SENOIR SEWAGE TREATMENT WORKER UPDATED QUESTIONS AND ANSWERS

SENOIR SEWAGE TREATMENT WORKER UPDATED QUESTIONS AND 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



From the above paragraph, because of pollution, the amount of dissolved oxygen in the waterways is -
CORRECT ANSWER✅✅lessened



The word categories as used in the above paragraph means MOST NEARLY - CORRECT
ANSWER✅✅divisions



The word offensive as used in the paragraph means MOST NEARLY - CORRECT
ANSWER✅✅disagreeable



The terminal voltage of 5 dry cells connected in a series is _______________ of one(each) cell. -
CORRECT ANSWER✅✅5 times the voltage

, If a 15 amperes fuse blows out and blow out again after inserting a new fuse, it is BEST to - CORRECT
ANSWER✅✅have the circuit checked to find the trouble



Ordinary soft solder is a mixture of lead and - CORRECT ANSWER✅✅tin



The electrolyte used in the ordinary flashlight-type dry cell is - CORRECT ANSWER✅✅ammonium
chloride



An electrical transformer is an electrical device used primarily to - CORRECT ANSWER✅✅raise or lower
AC voltages



Of the following, the MAIN reason for the grounding of electrical equipment and circuits is to - CORRECT
ANSWER✅✅protect personnel from electric shock



In order to properly ground portable electric hand tools, it is USUALLY necessary to use a - CORRECT
ANSWER✅✅three prong plug



The current in a simple electrical circuit can be calculated by dividing the voltage by the resistance in
ohms. Assume that the resistance of a certain circuit is 60 ohms and its voltage is 120 volts, 60 cycles A.C
The current in this circuit will be MOST NEARLY ______________ ampere(s) - CORRECT ANSWER✅✅2



The one of the following which is the MOST common type of motor that may be used with an AC or DC
source of supply is the ______________ motor. - CORRECT ANSWER✅✅series



The electrolyte in the ordinary storage battery is - CORRECT ANSWER✅✅sulphuric acid



The one of the following terms which is used in expressing the rating of a storage battery is - CORRECT
ANSWER✅✅ampere-hour



The size of the SMALLEST graduation on the ordinary 6 foot folding rule is usually - CORRECT
ANSWER✅✅1/16"