NCCER INSTRUMENT TECH TEST QUESTIONS
WITH CORRECT ANSWERS 2025
What is theWfirstWstepWinWtroubleshootingWaWproblemWinWaWsystem?W-WCORRECTWANSWERW-
VerifyWthatWthereWisWaWproblem
WhereWcanWtheWappropriateWelevationWofWanWinstrumentWbeWfound?W-WCORRECTWANSWERW-
LocationWdrawing
ChemicalWcleaningWofWtubingWattachedWtoWinstrumentsWmayWcauseWdamageWtoWsensorW-
WCORRECTWANSWERW-Elements/
WhenWmakingW90-degreeWtubingWbend,WallowanceWforWspringbackWshouldWbe:W-WCORRECTWANSWERW-
1WtoW3Wdegrees
anWacceptableWtoolWgorWmarkingW360WdegreesWaroundWtheWoutsideWotWtubingWIsWa:W-
WCORRECTWANSWERW-Ferrule
WhatWprocessWvariableWisWdefinedWasWtheWamountWofWforceWexertedWbyWaWsubstanceWoverWaWgivenWunitW
ofWmeasure?W-WCORRECTWANSWERW-Pressure
BlorageWofWstadlWwoolWcanWbeWconsideredWaWfireWhazardWwhenWstoredWaroundW-WCORRECTWANSWERW-
Batterles/
TheWMINIMUMWvalueWofWtheWmeasuredWprocessWrangeWisWconsideredWtoWbe:W-WCORRECTWANSWERW-
3psiWandW4ma
bubblerWsystemWisWusedWtoWmeasure:W-WCORRECTWANSWERW-HeadWpressure
ToWpreventWtravelWdamageWtoWaWlimitWswitch,WuseWa(n)W-WCORRECTWANSWERW-MechanicalWstop/
WhenWusingWsoftWrolledWtubing,WitWmustWbeWunrolledWandWstraightened:W-WCORRECTWANSWERW-ByWhand
, WhereWwouldWanWinstrumentWfitterWfindWtheWPROPERWmethodWtoWconnectWanWinstrumentWtoWaWprocess
Wtap?W-WCORRECTWANSWERW-OnWanWinstallationWdetail
AWstrainWgaugeWmeasuresWtheWexternalWforceWappliedWtoWaWfineWwireWbyWcausingWaWchangeWinW-
WCORRECTWANSWERW-Resistance
WhichWofWtheWfollowingWpurgingWgasesWshouldWbeWavoidedWforWuseWwithWhydrocarbons?W-
WCORRECTWANSWERW-Oxygen
AWdifferentialWpressureWtransmitterWmountedWonWaWnon-ventedWvesselWisWusedWtoWmeasureWtheW-
WCORRECTWANSWERW-DensityWofWtheWproductWinWtheWvessel?
ConvertWtheWlengthW2'W10-3/4"WtoWitsWdecimalWequivalentW(inWfeet).W-WCORRECTWANSWERW-2.896
FlowWcanWbeWdescribedWinWunitsWofWallWofWtheWfollowingWEXCEPT:W-WCORRECTWANSWERW-Density
WhenWpressureWtesting,WtheWrequiredWdocumentationWincludes:W-WCORRECTWANSWERW-
Temperature,Wpressure,WandWtestWmedium
TheWMOSTWcommonWmethodWusedWtoWmeasureWtheWflowWofWliguidWinWaWpipeWisWtoWintroduceWaWrestricti
onWInWtheWpipWandWmeasureWthe:W-WCORRECTWANSWERW-Velocity
AfteriaWbendWisWcompleted,WallWtubingWwillWexhibit;W-WCORRECTWANSWERW-Springback
WhatWvalve,WREQUIRESWaW90-degreeWturnWtoWoperateWtheWvalveW100%WopenWorWclosed?W-
WCORRECTWANSWERW-BallWvalve/
WhereWisWtheWdrainWwireWterminaledWinWinstrumentWsystem?W-WCORRECTWANSWERW-
AtWtheWcontrolWcabinet.
