INSTRUMENT TECH NCCER QUESTIONS AND CORRECT VERIFIED ANSWERS

INSTRUMENT TECH NCCER QUESTIONS
AND CORRECT VERIFIED ANSWERS
1)A2WhenA2isA2theA2BESTA2timeA2toA2documentA2eachA2loopA2checkA2forA2commissioningA
2?A2A.A2PriorA2toA2theA2startA2ofA2inspectionA2
B.A2WhenA2allA2testA2andA2inspectionA2activitiesA2areA2completeA2
C.A2WhenA2updatingA2informationA2onA2aA2dailyA2basisA2
D.A2AtA2theA2timeA2eachA2testA2isA2completedA2-A2Ans--
D.A2AtA2theA2timeA2eachA2testA2isA2completedA2(INSTA2LVL4)(12410-16/A2SectionA23.2.0)

2)A2TeflonA2pasteA2mustA2notA2beA2usedA2onA2:A2
A.A2NitrogenA2serviceA2
B.A2NaturalA2gasA2serviceA2
C.A2WaterA2serviceA2
D.A2OxygenA2serviceA2-A2Ans--D.A2OxygenA2serviceA2(INSTA2LVLA21A2)(12109-14/
SectionA22.1.1)

3)A2AA224VDCA2powerA2supplyA2isA2notA2workingA2.A2WithA2yourA2multimeterA2youA2verifyA2
noA2DCA2voltageA2.A2OnA2theA2120VACA2inputA2youA2measureA2120VA2betweenA2hotA2and
A2groundA2,A2andA272VA2betweenA2hotA2andA2neutralA2.A2WhatA2isA2theA2mostA2likelyA2caus
eA2ofA2thisA2?A2
A.A2LostA2theA2groundA2
B.A2LostA2theA2hotA2
C.A2LostA2theA2neutralA2
D.A2LostA2theA2fuseA2-A2Ans--C.A2LostA2theA2neutral

4)A2GainA2increaseA2whenA2tubeA2:A2
A.A2BackA2bendsA2areA2madeA2
B.A2BendA2radiusA2increasesA2
C.A2SizeA2decreasesA2
D.A2LongA2radiusA2elbowsA2areA2usedA2-A2Ans--
B.A2BendA2radiusA2increasesA2(INSTA2LVLA22)(12302-15A2sectionA22.1.1)

5)A2AA2temperatureA2measuringA2deviceA2thatA2producesA2aA2voltageA2asA2theA2temperatu
reA2changesA2isA2aA2/A2anA2:A2
A.A2RTDA2
B.A2ThermistorA2
C.A2ThermometerA2
D.A2ThermocoupleA2-A2Ans--D.A2ThermocoupleA2(INSTA2LVLA22)A2(12110-
15A2sectionA21.2.2)

6)A2AA2pressureA2pipingA2codeA2isA2foundA2inA2:A2
A.A2ANSIA2BA231.1A2
B.A2NECA2690A2.A2

,C.A2OSHA1910A2.A2
D.A2ISAA2SA25.1A2-A2Ans--A.A2ANSIA2BA231.1

7)A2WhenA2markingA2tubingA2forA2cuttingA2,A2theA2preferredA2methodA2isA2
A.A2ScribeA2aA2markA2intoA2theA2tubeA2withA2aA2sharpA2objectA2.A2
B.A2MarkA2theA2tubeA2withA2aA2greaseA2pencilA2
C.A2MarkA2theA2tubeA2withA2aA2feltA2tipA2penA2
D.A2MarkA2theA2tubeA2withA2aA2crayonA2-A2Ans--C.A2MarkA2theA2tubeA2withA2aA2feltA2tipA2pen

8)A2AnA2exampleA2ofA2directA2measurementA2indicatorA2isA2aA2:A2
A.A2PressureA2gaugeA2
B.A2BulbA2thermometerA2
C.A2SightA2glassA2
D.A2FlowmeterA2-A2Ans--C.A2SightA2glass

9)A2OnA2theA2imageA2,A2howA2manyA2handA2valvesA2areA2installedA2onA2TankA21201CA2
A.A21A2
B.A22A2
C.A23A2
D.A24A2-A2Ans--C.A23

10)A2WhatA2isA2theA2firstA2stepA2inA2troubleshootingA2aA2problemA2inA2aA2systemA2?A2
A.A2TurnA2offA2powerA2toA2theA2instrumentA2
B.A2StimulateA2anA2inputA2
C.A2VerifyA2thatA2thereA2isA2aA2problemA2
D.A2StimulateA2anA2outputA2-A2Ans--C.A2VerifyA2thatA2thereA2isA2aA2problem

11)A2WhereA2canA2theA2appropriateA2elevationA2ofA2anA2instrumentA2beA2foundA2?A2
A.A2LocationA2drawingA2
B.A2PA2&A2IDA2
C.A2FlowA2diagramA2
D.A2LoopA2drawingA2-A2Ans--A.A2LocationA2drawing

12)A2ChemicalA2cleaningA2ofA2tubingA2attachedA2toA2instrumentsA2mayA2causeA2damageA2
toA2sensorA2
A.A2ElectronicsA2
B.A2PaintA2
C.A2ElementsA2
D.A2BoltsA2-A2Ans--C.A2Elements

13)A2WhenA2makingA290A2-
A2degreeA2tubingA2bendA2,A2allowanceA2forA2springbackA2shouldA2beA2:A2A.A26A2toA28A2degr
eesA2
B.A24-5A2degreesA2
C.A21A2toA23A2degreesA2
D.A20A2degreesA2-A2Ans--C.A21A2toA23A2degrees

