Senoir Sewage Treatment Worker Exam Questions with Correct Answers

Assume that a certain files has a safe edge. This is an edge that has Correct Answer no teeth The one of the following which is the proper tool for threading a round rod is a Correct Answer die A rasp is a Correct Answer type of coarse file The one of the following which is the proper tool to use to tighten a round nut which has a series of notches cut in its outer surface is a(n) _____________ wrench Correct Answer spanner Small leaks resulting form poor threads on steel or wrought iron water pipes will often stop because the leaky threads are in time filled with Correct Answer rust A metal that can be rolled or beaten into very fine sheets is said to be Correct Answer malleable To rod a sewer pipe means MOST likely to Correct Answer clean it out by means of rod Of the following abrasives, the one which is the LEAST coarse is Correct Answer crocus cloth In order to permit free passage of water in one direction only and prevent a reversal of flow in the pipe, it a necessary to use a ____________ valve. Correct Answer check Assume that a cubic foot of water contains 7 1/2 gallons. The number of gallons of water which could be contained in a rectangular tank 3 feet long, 2 feet wide, and 2 feet deep is MOST NEARLY Correct Answer 90 The weight, impounds, of cubic foot of fresh water is MOST NEARLY Correct Answer 62.4 The total weight, in pounds, of ten bags of Portland cements is MOST NEARLY ____________ pounds. Correct Answer 940 If a concrete mix is said to be 1:2:4, this would means that the mix is made up of 1 part by 1 Correct Answer volume of cement to 2 parts by volume of sand to 4 parts by volume of coarse aggregate The ratio of weight of substance to the weight of an equal volume of water is called the ______________ of the substance. Correct Answer specific gravity Of the following, the pipe fitting which has four openings which permits connecting a line at right angles to another line is called a(n) Correct Answer cross To tighten a nut where only a short swing of the wrench handle is possible, it is BEST to use a ______________ wrench. Correct Answer ratchet Of the following, the proper tool to use to remove the burr from the inside of a pipe is a Correct Answer reamer Fitting commonly used with copper pipe should be made of Correct Answer brass With respect to pipe, the abbreviation I.P.S. means Correct Answer Iron Pipe Size A Stillon wrench is the proper wrench to use when tightening a Correct Answer pipe fitting The one of the following which is the proper tool to use for cutting wood along the grain is a ___________ saw Correct Answer cross-cut The one of the following which is the proper tool to use to cut internal screw threads is a Correct Answer tap A center punches id the proper tool used to Correct Answer dent metal prior to drilling The one of the following knots which can be safety used for tying together the ends of two dry ropes of the same size is a Correct Answer square knot The PRIMARY purpose of a trap under a plumbing fixture is to Correct Answer act as a seal against sewer gas The one of the following which contains exactly 10 board feet is a broad 10 feet long, inches wide, ____________ inch(es) thick. Correct Answer 12; 1 Short pieces of pipe threaded on both ends are called Correct Answer nipples The unit of electrical capacitance is the Correct Answer farad As used in the electrical industry, BX means Correct Answer insulated wires in flexible metal tubing The word malodorous as used in the above paragraph means MOST NEARLY Correct Answer fetid