Technician A says to keep the decimals aligned when adding or subtracting decimal numbers. Technician B says to keep the decimals aligned when multiplying or dividing decimal numbers. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
A
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Solid-state relays generally apply 3 to ____ volts DC to the input to control the operation of the relay.
a. 12 b. 22 c. 32 d. 42
One of two machines, alpha and beta, is to be purchased to provide for a new production operation in a factory. Machine alpha costs $10 000 and machine beta, $15 000. However, machine beta will result in an annual savings in operating costs of $800 over machine alpha. Which machine would you recommend purchasing and why, if each has a useful life of 10 years and money is worth 6 percent? Assume that both machines will be worthless at the end of 10 years. What value of annual savings of machine beta over machine alpha would result in each being equally desirable?
What will be an ideal response?
The preferred method for connecting a circuit conductor to a device is to form a __________ in the wire, put it under a terminal screw, and tighten the screw properly.
a. terminal loop b. curve c. circle d. jug handle
Llamas were widely used as pack animals by the _____ and other natives of the Andes mountains.
Fill in the blank(s) with the appropriate word(s).