INSTRUMENTATION NCCER Updated Question
and Answer (2026/2027) | Verified Practice
Material | A+ Verified
• Gain increase when tube:
A. Back bends are made
B. Bend radius increases
C. Size decreases
D. Long radius elbows are used -✓✓ A. Back Bends are made
• A temperature measuring device that produces a voltage as the temperature changes
is a/an:
A. RTD
B. Thermistor
C. Thermometer
D. Thermocouple -✓✓ D. Thermocouple
• A pressure piping code is found in:
A. ANSI B 131.1
B . NEC 690.
C. OSHA1910.
D. ISA S 5 . 1 -✓✓ A. ANSI B 131.1
• When marking tubing for cutting, the preferred method is to:
A. Scribe a mark into the tube with a sharp object.
B. Mark the tube with a grease pencil
C. Mark the tube with a felt tip pen -✓✓ B. Mark the the tube with a grease pencil
• An example of a direct measurement indicator is a:
A. Pressure Gauge
B. Bulb thermometer C .Sightglass
D.Flowmeter -✓✓ A. Pressure Gauge
• In loop checks, all of the folowing are performed EXCEPT:
A. Continuity tests
B. Proving
C .Calibrating
D. Tuning -✓✓ D. Tuning
• If 75 volt DC potential is applied to a 25ohm load, the circuit current is:
A. 0.3 amps
B. 3.0 amps
C. 30 amps
,D. 300 milliamps -✓✓ B. 3.0 amps
• A valve has linear-fow characteristics when the:
A. Flow corresponds directly to the valve stem position
B. Differential pressure corresponds directly to the valve stem position
C. Flow is high enough to retract the valve stem
D. Flow does not pass through control loops -✓✓ B. Differential pressure corresponds
directly to the valve stem position
• What is a circuit current if 45VDC is applied to a 250ohm load?
A. 0.18 amp
B. 0.25 amp
C. 0.50 amp
D . 1.8 amp -✓✓ A. 0.18 amp
• All of the following valves are used to regulate flow EXCEPT:
A. Ball
B. Butterfly
C. Needle
D. Gate -✓✓ D. Gate
• The value of the dynamic variable desired in a process is the:
A. Signal
B. Set point
C. Resolution
D. Specific gravity -✓✓ B. Set point
• An acceptable tool for marking 360 degrees around the outside of tubing is a:
A. Laser level
B. Rubber band
C. String
D. Ferrule -✓✓ D. Ferrule
• 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
D. Temperature -✓✓ B. Pressure
• Storage of steel wool can be considered a fire hazard when stored around:
A. Matches
B .Flint
C. Batteries
D. Gas cans -✓✓ C. Batteries
, • The MINIMUM value of the measured process range is considered to be:
A. Upper measured value
B. Zero input value
C. Span value
D. 3psi and 4ma -✓✓ D. 3psi and 4ma
• A bubbler system is used to measure:
A. Specific Gravity
B. Head pressure
C. Magnetism
D. Conductance -✓✓ A. Specific Gravity
• To prevent travel damage to a limit switch, use a:
A .Mechanical stop
B. Larger switch
C. Diferentactuatorarm
D. Electronic-stop -✓✓ A. Mechanical stop
• In a controller, automatic control describes:
. The final control element responding to the error signal or change in process B. The
final control element as manipulated by the operator
C. The final element as controlled by the setpoint of the controller locally
D .How the controller receives its set point from a remote device -✓✓ C. The final
element as controlled by the setpoint of the controller locally
• When using soft rolled tubing, it must be unrolled and straightened:
A . By use of rollers
B. By using wooden mallets
C . By hand
D. Enough to enter a compression fitting -✓✓ C. By hand
• Where would an instrument fitter find the PROPER method to connect an instrument
to the process tap?
