Manual screeds can be made of wood or _____.
a. steel
b. aluminum
c. magnesium
d. fiber-reinforced plastic
Answer: C
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____ is the set of actions taken by an organization in response to an emergency situation in an effort to minimize injury or loss of life.
A. Crisis management B. Employee assistance C. Cross-training D. Job rotation
A shear block is used _________.
A) at the dead-load anchor of a mullion. B) at the expansion anchor of a mullion. C) to connect a rail to adjacent mullions. D) at a mullion expansion joint to allow the mullion to move. E) none of the above.
Answer the following statement(s) true (T) or false (F)
1. Primary cells are often connected in series to increase the terminal voltage. 2. Nickel-cadmium and nickel metal hydride cells have very similar operating characteristics. 3. The amount of voltage produced by a thermocouple is very large. 4. Barium titanate can produce enough voltage and current to flash a small neon lamp when struck by a heavy object. 5. Most lightning discharges take place between different clouds.
Installation clearances for rooftop units are required
A) to insure that the weight of the unit does not rest directly on any roof trusses, beams, joists, or rafters B) to maintain a safe distance between the wiring and combustible materials C) to isolate the equipment from materials that might be damaged by refrigerant leaks D) to insure the correct airflow through the condenser coil