Which of the following problems can be caused by restrictions in the capillary tubes?
A) Low box temperature B) Low suction pressure
C) Low suction line temperature D) High suction pressure
B
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The major purpose of preheating and postheating of cast iron is to control the rate of temperature change.
Answer the following statement true (T) or false (F)
The most versatile square is the _____
A) framing square B) try square C) bevel square D) combination square
Which of the following is a key component of a visual inspection?
A) Check that the fan switch is on. B) Check that the water flow is within manufacturer's guidelines. C) Check that all wires have mechanical strain relief. D) Check that the power button is on.
Before a steel plate is used for practice welding, mill scale on the plate is removed because the DCEN used in
GTAW has little or no _____. a. electrical conductance b. flux resistance c. arcing ability d. cleaning action