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
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
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
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
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