Which of the following impurity in cast iron makes it hard and brittle ?

Vanadium when added to steel ?

With the increase of battery temperature, the specific gravity of electrolyte ?

Two advantages of using helical gears rather than spur gears in a transmission system are ?

A large clearance volume in a reciprocating compressor results in ?

Which of the following is an example of a higher pair ?

The ratio of static friction to dynamic friction is always ?

The rate of doing work is known as ?

A dynamometer is a device used for the measurement of ?

The tool material, for faster machining, should have ?