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STEAM & ITS PROPERTIES

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

____________ is also called as hidden heat

a)

Entropy

b)

Enthalpy

c)

Super heat

d)

Latent heat

2.

Unit of Specific volume is

a)

kN/m2

b)

m3

c)

kg/m3

d)

m3/kg

3.

Specific heat of water is _______kJ/kgK

a)

4

b)

1

c)

2.1

d)

4.19

4.

Degree of super heat is ___________

a)

(Tsup / Ts)

b)

x

c)

(tsup- ts)

d)

(Ts /Tsup)

5.

Dryness fraction is denoted as ___________

a)

(Tsup / Ts)

b)

x

c)

(tsup- ts)

d)

(Ts /Tsup)

6.

Unit of dryness fraction is m3/kg

a)

True

b)

False

7.

Choose the correct answer

a)

X < 1, the steam is dry steam

b)

X > 1, the steam is wet steam

c)

X < 1, the steam is super heated steam

d)

X < 1, the steam is wet steam

8.

Dryness fraction is equal to __________________

a)

Mass of dry steam / Total mass of wet steam

b)

Mass of dry steam / Total mass of superheated steam

c)

Mass of dry steam x Total mass of wet steam

d)

Total Mass of wet steam / mass of dry steam

9.

Critical pressure of water is _______bar

a)

22

b)

222

c)

22.2

d)

202.2

10.

Critical temperature of water is equal to _______OC

a)

100

b)

222

c)

0

d)

374.15