3B2 Absa Power Engineering - Chapter 3 Questions With
Complete Solutions
A _______________ also acts as a deaerator even with the
turbine at full load and the condenser operating at
a reduced vacuum.
a. feed pump
b. cooling tower
c. air cooled condenser
d. surface condenser
e. jet condenser Correct Answers d. surface condenser
A surface condenser may be ________________ .
1) oval
2) triangular
3) cylindrical
4) rectangular
5) hexagon
a. 1, 2, 3
b. 2, 3, 4
c. 3, 4, 5
d. 1, 2, 5
e. 1, 3, 4 Correct Answers e. 1, 3, 4
Air in a surface condenser:
1) Increases the pressure
2) Retards heat transfer
3) Enters with the high pressure ejector steam
4) Is cooled before being removed
a. 1, 2, 3
b. 2, 3, 4
, c. 1, 3, 4
d. 1, 2, 4
e. 2, 3 Correct Answers d. 1, 2, 4
Allowances must be made for differential expansion of the tubes
and shell. Packed tube-ends may allow the
tube to move ____________ .
a. through an expansion joint
b. through an expansion loop
c. very little
d. axially in the packing
e. radially in the packing Correct Answers d. axially in the
packing
Condenser tube plates can be installed with __________.
1) ferrules
2) metallic or fiber packings
3) roll expanding
4) combination of roll expanding and ferrule
5) all of the above
a. 1, 2, 3
b. 2, 3, 4
c. 1, 2, 4
d. 1, 2, 5
e. 1, 3, 4 Correct Answers e. 1, 3, 4
Feedwater heaters use _____________ of bleed steam to heat
feedwater.
a. sensible heat
b. latent heat
c. super heat
Complete Solutions
A _______________ also acts as a deaerator even with the
turbine at full load and the condenser operating at
a reduced vacuum.
a. feed pump
b. cooling tower
c. air cooled condenser
d. surface condenser
e. jet condenser Correct Answers d. surface condenser
A surface condenser may be ________________ .
1) oval
2) triangular
3) cylindrical
4) rectangular
5) hexagon
a. 1, 2, 3
b. 2, 3, 4
c. 3, 4, 5
d. 1, 2, 5
e. 1, 3, 4 Correct Answers e. 1, 3, 4
Air in a surface condenser:
1) Increases the pressure
2) Retards heat transfer
3) Enters with the high pressure ejector steam
4) Is cooled before being removed
a. 1, 2, 3
b. 2, 3, 4
, c. 1, 3, 4
d. 1, 2, 4
e. 2, 3 Correct Answers d. 1, 2, 4
Allowances must be made for differential expansion of the tubes
and shell. Packed tube-ends may allow the
tube to move ____________ .
a. through an expansion joint
b. through an expansion loop
c. very little
d. axially in the packing
e. radially in the packing Correct Answers d. axially in the
packing
Condenser tube plates can be installed with __________.
1) ferrules
2) metallic or fiber packings
3) roll expanding
4) combination of roll expanding and ferrule
5) all of the above
a. 1, 2, 3
b. 2, 3, 4
c. 1, 2, 4
d. 1, 2, 5
e. 1, 3, 4 Correct Answers e. 1, 3, 4
Feedwater heaters use _____________ of bleed steam to heat
feedwater.
a. sensible heat
b. latent heat
c. super heat
