Zirconia refractories are not used in________?

Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be________?

Ans: 0.45Read →

MCQ #4261

Polymers are________?

Ans: MacromoleculesRead →

MCQ #6349

Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by________?

Ans: RadiationRead →

MCQ #93

Crude petroleum oil is a ________ fuel?

Ans: Both A. & B.Read →