How is the type of service pressure of a recovery tube identified?
A) By the first numbers listed on the tube B) By the first number after the letters "DOT"
C) By the last group of numbers on the tube D) By the listed weight of the tube
C
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Summarize the advantages and disadvantages of resistance soldering and brazing.
What will be an ideal response?
The shoes you wear in the lab should:
a. Completely cover your feet c. Be made of canvas b. Have raised soles d. All answers are correct.
As the refrigerant temperature drops during the desuperheating phase of the refrigeration cycle, the refrigerant pressure:
A) Increases due to the inverse relationship between temperature and pressure. B) There is no definite relationship between refrigerant pressure and refrigerant temperature. C) Drops also due to the temperature drop. D) Remains the same.
If two identical slings are used at an angle to the load, each sling _____
a. bears 1/2 the weight of the load b. bears more than 1/2 the weight of the load c. bears 3/4 the weight of the load d. bears less than 1/2 the weight of the load