Chapter 94 Flashcards

0
Q

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

A

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

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1
Q
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
A

D) at the boiler outlet

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2
Q
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
A

C) a safety relief valve

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3
Q
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
A

D) with metal tags

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4
Q
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
A

D) directs air into the expansion tank

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