3438Chemical EngineeringMedium
Maximum thermal efficiency of boiler may be about ________ percent?
A90
B65
C10
D25
Correct answer
A. 90
Explanation
The correct answer is 90.
Correct answer
A. 90
Explanation
The correct answer is 90.
Pressure of 0.01 psi (absolute) can be measured by ________ gauge?
Test piece for determination of RUL of a refractory is heated in a/an________?
Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at________?
Which of the following is not a pyrite ore?
64-132) rank coal (ASTM) means a coal with 64%________?
If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is φs is defined by________?