Which of the following statements about ammonia as a refrigerant is true?
a. Ammonia is slightly less efficient in heat transfer than halocarbon refrigerants.
b. Ammonia costs more than other common refrigerants.
c. Ammonia is poisonous and must be handled with extreme care.
d. Ammonia piping cannot be constructed from copper.
d
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Answer the following statements true (T) or false (F)
1) Hot work is any work that involves welding, cutting, chipping, or any other process that creates sparks. 2) OSHA requires that all organizations develop fire-prevention plans for its approval. 3) Wood, paper, and trash fires are considered Class A fires. 4) The responsibilities of the industrial hygienist include mechanical safeguarding. 5) The OSH Act established specific requirements relating to industrial hygiene.
A ____ is a logic diagram that uses a set of standard symbols to visually explain the sequence of events from the start of a process to its end point.
A. flowchart B. map C. block chart D. pseudocode
The cylindrical gasoline tank on a tractor is 11 inches in diameter and 36 inches long. How many gallons will the tank hold? Round to the nearest tenth.
A. 14.6 B. 14.8 C. 15.0 D. 15.2
Give the ASME definition for mechanical spring.
What will be an ideal response?