The percentage 02 by volume in atmosphere air is____________?

Related Mcqs:

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 draught produced, for a given height of the chimney and given mean temperature of chimney gases_______________?

A. decreases with increase in outside air temperature B. increases with increase in outside air temperature C. remains the same irrespective of outside air temperature D. may increase or decrease with increase in outside air temperature...

The pressure on the two sides of the impulse wheel of a steam turbine_____?

A. is same B. is different C. increases from one side to the other side D. decreases from one side to the other side...

Bucket elevators are used for___________?

A. carrying coal in horizontal direction B. carrying coal in vertical direction C. carrying coal in any direction...

At low value of power factor, the cost of generation of a power station will be____________?

A. high B. low C. remain same D. none of the above...