Question 1

Brake thermal efficiency of an engine is defined as the ratio of

Accepted Answer

Brake power to rate of fuel energy input

Answer

indicated power to brake power

Answer

indicated power to rate of fuel energy input

Answer

brake power to indicated power

Question 2

The ignition quality of diesel fuel is determined using

Accepted Answer

Cetane number

Answer

Octane number

Answer

Viscosity of fuel

Answer

Lead content

Question 3

Engine valves are generally formed in to mushroom shape and called

Accepted Answer

Poppet valve

Answer

Non-return valve

Answer

Stop valve

Answer

Tappet valve

Question 4

The big end of the connecting rod is connected to

Accepted Answer

Crank

Answer

Cam

Answer

Piston

Answer

Cylinder

Question 5

Brass is an alloy of copper and

Accepted Answer

Zinc

Answer

Lead

Answer

Antimony

Answer

Tin

Question 6

Two mating gears should have the same

Accepted Answer

Module

Answer

face width

Answer

Number of teeth

Answer

Diameter

Question 7

Heat and work are

Accepted Answer

Path functions

Answer

Intrinsic property

Answer

Point function

Answer

Extrinsic property

Question 8

As the compression ratio increases, the efficiency of Otto cycle

Accepted Answer

Increases

Answer

Decreases

Answer

No relation

Answer

Remains the same

Question 9

The maximum angle of a plane on which a body can just rest is known as

Accepted Answer

Angle of repose

Answer

Angle of restitution

Answer

Angle of cone

Answer

Angle of friction

Question 10

The moment of inertia of a surface is minimum about

Accepted Answer

Centroidal axis

Answer

Axis parallel to centroidal axis

Answer

Axis at an angle to the centroidal axis

Answer

Axis perpendicular to centroidal axis

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