The percentage O2 by Weight in atmospheric air is____________?

Related Mcqs:

The proper indication of incomplete combustion is_______________?

A. high CO content in flue gases at exit B. high CO2 content in flue gases at exit C. high temperature of flue gases D. the smoking exhaust from chimney...

Regenerative cycle thermal efficiency_______________?

A. is always greater than simple Rankine thermal efficiency B. is greater than simple Rankine cycle thermal efficiency only when steam is bled at particular pressure C. is same as simple Rankine cycle thermal efficiency D. is always less than simple Rankine cycle thermal efficiency...

The artificial draught normally is designed to produce____________?

A. less smoke B. more draught C. less chimney gas temperature D. all of the above...

Pipes carrying steam are generally made up of_____________?

A. steel B. cast iron C. copper D. aluminium...

Annual operating expenditure of a power plant consists of_________?

A. fixed charges B. semi-fixed charges C. running charges D. all of the above...