Un-Answered Questions { Mechanical Engineering }

Whether individual components in composite materials retain their characteristics or not?

697


What is the maximum use of magnesium ?

727


In which process internal energy remains constant ?

607


What is the name given to ratio of actual cycle efficiency and ideal cycle efficiency?

639


What do you understand by sulphur print ?

648


Which nuclear reactor uses water as a coolant, moderator and reflector ?

626


What is the difference between austenite stabilisers and ferrite stabilisers ?

637


What is the relationship between cop of heating and cooling ?

625


What is curie point ?

658


Which are the reference fuels for knock rating of s.i. Engines ?

660


Why entropy change for a reversible adiabatic process is zero ?

622


What is the principle of mechanical refrigeration ?

615


What is the purpose of biological shield in nuclear plants ?

609


Why iso-octane is chosen as reference fuel for s.i. Engines and allotted 100 value for its octane number ?

668


What are the causes of failure of superheater tubes ?

602