The most commonly used type of power transmission chain is the _____
A) split B) welded C) roller D) silent
C
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A flanged pipe system component with a rubber section that allows for pipe expansion and contraction is a(n) _____.
a. expansion joint b. expansion loop c. thermal compensator d. isolinear converter
Which type of muscle is found around the intestines?
a. striated muscle c. cardiac muscle b. smooth muscle d. skeletal muscle
Liquified petroleum (LP) is heavier than air and can cause suffocation if not handled properly.
Answer the following statement true (T) or false (F)
Codes relating to rooftop installation include:
A) OSHA, DOE, and EPA. B) NIST, UL, and CSA. C) Uniform Mechanical code, International Mechanical code, and National Fuel Gas code. D) International Conditioned Air Code, Rooftop Installation National Code, and International Heating & Cooling Code.