A Best Way To Crack Gorenment Job Exams

Mechanical Engineering Objective Questions { Power Plant Engineering }



1. For water, at pressures below atmospheric,
A.Melting point rises slightly and boiling point drops markedly
B.Melting point rises markedly and boiling point drops markedly
C.Melting point drops slightly and boiling point drops markedly
D.Melting point drops slightly and boiling point drops slightly

2. At very low temperature, the melting and boiling temperatures become equal. This temperature is
A.373K
B.273.16K
C.303K
D.0K.

3. The critical pressure at which latent heat of vaporisation is zero is
A.225.65 kgf/cm2
B.273 kgf/cm2 (c) 100 kgf/cm2
C.(d) 1 kgf/cm2
D.4.4. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is

4. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is
A.Less
B.(c) equal
C.(d) may be less or more depending on temperature
D.(e) unpredictable.

5. The saturation temperature of steam with increase in pressure increases
A.Linearly
B.Rapidly first and then slowly
C.Slowly first and then rapidly
D.Inversely

6. Carbonisation of coal is the process of
A.Pulverising coal in inert atmosphere
B.Heating wood in a limited supply of air at temperatures below 300C
C.Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
D.Binding the pulverised coal into brickettes

7. Coke is produced by
A.Pulverising coal in inert atmosphere
B.Heating wood in a limited supply of air at temperatures below 300C
C.Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
D.Binding the pulverised coal into bricketts

Page 1 of 81

 1  23 »

Subjects