1. When the pressure of steam increases then
(A) Temperature increase
(B) Temperature decrease
(C) Unchanged
(D) None of these
2. The critical pressure of steam is
(A) 280.2 bar
(B) 221.2 bar
(C) 320.2 bar
(D) 350.2 bar
3. Dryness fraction for dry saturated steam is
(A) 1/2
(B) 1
(C) 2
(D) 1.4
4. The amount of heat absorbed by 1 Kg of water when heated at a constant pressure from the freezing point (0°C) to the temperature of the formation of steam is called
(A) Heat of vaporization
(B) Latent heat
(C) Sensible heat
(D) Specific heat
5. Steam formed on the surface of water is … steam
(A) Wet steam
(B) Dry steam
(C) Both a and b
(D) Superheated steam
6. The volume of 1 Kg of superheated steam is always … than that of dry saturated steam at the same pressure
(A) Same
(B) Greater
(C) Less
(D) None of these
7. The critical temperature of steam is
(A) 400°C
(B) 300°C
(C) 374.15°C
(D) 500°C