Coke is produced by__________________?

A. Pulverising coal in inert atmosphere
B. Heating wood in a limited supply of air at temperatures below 300gc
C. Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
D. Binding the pulverised coal into brick-etts

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
D. 1 kgf/cm2

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

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

Superheating of steam is done at_________________?

A. Constant volume
B. Constant temperature
C. Constant pressure
D. Constant entropy

The coal requirement per kW hour generation in the thermal power plant is of the order of__________________?

A. 0.1 to 0.2 kg
B. 0.2 to 0.4 kg
C. 0.6 to 0.8 kg
D. 1.0 to 1.5 kg

Stoichiometric quantity of air is the___________________?

A. Air present in atmosphere at ntp conditions
B. Air required for complete combustion of fuel with no excess air
C. Air required for optimum combustion so as to have reasonable excess air
D. Air required to convert co into c02

The specific volume of steam with increase in pressure decreases_____________________?

A. Linearly
B. Slowly first and then rapidly
C. Rapidly first and then slowly
D. Inversely

If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton’s law, the pressure in condenser is equal to__________________?

A. Ps-pa
B. Pa-ps
C. Pa+p
D. Non of these

Carbonation of coal is the process of________________________?

A. Pulverising coal in inert atmosphere
B. Heating wood in a limited supply of air at temperatures below 300°c
C. Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
D. Binding the pulverised coal into brick-ettes