known as
a) Brake effort
b) Tractive effort
c) Clutch effort
d) None of these
Q3. The rolling resistance is because of the friction between the
a) Wheel rim and tyre
b) Tyre and the road surface
c) Wheel rim and road surface
d) None of these
Q4. The power actually developed inside the engine cylinder is called as
a) Indicated power
b) Brake power
c) Frictional power
d) None of these
Q5. The most commonly used power plant in automobile is
a) Gas turbine
b) I.C. Engine
c) Battery
d) None of these
Q6. The petrol engine works on
a) Otto cycle
b) Carnot cycle
c) Diesel cycle
d) Rankine cycle
Q7. In a square type engine
a) Geometrical shape is square
b) Diameter and length of piston are same
c) Two cylinders are placed horizontal and two vertical
d) Stroke length and cylinder bore are same
Q8. The three basic cylinder arrangements for automotive engines are
a) Flat, radial and V
b) In a row, inline and opposed
c) Inline, V and opposed
d) V, double row and opposed
Q9. The petrol engines are also known as
a) Spark ignition (S.I) engines
b) Compression ignition (C.I) engines
c) Steam engines
d) None of these
Q10. The Diesel engine works on
a) Otto cycle
b) Carnot cycle
c) Diesel cycle
d) Rankine cycle
Q11. The Diesel engines are also known as
a) Spark Ignition (S.I) engines
b) Compression ignition (C.I) engines
c) Steam engines
d) None of these
Q12. For the same maximum pressure and temperature
a) Diesel cycle is more efficient than Otto cycle
b) Otto cycle is more efficient that Diesel cycle
c) Both Otto cycle and Diesel cycle are equally efficient
d) None of the above
Q13. In a Diesel engine, the fuel is ignited by
a) An electric spark
b) The heat of compression
c) The hot exhaust
d) None of these
Q14. A basic difference between the spark ignition engine and the Diesel engine is that the
a) Diesel engine compresses air alone instead of an air fuel mixture
b) Air temperature ignites the fuel in the Diesel engine
c) Fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C on the compression stroke
d) All of the above
Q15. The combustion process in a Diesel engine is a
a) Constant volume process
b) Constant pressure process
c) Constant temperature process
d) Adiabatic process
Q16. If clearance volume of I.C engines is increased, the compression ratio will
a) Increase
b) Decrease
c) Remain constant
d) Be doubled
Q17. The compression ratio in petrol engine is kept less than in Diesel engine because
a) It makes petrol engines lighter
b) Higher or equivalent compression ratio in petrol engines is not possible due to preignition
c) Less compression ratio gives better performance
d) It is just customary to have less compression ratio in petrol engines
Q18. 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
Q19. The basic part of the engine, to which the other engine parts are attached or assembled is the
a) Cylinder head
b) Crankshaft
c) Cylinder block
d) Oil pan
Q20. The materials used for cylinder block are
a) Cast iron and steel
b) Cast iron and aluminium alloy
c) Steel and aluminium alloy
d) Brass and steel
Part 11: Objective questions and answers of Automobile Engineering
Q1. Answer c
Q2. Answer b
Q3. Answer b
Q4. Answer a
Q5. Answer b
Q6. Answer a
Q7. Answer d
Q8. Answer c
Q9. Answer a
Q10. Answer c
Q11. Answer b
Q12. Answer a
Q13. Answer b
Q14. Answer d
Q15. Answer b
Q16. Answer b
Q17. Answer b
Q18. Answer a
Q19. Answer c
Q20. Answer b
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