Regulatory signs are:
a. suggestions
b. laws
c. warnings
Answer: b. laws
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Answer the following statement(s) true (T) or false (F)
1. The most economical speed for an electrical motor is about 1800 revolutions per minute. 2. It has been suggested that synchronous motors are more expensive to install than squirrel cage motors if the rating exceeds 1 hp. 3. Laser light is directional. 4. Offset drives, such as V-belts, gears, and chain drives, can be lined up more easily than direct drives. 5. Five quantities must be known if the machinery is to be set up with the correct pulley sizes.
How are adjacent structural insulated panels connected with each other?
What will be an ideal response?
Why is the composite action of a cold-formed steel (CFS) backed interior gypsum board partition wall generally not achievable?
What will be an ideal response?
Positive displacement compressors have crankcase heat to ____.
A. preheat the chilled water for better efficiency B. prevent refrigerant migration to the compressor C. preheat the compressor bearings for longer wear D. minimize condenser subcooling