NCCER Core Final Exam Study Guide (2026/2027) – Practice Questions and Verified Answers

• NCCER Core Final 09/01/2026

Exam

NCCER Core Final Exam Study Guide
(2026/2027) – Practice Questions and Verified
Answers




101) What type of liquid is used for degreasing electronic equipment

A. Acid Solvents

B. Basic Solvents

C. Isopropyl alcohol

D. Water - Correct Answer :C. Isopropyl alcoholic



102) The high pressure gas line has a large self - operated regulator . Inlet pressure is 300psi ; Outlet
pressure is 100psi . The regulator is sluggish during load changes . What is the first step to improve the
operation of the regulator ?


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, • NCCER Core Final 09/01/2026

Exam
A. Repair the regulator

B. Lower the inlet pressure

C. Raise the outlet pressure

D. Replace the regulator - Correct Answer :B. Lower the inlet pressure



103) During acid cleaning a tubing run after installation it is very important to

A. Place a basin at the end of the run

B. Leave all valves open throughout the run

C. Vent high points

D. Drain low points - Correct Answer :D. Drain low points



104) On a field mounted controller , the setpoint is changed :

A. Automatically

B. Remotely

C. By the control room operator

D. Manually - Correct Answer :C. By the control room operator



105) When using a multimeter to drive loop current , the meter should be set to

A. MA

B. DC Voltage

C. Ohms

D. Output MA - Correct Answer :D. Output MA



106) In a non linear power supply the dc output voltage is regulated by

A. TDR

B. Capacitor

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Exam
C. Resistor

D. SCR - Correct Answer :D. SCR



107) The most common standard set symbols for instrumentation is from

A. NIST

B. ISA

C. API

D. NEC - Correct Answer :B. ISA



108) The final step in commissioning should be

A. Proving the loop

B. Calibrating the loop

C. Troubleshooting the loop

D. Recording the documents - Correct Answer :D. Recording the documents



109) When an I to P transducer is used on a pneumatic control valve that is set up to fail closed a signal
input of 4mA from the control room will

A. Open the control valve

B. Result in an air pressure of 3 psi which will close the control valve

C. Result in an air pressure of 15 psi which will open the control valve

D. Keep the control valve in its current position - Correct Answer :B. Result in an air pressure of 3 psi
which will close the control valve



110) When simulating a turbine sensing element during calibration of a flowmeter the instrument
technician might use

A. A pulse source and milliamp meter

B. An oscilloscope and a voltmeter

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Exam
C. A venturi tube and ohmmeter

D. An annubar and voltmeter - Correct Answer :B. An oscilloscope and a voltmeter



111) RTD elements are normally constructed of

A. Aluminum silver or iron

B. Platinum copper or nickel

C. Gold bronze or lead

D. Zinc cobalt or rhodium - Correct Answer :B. Platinum copper or nickel



112) The final step in commissioning is

A. Assembling drawing documents and test records

B. Verifying correct operation of safety device

C. Pressure testing loop

D. Performing electrical test - Correct Answer :A. Assembling drawing documents and test records



113) An acceptable tool for marking 360 degrees around the outside of tubing is a :

A. Laser level

B. Rubber band

C. String

D. Ferrule - Correct Answer :D. Ferrule



114) What process variable is defined as the amount of force exerted by a substance over a given unit
of measure ?

A. Flow

B. Pressure

C. Level


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