While having a discussion, Technician A says that crimp connectors are used in computer circuits. Technician B says that special weatherproof connectors are used to prevent corrosion. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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When using the retail cost of goods plus labor pricing method, what is the commonly used percentage for labor?
a. 10–20 percent c. 40–50 percent b. 5–10 percent d. 25–30 percent
Two common pressure-sensing devices used in pressure controls are:
A) The bellows and the diaphragm. B) Strain gauge and expansion tube. C) Capacitive transducer and thermistor. D) Sail switch and warp switch.
Composite rotors are made of different materials, usually ____________________ and steel, to reduce weight.
Fill in the blank(s) with the appropriate word(s).
A room is 10X10X8. There are two outside walls, each 10X8, and one window, 24" X 36". The window is double glass, with sealed space between. The walls are framed with wood and 3-5/8" batts. The ceiling has 6" batt insulation. The temperature difference is 30 degrees F. What is the wall BTU loss?
Fill in the blank(s) with the appropriate word(s).