INSTRUMENTATION NCCER QUESTIONS WITH CORRECT ANSWERS 2025

INSTRUMENTATION NCCER QUESTIONS
WITH CORRECT ANSWERS 2025
1)WTheWthreeWfundamentalWunitsWofWallWphysicalWquantitiesWareWlength,Wmass,WandW_________?W

a)WPressure

b)WTemperatureW

c)WMatter

d)WTimeW-WCORRECTWANSWERW-d)WTime



2)WTheWmeter-kilogram-secondW(MKS)WsystemWandWtheWcentimeter-gram-
secondW(CGS)WareWpartWofWtheWEnglishWsystemWofWmeasure?W



a)WTrue

b)FalseW-WCORRECTWANSWERW-b)WFalse



3)WHowWmanyWinchesWareWinWoneWmeter?W



a)W1.52

b)W12

c)W39.37

d)W40W-WCORRECTWANSWERW-c)W39.37



4)WWhenWconvertingWtheWdimensionsWofWaW________,WonlyWtheWradiusWhasWaWmeasuredWdimensionWtha
tWmustWbeWconverted?



a)WCircle

b)WRectangle

c)WCylinder

d)WBoxW-WCORRECTWANSWERW-a)WCircle

,5)WHowWmanyWmetersWareWinW9.843Wfeet?W



a)W1

b)W2

c)W3

d)W4W-WCORRECTWANSWERW-c)W3



6)WWhatWisWtheWmostWcommonWwetWmeasuringWunitWinWtheWmetricWsystem?W



a)WQuart

b)WLiter

c)WPint

d)WGallonW-WCORRECTWANSWERW-b)WLiter



7)WTheWamountWofWmatterWinWanWobjectWisWitsW_________?W



a)WWeight

b)WForce

c)WMass

d)WPressureW-WCORRECTWANSWERW-c)WMass



8)WTheWnewtonWcanWbeWdefinedWasWtheWamountWofWforceWrequiredWtoWaccelerateWoneWkilogramWatWtheW
rateWofWoneWmeterWperWsecondWperWsecond?



a)WTrue

b)WFalseW-WCORRECTWANSWERW-a)WTrue



9)WHydrostaticWpressureWisWalsoWreferredWtoWasW_______Wpressure?W

,a)WBase

b)WInteriorW

c)WVessel

d)WHeadW-WCORRECTWANSWERW-d)WHead



10)WTheWKelvinWscaleWisWsometimesWreferredWtoWasWtheW_________Wscale?



a)WAbsoluteWCelcius

b)WRankine

c)WFahrenheit

d)WDegreesWCentigradeW-WCORRECTWANSWERW-a)WAbsoluteWCelsius



11)W110CWisWequalWtoW__________?W



a)W110WF

b)W210WF

c)W230WF

d)W250WFW-WCORRECTWANSWERW-c)W230WF



12)WAWfluidWflowingWinWaWpipeWexertsWpressureWinWtwoWdifferentWdirections,WagainstWbothWtheWwallsWofWt
heWpipeWandWtheWdirectionWofWflow.



a)WTrue

b)WFalseW-WCORRECTWANSWERW-a)WTrue



13)WMassWflowWratesWcanWbeWcalculatedWorWcomputedWeasilyWbyWdeterminingWorWsensingWtemperatureW
andW/WorW_______.



a)WVelocity

, b)WPressure

c)WVolume

d)WDensityW-WCORRECTWANSWERW-b)WPressure



14)WWhatWisWtheWsquareWrootWofW144?



a)W12

b)W13W

c)W14W

d)W15W-WCORRECTWANSWERW-a)W12



15)W__________WconversionWinvolvesWchangingWfromWoneWunitWofWmeasurementWtoWanother,WalwaysWwi
thWregardsWtoWtheWsameWphysicalWquantity.



a)WPolarity

b)WTemperature

c)WUnit

d)WVolumeW-WCORRECTWANSWERW-c)WUnit



16)WForWaWnumberWthatWdoesWnotWcontainWaWdecimalWpoint,WtheWleft-mostWnon-
zeroWdigitWisWtheWMSDWandWtheWright-mostWnon-zeroWdigitWisWtheWLSD.



a)WTrue

b)WFalseW-WCORRECTWANSWERW-a)WTrue



17)WTheWlengthWofWaWcalibratedWscaleWneedsWtoWbeWconvertedWfromWinchesWtoWmeters.WTheWscaleWisW70W
inches.WWhatWisWtheWlengthWofWtheWscaleWinWmeters?



a)W.178

b)W1.78