What are the most common types of refrigeration system contaminants introduced because of improper installation?
What will be an ideal response?
Common installation related contaminants include carbon, oxides, air, and water.
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The proper term for Vise Grips is ________.
A) Slip joint pliers B) Side cuts C) Locking pliers D) Multigroove adjustable pliers
Choose the best answer to fill in the blank. The variance of an estimator measures__________________
i. how close the estimator is to the true value. ii. how close repeated values of the estimator are to each other. iii. how close the mean of the estimator is to the true value. iv. how close repeated values of the mean of the estimator are to each other.
It should be noted that in a parallel circuit, the total resistance is ____ the lowest resistance in the circuit.
A. equal to B. sometimes less than and sometimes greater than C. always greater than D. always less than
Which type of fit-up tool is often used to fit flanges and where heavy-duty reforming of the pipe is required?
a. Rim clamp b. Cage clamp c. Strongback d. Jewel clamp