Chapter 117

Question 0

What kind of an evaporator can be easily cleaned and defrosted manually without interrupting the cooling process?
A) bare finned
B) finned
C) plate surface
D) shell and tube
E) none of the above

Answer 0

C) plate surface

Question 1

What type of evaporator contains only a small amount of liquid refrigerant at any given time?
A) flooded
B) dry, or expansion

Answer 1

B) dry, or expansion

Question 2

Which type of condenser uses the least amount of cooling water?
A) shell and coil condenser
B) evaporative condenser
C) double tube
D) condenser shell

Answer 2

B) evaporative condenser

Question 3

The purpose of a condenser in a refrigeration system is to:
A) remove liquid refrigerant from the compressor
B) act as receiver for the thermostatic expansion valve
C) add heat to the system when necessary
D) remove pressure from the condenser
E) remove heat from the refrigerant

Answer 3

E) remove heat from the refrigerant

Question 4

What are two disadvantages of flooded evaporators?
A) require more refrigerant
B) require less space
C) require more space
D) are less efficient
E) A & C
F) C & D

Answer 4

E) A & C

Require more refrigerant, and more space

Question 5

What are two methods do of reducing liquid carryover with flooded shell and tube evaporators (chillers)?
A) mist eliminators
B) reflux condensers
C) surge drums
D) large condenser shells
E) A & D
F) A & C
G) B & C

Answer 5

F) A & C

Mist eliminators and surge drums.