Modal commands are:
A) Initiated by the M words in the program B) Used only in specialized machining tasks
C) Repeated in every block until turned off D) Also called miscellaneous function commands
C
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The organization that establishes standardized testing for fire alarm designers and installers is the _____.
a. NFPA b. UL c. NICET d. NEMA
A drive shaft rotates at six to eight times the speed of the car's tires.
Answer the following statement true (T) or false (F)
Potential relays measure the back ________ developed across the ________ winding to operate the relay
A) amp draw, run B) emf, run C) emf, start D) amp draw, start
The need for breakaway connections on ducts connected to fire damper sleeves is based on the _____
a. thickness of the wall b. metal gauge of the sleeve c. size of the damper d. volume of airflow