The target is best described as:
a. the mean
b. the desired value ; also called the nominal value.
c. the mode
d. a quality characteristic that varies or conforms to desired specifications.
Answer: B
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A(n) ____ is used for installations where heavy loads are used infrequently or where it is apparent that future demand may require additional loading.
A. autotransformer B. instrument transformer C. tapped transformer D. buck-boost transformer
As a rule, the piping and circulator, as well as the thermal rating of the tank’s heat exchanger should be able to ____ heat as fast as the boiler, or other heat source, can produce it.
a. transfer b. exchange c. store d. distribute
A technician is testing a diode using a DMM in the diode test mode. She measures 0.7V when the diode is forward biased and the DMM indicates OL when the diode is reverse biased. What do these test results indicate?
A. The results indicate the diode is defective because of the OL indication when the diode is reverse biased. B. The results indicate that this is definitely not a zener diode. C. The results indicate she is not testing the diode correctly. D. The results indicate the diode is likely functioning correctly.
Technician A says all pressure differential valves must be manually recentered after bleeding. Technician B says a recentering spring is used on some pressure differential valves. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B