____ input simply means that the VFD uses electronic circuitry on the inputs that senses only two states; either the control voltage is present on the input, or it is not.
a. Analog
b. Digital
c. Magnetic
d. Terminal
b. Digital
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If you use a 60 watt light bulb for two hours, then you have used _______________ watt hours of electricity
Fill in the blank(s) with the appropriate word(s).
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Which of these is a cephalopod?
a. scallop c. octopus b. snail d. all answers
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Almost all amphibians require an aquatic environment for reproduction
Indicate whether the statement is true or false
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When adjusting S-cam brakes on a trailer equipped with manual slack adjusters, which of the following must be true?
A. The tractor parking brakes must be applied B. The trailer service brakes must be applied C. The trailer parking brakes must be released D. The tractor service brakes must be released
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