Chapter 94

Question 0

When a closed expansion tank is used and the system is cold:
A) the auto fill valve will maintain a system minimum pressure
B) the tank level will be high
C) there will be no air in the tank
D) the possibility of air in the system will be high

Answer 0

A) the auto fill valve will maintain a system minimum pressure

Question 1

The temperature indicator of a hot water boiler should indicate water temperature:
A) at the boiler inlet
B) in the expansion tank
C) midsY through the system
D) at the boiler outlet

Answer 1

D) at the boiler outlet

Question 2

A hot water boiler is protected from over pressure by means of:
A) a safety pop valve
B) a high limit pressure control
C) a safety relief valve
D) an expansion valve

Answer 2

C) a safety relief valve

Question 3

How are stop valves used on outlet connections of heating boilers identified?
A) with stamps
B) with catalogue numbers
C) with identification numbers
D) with metal tags

Answer 3

D) with metal tags

Question 4

In a closed expansion tank system, an air separator:
A) removes air from the expansion tank
B) is installed at the boiler inlet
C) is installed at the boiler outlet
D) directs air into the expansion tank

Answer 4

D) directs air into the expansion tank