NEW
Font size
S
M
L
XL
WorksheetsBME - PROPERTIES OF STEAM - COMPUTER ENGINEERING
Total questions: 23
Worksheet time: 1hrs 13mins
Name
Class
Date
1.
When dry saturated steam is further heated, its dryness fraction
a)
Increase
b)
Decrease
c)
Remains same
d)
None
2.
Volume of steam is approximately
a)
600 times that of water
b)
800 times that of water
c)
1000 times that of water
d)
None
3.
With the increase of pressure, the boiling point of water
a)
Increases
b)
Decrease
c)
No change
d)
None
4.
Specific internal energy of dry steam is given by
a)
u= h g + 100 p v g
b)
u = h g – 100 p v g
c)
u = 100 h g/p v g
d)
None
5.
What is effect of increase of pressure on the enthalpy of steam
a)
Increase
b)
Decrease
c)
No change
d)
None
6.
Dryness of fraction steam can be accurately found with
a)
Separating Calorimeter
b)
Throttling Calorimeter
c)
Separating and throttling Calorimeter
d)
None
7.
During super-heating of steam, the heat supplied is
a)
Sensible heat
b)
Latent heat
c)
both
d)
None
8.
The dryness fraction of super-heated steam is
a)
1
b)
great than 1
c)
less than 1
d)
None
9.
Enthalpy of saturated steam is
a)
Equal to the enthalpy of wet steam
b)
Less than the enthalpy of wet steam
c)
Greater than the enthalpy of wet steam
d)
None
10.
The properties of water are arranged in the steam tables as functions of
a)
Pressure
b)
Temperature
c)
Pressure and temperature
d)
None
11.
The internal energy of saturated water at the triple point is
a)
1
b)
0
c)
-1
d)
Infinite
12.
Devices such as calorimeters are used to for determining the quality or enthalpy of the mixture.
a)
true
b)
false
13.
What is the dryness fraction (x) on saturated vapour line?
a)
0
b)
1
c)
0.9
d)
0.5
14.
What is the dryness fraction (x) for saturated water, when water just starts boiling?
a)
0
b)
1
c)
0.9
d)
0.5
15.
Latent heat is the length of straight line between saturated states
a)
true
b)
false
16.
Calculate the total heat of 5 kg of steam at an absolute pressure of 8 bar having dryness fraction of 0.8
a)
11790.5 KJ
b)
11000 KJ
c)
12000 KJ
d)
None
17.
Find the enthalpy of steam at 12 bar when the steam is dry saturated
a)
2600 KJ/kg
b)
2780 KJ/kg
c)
2782.73 KJ/kg
d)
None
18.
Determine the condition of steam at 10 bar and 200oC
a)
dry
b)
wet
c)
Superheated
d)
None
19.
Determine the condition of steam at 12 bar and enthalpy 2600 KJ/kg
a)
wet
b)
dry
c)
Superheated
d)
None
20.
Boiling point is the function of
a)
Pressure
b)
temperature
c)
enthalpy
d)
None
21.
what is the use of steam
a)
power generation
b)
process heating
c)
drying
d)
all of the mentioned
22.
how to determine the type of steam
a)
using pressure and temperature
b)
using pressure
c)
using temperature
d)
none of the above
23.
When water is heated with rise of temperature, it consumes
a)
Latent Heat
b)
Enthalpy
c)
Sensible Heat
d)
None
Reset
