An undersized valve may cause:
A) Hunting. B) Trickling. C) Cavitation. D) Cycling.
C
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Which of the following would be the preferred method of removing a tough-to-remove gasket from an oil pan flange?
A. oxy-acetylene rosebud B. gasket eliminator chemical C. pneumatic gasket remover D. right angle grinder
After boring the hole through the coupling, a machinist measures the bore diameter to be 1.251 inches. The tolerance was 1.250 plus or minus .005. It can be concluded that the diameter of the bore is:
A) Too large B) Within acceptable tolerance C) Too small D) Exactly as specified on the drawing
In mag-particle inspection AC current is best for subsurface investigation
Indicate whether the statement is true or false
How is a concentric vent used in a high-efficiency furnace?
A) It creates two close exit points for the vent pipe and combustion air pipe. B) It allows a single outdoor exit point for the vent and combustion air pipe. C) It allows the vent pipe to combine with condensate drainage. D) It directs the combustion air pipe to an outdoor exit.