Instrument Tech NCCER Exam 2025/2026: Questions & Answers | Instrumentation NCCER Practice Test

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INSTRUMENT TECH NCCER EXAM
Questions & Answers | Latest Already
Graded A+ UPDATE 2025|2026!!
Instrument tech nccer questions!

1) When is the BEST time to document each loop check for commissio
p p p p p p p p p p p p



ning ? A. Prior to the start of inspection
p p p p p p p p p




B. When all test and inspection activities are complete
p p p p p p p p p




C. When updating information on a daily basis
p p p p p p p p




D. At the time each test is completed -
p p p p p p p p



..........ANSWER.......D. At the time each test is completed (INST LVL4)(1
p p p p p p p p p p



2410-16/ Section 3.2.0) p p




2) Teflon paste must not be used on :
p p p p p p p p p




A. Nitrogen service
p p p




B. Natural gas service
p p p p




C. Water service
p p p




D. Oxygen service -
p p p



..........ANSWER.......D. Oxygen service (INST LVL 1 )(12109-
p p p p p p p



14/Section 2.1.1) p




3) A 24VDC power supply is not working . With your multimeter you
p p p p p p p p p p p p p



verify no DC voltage . On the 120VAC input you measure 120V betwee
p p p p p p p p p p p p

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n hot and ground , and 72V between hot and neutral . What is the mos
p p p p p p p p p p p p p p p



t likely cause of this ?
p p p p p p




A. Lost the ground
p p p p




B. Lost the hot
p p p p




C. Lost the neutral
p p p p




D. Lost the fuse - ..........ANSWER.......C. Lost the neutral
p p p p p p p p




4) Gain increase when tube :
p p p p p p




A. Back bends are made
p p p p p




B. Bend radius increases
p p p p




C. Size decreases
p p p




D. Long radius elbows are used -
p p p p p p



..........ANSWER.......B. Bend radius increases (INST LVL 2)(12302-
p p p p p p p



15 section 2.1.1)
p p




5) A temperature measuring device that produces a voltage as the te
p p p p p p p p p p p



mperature changes is a / an : p p p p p p p




A. RTD p p




B. Thermistor
p p




C. Thermometer
p p




D. Thermocouple -
p p



..........ANSWER.......D. Thermocouple (INST LVL 2) (12110-
p p p p p p



15 section 1.2.2)
p p

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6) A pressure piping code is found in :
p p p p p p p p p




A. ANSI B 31.1
p p p p




B. NEC 690 .
p p p p




C. OSHA1910 .
p p p




D. ISA S 5.1 - ..........ANSWER.......A. ANSI B 31.1
p p p p p p p p




7) When marking tubing for cutting , the preferred method is
p p p p p p p p p p p




A. Scribe a mark into the tube with a sharp object .
p p p p p p p p p p p p




B. Mark the tube with a grease pencil
p p p p p p p p




C. Mark the tube with a felt tip pen
p p p p p p p p p




D. Mark the tube with a crayon -
p p p p p p p



..........ANSWER.......C. Mark the tube with a felt tip pen
p p p p p p p p p




8) An example of direct measurement indicator is a :
p p p p p p p p p p




A. Pressure gauge
p p p




B. Bulb thermometer
p p p




C. Sight glass
p p p




D. Flowmeter - ..........ANSWER.......C. Sight glass
p p p p p




9) On the image , how many hand valves are installed on Tank 1201C
p p p p p p p p p p p p p p




A. 1p p

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B. 2p p




C. 3p p




D. 4 - ..........ANSWER.......C. 3
p p p p




10) What is the first step in troubleshooting a problem in a system ?
p p p p p p p p p p p p p p




A. Turn off power to the instrument
p p p p p p p




B. Stimulate an input
p p p p




C. Verify that there is a problem
p p p p p p p




D. Stimulate an output -
p p p p



..........ANSWER.......C. Verify that there is a problem
p p p p p p p




11) Where can the appropriate elevation of an instrument be found ?
p p p p p p p p p p p p




A. Location drawing
p p p




B. P & ID
p p p p




C. Flow diagram
p p p




D. Loop drawing - ..........ANSWER.......A. Location drawing
p p p p p p




12) Chemical cleaning of tubing attached to instruments may cause d
p p p p p p p p p p



amage to sensor p p p




A. Electronics
p p




B. Paint
p p




C. Elements
p p