The break in insulation where two sections butt against each other is called a _____.
a. tangential joint
b. longitudinal joint
c. circular joint
d. circumferential joint
d. circumferential joint
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The grouting of the cells of a CMU wall is required where
A) greater fire resistance of the wall is required. B) the cells are provided with steel reinforcement. C) greater sound insulation of the wall is required. D) all of the above. E) A and B only.
Two junction boxes are each located on different walls, 12 inches from the same corner. Given a 90° bend with a take-up of 6 inches and a gain of 2-1/4 inches, what is the developed length of the conduit between them?
a. 8-1/4 inches b. 10-3/4 inches c. 18-7/8 inches d. 21-3/4 inches
You can prevent a finished shaft from being damaged by the steady rest jaws by:
A) Using hardened steel jaws, oiled and adjusted frequently B) Keeping them good and tight and using a light oil C) Readjusting the top jaw when the shaft heats and expands and by using high pressure lubricant and protective material on the jaws D) Wrapping the shaft with abrasive cloth, abrasive side to the shaft, and by using high pressure lubricant
When homeowners neglect to change filters, airflow is reduced to the point where the cooling coil can freeze. This can cause what critical component to fail prematurely?
A) Blower fan
B) Compressor
C) Condenser fan
D) Metering device