A. In a title block
B. On a flow diagram
C. In an instrument balloon
D. On an installation detail -✓✓ D. On an installation detail
• The part of a control valve that controls the plug proportionally to the output of the
controller is the:
A .Handwheel operator
B. Valve positioner
C. Operating spring
D. Diaphragm -✓✓ B. Valve positioner
and Answer (2026/2027) | Verified Practice
Material | A+ Verified
• Gain increase when tube:
A. Back bends are made
B. Bend radius increases
C. Size decreases
D. Long radius elbows are used -✓✓ A. Back Bends are made
• A temperature measuring device that produces a voltage as the temperature changes
is a/an:
A. RTD
B. Thermistor
C. Thermometer
D. Thermocouple -✓✓ D. Thermocouple
• A pressure piping code is found in:
A. ANSI B 131.1
B . NEC 690.
C. OSHA1910.
D. ISA S 5 . 1 -✓✓ A. ANSI B 131.1
• When marking tubing for cutting, the preferred method is to:
A. Scribe a mark into the tube with a sharp object.
B. Mark the tube with a grease pencil
C. Mark the tube with a felt tip pen -✓✓ B. Mark the the tube with a grease pencil
• An example of a direct measurement indicator is a:
A. Pressure Gauge
B. Bulb thermometer C .Sightglass
D.Flowmeter -✓✓ A. Pressure Gauge
• In loop checks, all of the folowing are performed EXCEPT:
A. Continuity tests
B. Proving
C .Calibrating
D. Tuning -✓✓ D. Tuning
• If 75 volt DC potential is applied to a 25ohm load, the circuit current is:
A. 0.3 amps
B. 3.0 amps
C. 30 amps
,D. 300 milliamps -✓✓ B. 3.0 amps
• A valve has linear-fow characteristics when the:
A. Flow corresponds directly to the valve stem position
B. Differential pressure corresponds directly to the valve stem position
C. Flow is high enough to retract the valve stem
D. Flow does not pass through control loops -✓✓ B. Differential pressure corresponds
directly to the valve stem position
• What is a circuit current if 45VDC is applied to a 250ohm load?
A. 0.18 amp
B. 0.25 amp
C. 0.50 amp
D . 1.8 amp -✓✓ A. 0.18 amp
• All of the following valves are used to regulate flow EXCEPT:
A. Ball
B. Butterfly
C. Needle
D. Gate -✓✓ D. Gate
• The value of the dynamic variable desired in a process is the:
A. Signal
B. Set point
C. Resolution
D. Specific gravity -✓✓ B. Set point
• An acceptable tool for marking 360 degrees around the outside of tubing is a:
A. Laser level
B. Rubber band
C. String
D. Ferrule -✓✓ D. Ferrule
• 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
D. Temperature -✓✓ B. Pressure
• Storage of steel wool can be considered a fire hazard when stored around:
A. Matches
B .Flint
C. Batteries
D. Gas cans -✓✓ C. Batteries
, • The MINIMUM value of the measured process range is considered to be:
A. Upper measured value
B. Zero input value
C. Span value
D. 3psi and 4ma -✓✓ D. 3psi and 4ma
• A bubbler system is used to measure:
A. Specific Gravity
B. Head pressure
C. Magnetism
D. Conductance -✓✓ A. Specific Gravity
• To prevent travel damage to a limit switch, use a:
A .Mechanical stop
B. Larger switch
C. Diferentactuatorarm
D. Electronic-stop -✓✓ A. Mechanical stop
• In a controller, automatic control describes:
. The final control element responding to the error signal or change in process B. The
final control element as manipulated by the operator
C. The final element as controlled by the setpoint of the controller locally
D .How the controller receives its set point from a remote device -✓✓ C. The final
element as controlled by the setpoint of the controller locally
• When using soft rolled tubing, it must be unrolled and straightened:
A . By use of rollers
B. By using wooden mallets
C . By hand
D. Enough to enter a compression fitting -✓✓ C. By hand
• Where would an instrument fitter find the PROPER method to connect an instrument
to the process tap?
A. In a title block
B. On a flow diagram
C. In an instrument balloon
D. On an installation detail -✓✓ D. On an installation detail
• The part of a control valve that controls the plug proportionally to the output of the
controller is the:
A .Handwheel operator
B. Valve positioner
C. Operating spring
D. Diaphragm -✓✓ B. Valve positioner
