?How is return on investment calculated?
A. ?benefit divided by net cost
B. ?benefit minus net cost, divided by net cost
C. ?net cost minus benefit, divided by net cost
D. ?net cost divided by benefit
Answer: B
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In addition to starting, stopping and controlling the speed of a motor, the controller may be required to respond to a number of conditions. List four examples of these conditions.
What will be an ideal response?
Plant _____________________ close at night, which helps prevent the entrance of pathogens during the time when they are most active
Fill in the blank(s) with correct word
Electricians often refer to Type AC cable as ____________________ cable.
Fill in the blank(s) with the appropriate word(s).
____ are so named since they were designed to perform arithmetic calculations such as addition and multiplication.
A. Transistors B. Inverters C. Opamps D. 555-timers