If 18 V and 6 V sources are connected in series opposing, what is the total voltage?
A) 18 V B) 12 V C) 6 V D) 2 V
B
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In a piston-type compressor, the pistons are driven by a ________.
A) Crankshaft B) Wobble plate C) Swash plate D) Any of the above, depending on the compressor
Productivity is defined as the _____.
a. total amount of material a crew places for a given job b. amount of material an individual worker places to complete a job c. amount of material scheduled to be used in a given time d. total amount of material an individual or crew places in a given time
Technician "A" says that a multi-evaporator system equipped with three evaporators (one high temperature, one medium temperature, and one low temperature) will use one evaporator pressure regulator and two flow check valves. Technician "B" says that the crankcase pressure regulator is used to keep the low-temperature compressor from overloading on a hot pulldown. Which of the following statements is correct?
A. Technician "A" is correct. Technician "B" is correct. B. Technician "A" is correct. Technician "B" is incorrect. C. Technician "A" is incorrect. Technician "B" is correct. D. Technician "A" is incorrect. Technician "B" is incorrect.
A k out of n system is one in which there is a group of n components, and the system will function if at least k of the components function. Assume the components function independently of one another.
a. In a 3 out of 5 system, each component has probability 0.9 of functioning. What is the probability that the system will function? b. In a 3 out of n system, in which each component has probability 0.9 of functioning, what is the smallest value of n needed so that the probability that the system functions is at least 0.90?