Technician A says that waterborne paint is safer than solvent-borne paint, and because of this, air respirators are not necessary. Technician B says that though waterborne paint has fewer organic solvents than solvent-borne paint, a respirator is still needed. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
B. Technician B only
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Ground covers are generally regarded as being no more than what height?
a. 23 inches c. 7 inches b. 18 inches d. 12 inches
The rate of water evaporation in a cooling water tower is approximately:
A) 1 gallon of the water per hour for every 10 degrees the water is cooled. B) 10 gallons of water per hour for every 10 degrees the water is cooled. C) 10 percent of the water supplied to the tower for every 10 degrees the water is cooled. D) 1 percent of the water supplied to the tower for every 10 degrees the water is cooled.
The areas of floor spaces, roofs, and land are sometimes referred to as their footprint sizes since area is an expression of the space enclosed or covered.
Answer the following statement true (T) or false (F)
To make combustion efficiency tests, a hole must be made ____.
A. in the flue pipe after the draft control B. in the flue pipe before the draft control C. over the fire at the observation door D. under the draft hood