WITH CORRECT ANSWERS 2025
What is theWfirstWstepWinWtroubleshootingWaWproblemWinWaWsystem?W-WCORRECTWANSWERW-
VerifyWthatWthereWisWaWproblem
WhereWcanWtheWappropriateWelevationWofWanWinstrumentWbeWfound?W-WCORRECTWANSWERW-
LocationWdrawing
ChemicalWcleaningWofWtubingWattachedWtoWinstrumentsWmayWcauseWdamageWtoWsensorW-
WCORRECTWANSWERW-Elements/
WhenWmakingW90-degreeWtubingWbend,WallowanceWforWspringbackWshouldWbe:W-WCORRECTWANSWERW-
1WtoW3Wdegrees
anWacceptableWtoolWgorWmarkingW360WdegreesWaroundWtheWoutsideWotWtubingWIsWa:W-
WCORRECTWANSWERW-Ferrule
WhatWprocessWvariableWisWdefinedWasWtheWamountWofWforceWexertedWbyWaWsubstanceWoverWaWgivenWunitW
ofWmeasure?W-WCORRECTWANSWERW-Pressure
BlorageWofWstadlWwoolWcanWbeWconsideredWaWfireWhazardWwhenWstoredWaroundW-WCORRECTWANSWERW-
Batterles/
TheWMINIMUMWvalueWofWtheWmeasuredWprocessWrangeWisWconsideredWtoWbe:W-WCORRECTWANSWERW-
3psiWandW4ma
bubblerWsystemWisWusedWtoWmeasure:W-WCORRECTWANSWERW-HeadWpressure
ToWpreventWtravelWdamageWtoWaWlimitWswitch,WuseWa(n)W-WCORRECTWANSWERW-MechanicalWstop/
WhenWusingWsoftWrolledWtubing,WitWmustWbeWunrolledWandWstraightened:W-WCORRECTWANSWERW-ByWhand
, WhereWwouldWanWinstrumentWfitterWfindWtheWPROPERWmethodWtoWconnectWanWinstrumentWtoWaWprocess
Wtap?W-WCORRECTWANSWERW-OnWanWinstallationWdetail
AWstrainWgaugeWmeasuresWtheWexternalWforceWappliedWtoWaWfineWwireWbyWcausingWaWchangeWinW-
WCORRECTWANSWERW-Resistance
WhichWofWtheWfollowingWpurgingWgasesWshouldWbeWavoidedWforWuseWwithWhydrocarbons?W-
WCORRECTWANSWERW-Oxygen
AWdifferentialWpressureWtransmitterWmountedWonWaWnon-ventedWvesselWisWusedWtoWmeasureWtheW-
WCORRECTWANSWERW-DensityWofWtheWproductWinWtheWvessel?
ConvertWtheWlengthW2'W10-3/4"WtoWitsWdecimalWequivalentW(inWfeet).W-WCORRECTWANSWERW-2.896
FlowWcanWbeWdescribedWinWunitsWofWallWofWtheWfollowingWEXCEPT:W-WCORRECTWANSWERW-Density
WhenWpressureWtesting,WtheWrequiredWdocumentationWincludes:W-WCORRECTWANSWERW-
Temperature,Wpressure,WandWtestWmedium
TheWMOSTWcommonWmethodWusedWtoWmeasureWtheWflowWofWliguidWinWaWpipeWisWtoWintroduceWaWrestricti
onWInWtheWpipWandWmeasureWthe:W-WCORRECTWANSWERW-Velocity
AfteriaWbendWisWcompleted,WallWtubingWwillWexhibit;W-WCORRECTWANSWERW-Springback
WhatWvalve,WREQUIRESWaW90-degreeWturnWtoWoperateWtheWvalveW100%WopenWorWclosed?W-
WCORRECTWANSWERW-BallWvalve/
WhereWisWtheWdrainWwireWterminaledWinWinstrumentWsystem?W-WCORRECTWANSWERW-
AtWtheWcontrolWcabinet.
