x
x
x
x
x
x
CWEA Collection Systems Maintenance
x x x
x
questions with complete solutions.
x x x
x
x
x
x
x
x
x
x
x
x
x
x
Why xare xgasoline xand xvolatile xsolvents xobjectionable xwhen xpresent xin xa xsewer? x-
xcorrect x
x
answers.They xproduce xan xexplosion
xhazard
x
You xshould xnever xattempt xto xinstall, xmaintain, xrepair xor xreplace xelectrical
xequipment x
panels, xcontrols, xwiring xor xcircuits xunless x- xcorrect xanswers.You xknow xwhat xyou
xare
x
doing, xare xqualified xand xare
xauthorized
x
What xare xthe xdifferent xareas xof xtraffic xzones? x- xcorrect xanswers.Advance xWarning
xArea, xTransition xArea, xActivity xArea x(buffer xspace xand xwork xspace), xTermination
xArea. xCould xbe x4 xor x5, xjustify xyour xanswer xon xthe xtest! x
x
why xshould xhydrogen xsulfide xbe xcontrolled? x- xcorrect xanswers.to xprotect xfrom
xcorrosion x
x
and
xodors
x
Personnel xentering xa xPermit xRequired xConfined xSpace xmust xhave xthe xfollowing
xtraining x
x
- xcorrect xanswers.entry xand
xrescue
x
To xfind xprotective xgear xbefore xapplication xof xa xproduct, xyou xshould: x-
xcorrect x
x
answers.look xat xthe
xMSDS
x
The xgas xmost xcommonly xassociated xwith xseptic xwastewater xis x-
xcorrect x
, x
answers.Hydrogen
xSulfide
x
The xlack xof xan xunpleasant xodor xin xa xmanhole, xlift xstation xor xother xstructures xdoes
xnot xalways xmean xthat xdangerous xgases xare xnot xpresent xbecause: x- xcorrect
xanswers.some xdangerous xgasses xare xodorless x(for xexample, xcarbon xmonoxide) x
x
x
What xare xthe xfour xconditions xnecessary xto xcreate xan xexplosion? x-
xcorrect
answers.combustible xgas, xadequate xoxygen, xheat xand xproper xmixing xof xgas xand
xoxygen
x
what xdoes xthe x"transition xarea" xmean xin xtraffic xcontrol? x- xcorrect xanswers.It xmoves
xtraffic x
x
out xof xits xnormal
xpath
x
what xelements xshould xbe xconsidered xto ximprove xworker xsafety xin xHigh xspeed
xTemporary x
x
Traffic xcontrol xZones? x- xcorrect xanswers.Rerouting xtraffic xaround xthe xwork
xsite,
x
positioning xof xlaw xenforcement xofficers xin xthe xtemporary xtraffic xcontrol xzone, xand
xwork
x
zone
xtraining
x
What xkey xfeatures xwould xyou xneed xto xaddress xwhen xdeveloping xan xS.O.P. xfor xa xLift
xStation xfailure? x- xcorrect xanswers.Traffic xControl xPlan, xBy-Pass xconnections, xand
xSpill xcontainment x
x
What xtools xare xused xwith xa xpower xrodder? x- xcorrect xanswers.Spring xBlades x
x
Tools xused xfor xsewer xrodding xinclude: x- xcorrect xanswers.porcupine, xroot xsaw, xsquare
xbar x
x
cork
xscrew
x
What xtool xwould xyou xuse xto xcut xVCP xpipe? x- xcorrect xanswers.Chain xPipe xCutter x
x
Which xconditions xshould xa x gas detection
x x device x test x for? -
x x correct
xanswers.Hydrogen x
x
sulfide, xexplosive/flammable x gases,
xoxygen
x
What xdoes x"LEL" xmean xon xa xgas xdetection xmeter? x- xcorrect xanswers.Lower
xExplosive x
x
Limit
x
x
x
x
x
x
CWEA Collection Systems Maintenance
x x x
x
questions with complete solutions.
x x x
x
x
x
x
x
x
x
x
x
x
x
x
Why xare xgasoline xand xvolatile xsolvents xobjectionable xwhen xpresent xin xa xsewer? x-
xcorrect x
x
answers.They xproduce xan xexplosion
xhazard
x
You xshould xnever xattempt xto xinstall, xmaintain, xrepair xor xreplace xelectrical
xequipment x
panels, xcontrols, xwiring xor xcircuits xunless x- xcorrect xanswers.You xknow xwhat xyou
xare
x
doing, xare xqualified xand xare
xauthorized
x
What xare xthe xdifferent xareas xof xtraffic xzones? x- xcorrect xanswers.Advance xWarning
xArea, xTransition xArea, xActivity xArea x(buffer xspace xand xwork xspace), xTermination
xArea. xCould xbe x4 xor x5, xjustify xyour xanswer xon xthe xtest! x
x
why xshould xhydrogen xsulfide xbe xcontrolled? x- xcorrect xanswers.to xprotect xfrom
xcorrosion x
x
and
xodors
x
Personnel xentering xa xPermit xRequired xConfined xSpace xmust xhave xthe xfollowing
xtraining x
x
- xcorrect xanswers.entry xand
xrescue
x
To xfind xprotective xgear xbefore xapplication xof xa xproduct, xyou xshould: x-
xcorrect x
x
answers.look xat xthe
xMSDS
x
The xgas xmost xcommonly xassociated xwith xseptic xwastewater xis x-
xcorrect x
, x
answers.Hydrogen
xSulfide
x
The xlack xof xan xunpleasant xodor xin xa xmanhole, xlift xstation xor xother xstructures xdoes
xnot xalways xmean xthat xdangerous xgases xare xnot xpresent xbecause: x- xcorrect
xanswers.some xdangerous xgasses xare xodorless x(for xexample, xcarbon xmonoxide) x
x
x
What xare xthe xfour xconditions xnecessary xto xcreate xan xexplosion? x-
xcorrect
answers.combustible xgas, xadequate xoxygen, xheat xand xproper xmixing xof xgas xand
xoxygen
x
what xdoes xthe x"transition xarea" xmean xin xtraffic xcontrol? x- xcorrect xanswers.It xmoves
xtraffic x
x
out xof xits xnormal
xpath
x
what xelements xshould xbe xconsidered xto ximprove xworker xsafety xin xHigh xspeed
xTemporary x
x
Traffic xcontrol xZones? x- xcorrect xanswers.Rerouting xtraffic xaround xthe xwork
xsite,
x
positioning xof xlaw xenforcement xofficers xin xthe xtemporary xtraffic xcontrol xzone, xand
xwork
x
zone
xtraining
x
What xkey xfeatures xwould xyou xneed xto xaddress xwhen xdeveloping xan xS.O.P. xfor xa xLift
xStation xfailure? x- xcorrect xanswers.Traffic xControl xPlan, xBy-Pass xconnections, xand
xSpill xcontainment x
x
What xtools xare xused xwith xa xpower xrodder? x- xcorrect xanswers.Spring xBlades x
x
Tools xused xfor xsewer xrodding xinclude: x- xcorrect xanswers.porcupine, xroot xsaw, xsquare
xbar x
x
cork
xscrew
x
What xtool xwould xyou xuse xto xcut xVCP xpipe? x- xcorrect xanswers.Chain xPipe xCutter x
x
Which xconditions xshould xa x gas detection
x x device x test x for? -
x x correct
xanswers.Hydrogen x
x
sulfide, xexplosive/flammable x gases,
xoxygen
x
What xdoes x"LEL" xmean xon xa xgas xdetection xmeter? x- xcorrect xanswers.Lower
xExplosive x
x
Limit
x