,14)A2CableA2shieldsA2shouldA2beA2connectedA2toA2theA2:A2
A.A2SignalA2groundA2referenceA2pointA2
B.A2GroundA2atA2eachA2accessibleA2locationA2
C.A2FirstA2accessibleA2groundingA2electrodeA2
D.A2RacewayA2orA2cableA2trayA2inA2whichA2theA2cableA2isA2routedA2-A2Ans--
B.A2GroundA2atA2eachA2accessibleA2location

15)A2AnA2employeeA2deA2energizesA2aA2pieceA2ofA2equipmentA2byA2removingA2theA2power
A2plugA2fromA2theA2outletA2.A2IfA2theA2employeeA2continuesA2toA2holdA2onA2toA2theA2powerA2
plugA2onceA2removedA2,A2thisA2employeeA2isA2saidA2toA2haveA2whatA2typeA2ofA2controlA2ov
erA2theA2energyA2potentialA2?A2
A.A2IsolationA2controlA2
B.A2LockoutA2tagoutA2
C.A2ExclusiveA2controlA2
D.A2RemoteA2controlA2-A2Ans--C.A2ExclusiveA2control

16)A2AA2compressorA2keepsA2blowingA2aA2PSVA2forA2troubleshootingA2aA2technicianA2sho
uldA2startA2lookingA2atA2
A.A2PowerA2switchA2settingA2
B.A2PressureA2switchA2deadbandA2
C.A2LevelA2switchA2settingA2
D.A2FloatA2swichA2deadbandA2-A2Ans--B.A2PressureA2switchA2deadband

17)A2InA2theA2figureA2providedA2theA2pipeA2lineA2thatA2carriesA2workingA2processA2fluidA2su
chA2asA2steamA2waterA2orA2gasA2isA2labeledA2asA2
A.A2AA2
B.A2BA2
C.A2CA2
D.A2DA2-A2Ans--A.A2A

18)A2AA2heatA2reactiveA2dryerA2isA2producingA2dampA2instrumentA2airA2whatA2couldA2beA2a
A2simpleA2fixA2
A.A2ReplaceA2desiccantA2
B.A2ChangeA2toA2aA2differentA2desiccantA2
C.A2AdjustA2theA2cycleA2timeA2
D.A2AddA2aA2secondA2setA2ofA2dryersA2-A2Ans--C.A2AdjustA2theA2cycleA2time

19)A2TypeA2JA2thermocoupleA2extensionA2wireA2isA2
A.A2WhiteA2&A2redA2
B.A2YellowA2&A2redA2
C.A2BlueA2&A2redA2
D.A2GreenA2&A2redA2-A2Ans--A.A2WhiteA2&A2red

20)A2WhichA2ofA2theA2followingA2gasesA2shouldA2beA2usedA2toA2purgeA2tubingA2andA2pipeA2
afterA2cleaningA2

, A.A2argonA2
B.A2AirA2
C.A2NitrogenA2
D.A2heliumA2-A2Ans--C.A2Nitrogen

21)A2WhenA2pressureA2testingA2,A2theA2requiredA2documentationA2includesA2:A2
A.A2SpecificationA2sheetsA2
B.A2TroubleshootingA2flowA2chartsA2
C.A2TemperatureA2,A2pressureA2,A2andA2testA2mediumA2
D.A2RequiredA2correctiveA2measuresA2-A2Ans--
C.A2TemperatureA2,A2pressureA2,A2andA2testA2medium

22)AnA2airA2-A2toA2-A2openA2valveA2usesA2
aA2:A2A.A2FailA2-A2inA2-A2positionA2actuatorA2
B.A2SpringA2-A2toA2-A2openA2actuatorA2
C.A2DualA2springA2actuatorA2
D.A2SpringA2-A2toA2-A2closeA2actuatorA2-A2Ans--D.A2Spring-to-closeA2Actuator

23)A2TheA2MOSTA2commonA2methodA2usedA2toA2measureA2theA2flowA2ofA2liquidA2inA2aA2pi
peA2isA2toA2introduceA2aA2restrictionA2inA2theA2pipeA2andA2measureA2theA2:A2
A.A2Velocity
B.A2PressureA2
C.A2DifferentialA2pressureA2
D.A2ViscosityA2-A2Ans--A.A2Velocity

24)A2WhatA2isA2theA2resistanceA2inA2theA2circuitA2?A2
A.A250A2ohmsA2
B.A2100A2ohmsA2
C.A2150A2ohmsA2
D.A2200A2ohmsA2-A2Ans--D.A2200A2ohms

25)A2AfterA2aA2bendA2isA2completedA2,A2allA2tubingA2willA2exhibitA2:A2
A.A2HardnessA2
B.A2SpringbackA2
C.A2BendingA2errorsA2
DiscolorationA2-A2Ans--B.A2Springback

26)A2WhatA2valveA2REQUIRESA2aA290A2-
A2degreeA2turnA2toA2operateA2theA2valveA2100A2%A2openA2orA2closedA2?A2
AA2GlobeA2valveA2
B.A2CheckA2valveA2
C.A2GateA2valveA2
D.A2BallA2valveA2-A2Ans--D.A2BallA2valve

27)A2WhereA2isA2theA2drainA2wireA2terminatedA2inA2instrumentA2systemA2?A2
A.A2AtA2theA2conduitA2