When training for a show, exercise should begin at least how long prior to the show?
A. 2 weeks
B. 4 weeks
C. 2 months
D. 6 months
Answer: C
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Employers must report the following types of accidents within ____ hours: (1) those that result in death, and (2) those result in the hospitalization of five or more employees.
Fill in the blank(s) with the appropriate word(s).
The grade of a fastener, such as a bolt, is a measure of its ________
A) Hardness B) Color C) Finish D) Tensile strength
The sensorless vector drive has no self-correcting capabilities.
Answer the following statement true (T) or false (F)
Answer the following statement(s) true (T) or false (F)
1. Most high-voltage power transmission and distribution is three-phase AC. 2. Transmission voltages are often in the range of 138kVAC to 500kVAC. 3. In a transformer, the primary coil is the output and the secondary coil is the input. 4. The unit of measure for frequency is hertz (Hz). 5. Power utilities use high-voltage single-phase generators and then use transformers to develop three-phase distribution.