Sewage Treatment Worker Practice Test Questions with Correct Answers

The scale on the drawing is 1/8"=1. What is the actual length of a line that measures 2" 1/4' on the drawing? Correct Answer 6 ft? 18 ft? Which of the following measure the specific gravity of the electrolyte of a wet cell battery? Correct Answer Hydrometer A possible cause for an air conditioner compressor to run continuously is a Correct Answer Defective low pressure control switch? Shortage of refrigerant? Threads are cut in a rod by rotating the die stick 1/4 turn back for each 1/2 forward turn, this is done in order to? Correct Answer Break the Chips Three pumps are connected to a water tank, each pump pumps a rate of A=150 GPH B=250 GPH C=500 GPH, what is the average pumping rate of the pumps in gallons per hour? Correct Answer 300 If the capacity of the water tank is 14,250 gallons, how many hours will it take to fill the tank using only pumps B=250 GPH and C=500 GPH Correct Answer 19 What type of power tool uses the blades shown below? Diagram Correct Answer Reciprocating Saw What is the length of pipe needed to make four pieces measuring 18 3/4", 8 1/8", 16 5/16", 24 1/2"? Correct Answer 67 11/16 The one of the following that is not on a glove valve is? Correct Answer Wedge An elbow having an outside thread on one end and inside thread on the other end is called Correct Answer Street Elbow When drilling cotter pin holes in a piece of round stock, the piece should be held with a Correct Answer V Block The volume of the tank in cubic feet is D=10 ft, H=40 ft? Correct Answer 3,142 (3.14 x 5 squares x 40) How many gallons of paint will be needed to paint the inside of the above tank, (Assume that one gallon of paint cover 100 sq. feet) Diameter is 10, Height is 40 Correct Answer 12?14? How