The wheels of a moving car possess ?

The friction experienced by a body. when in motion, is known as ?

The basic requirement of a good combustion chamber is ?

Number of working strokes per min. for a four stroke cycle engine are ...... the engine in r.p.m. ?

The air cooling system mostly used in transport type aircrafts is ?

The leakage in a refrigeration system using freon is detected by ?

The largest diameter of an external or internal screw thread is known as ?

The acetylene cylinder is usually painted with ?

Seam welding is a ?

The ignition coil is used to ?