The thin sheet of rubber, PVC, or other material inserted into a construction joint to obstruct the seepage of
water is known as a _____.
a. drainage block
b. vapor barrier
c. lock joint
d. water stop
d
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Answer the following statement(s) true (T) or false (F)
1. A network constitutes one rung of a ladder diagram that starts at the right rail and ends at the left rail. 2. The easiest way to avoid nesting is to remember that all branches must start at a common point, and all of the branches must end at the same location. 3. The way the processor scans the program is the same from PLC to PLC. 4. It is common practice to wire the overload contacts to an input module. 5. When a hard-wired backup control circuit is used in conjunction with a PLC to control a motor, then the overload contact on the motor starter must be wired in series with the motor coil to provide protection for the motor under both means of control, PLC and hard-wired.
All artificial magnets are permanent magnets.
Answer the following statement true (T) or false (F)
The ideal dimensions for a roof section would be in 3-foot increments.
Answer the following statement true (T) or false (F)
The system capacity of an air conditioner with a fixed metering device:
A) Is fixed regardless of the indoor wet bulb temperature. B) Is at its maximum when the indoor and outdoor temperatures are the same. C) Increases when the indoor wet bulb temperature rises. D) Decreases when the indoor wet bulb temperature rises.