Quickly closing the main burner manual cock valve during boiler operation should trip the:

Quickly closing the main burner manual cock valve during boiler operation should trip the:

Quickly closing the main burner manual cock valve during boiler operation should trip the:



a. Flame scanner
b. Combustion air proving switch
c. Low gas pressure fuel cut-off
d. High gas pressure fuel cut-off
e. Low fire interlock switch







Answer: D


Learn More :