When dealing with accident vehicles in the upright position, the two main stabilization concerns are to prevent the vehicle from moving horizontally and:
A. vertically
B. forward
C. backward
D. to the side.
Answer: A. vertically
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In order to prevent a duct-mounted electric heater from being energized when the fan is not on, a(n) ____________________ should be used.
Fill in the blank(s) with the appropriate word(s).
?What can happen if the plates of a tee joint are held tightly together?
A. ?The joint overall tolerance may not be within specifications. B. ?Underbead cracking or lamellar tearing can occur. C. ?It makes it more difficult to see the root weld. D. ?The root of the weld may not have 100% fusion.
If two out of phase signals are applied to the inputs of a differential amplifier it is operating in
A) single-ended mode B) differential mode C) common mode D) common rejection mode
A side of a house measures 10 feet by 15 feet. There is one window which measures 3 feet by 4 feet. The wall is a wood frame with siding and 3 1/2 inch insulation + 1 inch polystyrene sheathing (R-16). The window is single pane plus storm window. Find the heat load for the window for a 70° F design temperature difference.
Fill in the blank(s) with the appropriate word(s).