In case of compression of one kg of air, the work done will be the least, when the value of polytropic index ‘n’ is______________________?

Related Mcqs:

Boiling point of water gets lowered at high altitudes (e.g., hills), because ___________________?

A. Temperature is low B. Atmospheric pressure is low C. Atmospheric pressure is high D. None of these...

Current employed in resistance welding ranges from ____________________ kVA/cm2?

A. 1.2 to 2.5 B. 4.5 to 6.2 C. 7.5 to 8.5 D. 10.5 to 15.5...

Pick out the wrong statement about the machinability of metals. Machinability of a metal ?

A. Decreases with increase in strain hardening tendencies B. Decreases with increase in hardness, in general C. Depend on the composition, microstructure and physical & mechanical properties D. Decreases with increases in tensile strength & decrease in grain size...

Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of ________________?

A. Paper B. Cloth C. Lead D. Aluminium...

A pycnometer is used for the measurement of________________________?

A. Flow rate of molten metal B. Specific gravity of a liquid C. Composition of alloys D. Concentration of a solution...