How is Indoor Air Quality (IAQ) defined?
A) Cleaning the air inside a building to acceptable levels
B) Air that is free from toxins, irritants, and noxious chemicals
C) The state of the air contained within an enclosed building
D) Air that is within the human comfort range and free of noxious substances
C
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OSHA requires that dump chutes be completely enclosed if they are set up at an angle greater than _____.
a. 45 degrees b. 55 degrees c. 65 degrees d. 75 degrees
Specific Gravity is defined as:
A) The time element of inertia in which a specific amount of mass times the distance can be moved. B) The ratio of mass per ft3 acting upon a given mass. C) The force of gravity applied to a cubic foot of a mass. D) The ratio of the density of a material as compared to a common material.
The stainless steel classification that has the poorest weldability is _____
a. martensitic b. ferritic c. austenitic d. duplex
What is the diameter of a hose 1/16 inch larger than 3 7/8 inches?
A. 3 3/4 B. 3 13/16 C. 3 15/16 D. 4 1/32