When the thermostat calls for boiler operation, the relief valve dribbles water until the water reaches a stable temperature. Then the dribbles stop. What is the most likely cause of the problem?
What will be an ideal response?
The expansion tank is water logged. There is no air in the tank.
Trades & Technology
You might also like to view...
There are two commonly used scales: the architectural scale and the ____________________ scale.
Fill in the blank(s) with the appropriate word(s).
Trades & Technology
On rear-wheel-drive vehicles, ____________________ is a term that describes the parts that transfer power from the transmission to the rear wheels.
Fill in the blank(s) with the appropriate word(s).
Trades & Technology
Linen wraps are not good service if client's hands are usually:
What will be an ideal response?
Trades & Technology
The oxy-acetylene torch kit is often preferred by technicians who braze __________.
A. flexible pipes B. large diameter pipes C. rigid pipes D. small diameter pipes
Trades & Technology