1. The inner diameter of cylinder in which piston moves up and down is known as
(A) Piston stroke
(B) Cylinder length
(C) Cylinder Bore
(D) Swept volume
2. A petrol engine draws, during suction stroke
(A) Petrol only
(B) Mixture of petrol and air
(C) Air only
(D) Diesel only
3. The power developed in the cylinder of I.C. Engine is
(A) Continuous horse power
(B) Friction horse power
(C) Indicated horse power
(D) Brake horse power
4. The brake power of the engine is available
(A) At the crank pin
(B) At the crankshaft
(C) In the engine cylinder
(D) None of these
5. The power available at the crank shaft of an I.C Engine is called
(A) Brake horse power
(B) Indicated horse power
(C) Friction horse power
(D) Continuous horse power
6. Brake horse power of an engine is measured by
(A) Engine indicator
(B) Calorimeter
(C) Brake power meter
(D) Dynamometer
7. The brake power of engine is always ………… than indicator power.
(A) Less
(B) High
(C) Equal
(D) Half
8. The ratio of B.H.P to the I.H.P of an engine is called
(A) Indicated thermal efficiency
(B) Brake thermal efficiency
(C) Mechanical efficiency
(D) Overall efficiency
9. The air standard efficiency is also known as
(A) Overall efficiency
(B) Thermal efficiency
(C) Relative efficiency
(D) Ideal efficiency
10. Twisting or turning effort is called
(A) Work
(B) Torque
(C) Pressure
(D) Force
11. Algebraic sum of the mean pressure on the face of the piston during each stroke over one complete cycle
(A) Atmospheric pressure
(B) Mean effective pressure
(C) Absolute pressure
(D) Vacuum pressure
12. Relative efficiency is also known as
(A) Efficiency ratio
(B) Volumetric efficiency
(C) Mechanical efficiency
(D) None of these