External diameter of the clutch facing is limited to 120 mm and the inner diameter may be assumed to be 0.3 times the external diameter. Assume uniform wear theory. What is the effective mean radius?

Engine is a device, which converts

A. Mechanical energy into heat energy

B. Heat energy into mechanical energy

C. Mechanical energy into sound energy

D. None of the above

Two-stroke engine is . . . . . . . . engine.

A. Water cooled

B. Air cooled

C. Oil cooled

D. None of these

Engines are:

A. 1 : 4 - 1 : 10

B. 1 : 12 - 1 : 22

C. 3 : 5 - 5 : 10

D. 5: 12 - 5: 22

Another name of diesel engine is

A. High volume combustion engine

B. Low volume combustion engine

C. Constant volume combustion engine

D. No volume combustion engine