3) Ideal air standard efficiency of a closed cycle gas turbine depends on

Answer is:

pressure ratio of the cycle only

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

For more MCQ's Click Here

4) The plant which is smaller in size and lower in weight for the same power, is

Answer is:

Gas turbine plant

5) At the critical pressure ratio for a convergent nozzle, the velocity at outlet will be

Answer is:

More than sonic velocity

6) Ductility of a material can be defined as

Answer is:

Ability to undergo large permanent deformations in tension

Explanation:

Ductility: Ductility is the property by which a metal can be drawn into thin wires. It is determined by percentage elongation and percentage reduction in area of a metal. Also Ductility of a material can be defined as ability to undergo large permanent deformations in tension.