When installing a piping system with iron pipe:
A) The pipe must be threaded and fitted. B) The pipe must be cut and fitted.
C) The pipe must be cut with a vise. D) The pipe must be fitted with a vise.
[Ques. 2] A compound is a combination of two or more chemicals:
A) That form a completely new chemical with its own physical and chemical properties.
B) That form a mixture which cannot be separated by distillation.
C) That form a homogeneous mixture.
D) That form a mixture which can be separated through distillation.
[Ques. 3] The outside diameter of schedule 40 black iron pipe is approximately:
A) inch larger than the pipe's nominal size. B) The same size as the pipe's nominal size.
C) 1/8 inch larger than the pipe's nominal size. D) 3/16 inch larger than the pipe's nominal size.
[Ques. 4] How can water-tubing fouling be prevented in tube-and-shell water-cooled condenser systems?
A) Through annual draining of the water, removing access plates, and running brushes through the water tubes
B) Through a monthly external scrubbing with bleach
C) Through annual draining and replacement of the water in the condenser and annual chemical treatment of the water
D) Through annual chemical treatment of the water
[Ques. 5] A refrigerant blend with a glide of 10F or more would be considered:
A) A low glide blend. B) A compound.
C) A high glide blend. D) An azeotrope.
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