NCCER INSTRUMENTATION EXAM 2025
To accurately measure liquid level in a closed tank under pressure, use a:
A. Bubbletube
B. Diaphragm box
C. Float cable
D .Dp transmitter - ANSWER-D .Dp transmitter
OSHA requires that existing conditions be tested or inspected before beginning work on electrical
equipment by using a:
A. Multimeter
B. Voltage calibrator
C. Megger
D . Amp probe - ANSWER-A. Multimeter
Weight is defined as:
A. The amount of matter in an object
B. The force exerted by a mass due to gravity
C .How much mass a body has
D. The rate at which a mass is accelerated - ANSWER-B. The force exerted by a mass due to gravity
Deadband in a switch refers to the:
A. A range of process changes before switch actuation
B. Range of setpoint repeatability
C. Allowable overshoot of a set point
D. Range of process change between actuation point and reset - ANSWER-A. A range of process changes
before switch actuation
,The adjustment that allows pressure contacts to reset is called the:
A. Set point
B. Reset point
C .Deadband
D. Operating range - ANSWER-B. Reset point
The value of the dynamic variable desired in a process is the:
A. Signal
B . Setpoint
C. Resolution
D. Specific gravity - ANSWER-B . Setpoint
A nuclear measuring device is typically used to measure:
A . Level
B. Temperature
C. Pressure
D. pH - ANSWER-A . Level
What does a solenoid valve do?
A. Opens and closes valves
B. Serves as a actuator to open and close pneumatic and hydraulic valves
C.Transforms volts to millivolts
D. Actuates to open and close terminal blocks - ANSWER-B. Serves as a actuator to open and close
pneumatic and hydraulic valves
What is the psi reading on MOST gauge pressure indicators at atmospheric pressure ?
A. 100
B. 10
C. Zero
,D. Below zero - ANSWER-C. Zero
Proportional control is also known as:
A. Derivative control
B. Reset control
C. Gain control
D. On-off control - ANSWER-A. Derivative control
The documentation required ot loop check and commission are:
A. P&ID, loop diagrams, and instrument specification sheets
B. P&ID and electrical drawings
C. Electrical drawings and typical installation detail sheets
D. Logic diagrams, loop sheets, and instrument operation manuals - ANSWER-A. P&ID, loop diagrams,
and instrument specification sheets
In an instrument loop, where would wet instrument air show up first?
A. In the air piping
B . At the dryer
C .In the filter regulator
D. At the valve positioner - ANSWER-B . At the dryer
Bills of materials are found in:
A .General arrangement drawings
B. Instrument detail drawings
C. Piping orthographics
D. P&ID - ANSWER-A .General arrangement drawings
Signal cable shields should be connected to ground at:
A . 1 point in the signal path
, B. Each accessible point in the signal path
C. Each end of the signal path
D. Each junction point in the signal path - ANSWER-A . 1 point in the signal path
Where would an instrument fitter find a P&ID
number for a particular instrument?
A. In the instrument installation details
B. On pipe drawings
C. In an instrument index
D. On the instrument location drawing - ANSWER-C. In an instrument index
To measure level, which variable is critical for accurate measurement?
A. Specific Gravity
B. Pressure
C. Temperature
D. Flow - ANSWER-A. Specific Gravity
The ASMT factors affection required wall thickness of tubing include al of the following EXCEPT:
A .Working pressure
B. Working temperature
C. Support type
D. Material type - ANSWER-C. Support type
What instrument drawing shows an actual representation of a process operating sequence?
A .Orthographic drawing
B. Location drawing C .Isometric drawing
D. P&ID - ANSWER-D. P&ID
The three basic types of fluid flow are laminar flow, turbulent flow, and:
To accurately measure liquid level in a closed tank under pressure, use a:
A. Bubbletube
B. Diaphragm box
C. Float cable
D .Dp transmitter - ANSWER-D .Dp transmitter
OSHA requires that existing conditions be tested or inspected before beginning work on electrical
equipment by using a:
A. Multimeter
B. Voltage calibrator
C. Megger
D . Amp probe - ANSWER-A. Multimeter
Weight is defined as:
A. The amount of matter in an object
B. The force exerted by a mass due to gravity
C .How much mass a body has
D. The rate at which a mass is accelerated - ANSWER-B. The force exerted by a mass due to gravity
Deadband in a switch refers to the:
A. A range of process changes before switch actuation
B. Range of setpoint repeatability
C. Allowable overshoot of a set point
D. Range of process change between actuation point and reset - ANSWER-A. A range of process changes
before switch actuation
,The adjustment that allows pressure contacts to reset is called the:
A. Set point
B. Reset point
C .Deadband
D. Operating range - ANSWER-B. Reset point
The value of the dynamic variable desired in a process is the:
A. Signal
B . Setpoint
C. Resolution
D. Specific gravity - ANSWER-B . Setpoint
A nuclear measuring device is typically used to measure:
A . Level
B. Temperature
C. Pressure
D. pH - ANSWER-A . Level
What does a solenoid valve do?
A. Opens and closes valves
B. Serves as a actuator to open and close pneumatic and hydraulic valves
C.Transforms volts to millivolts
D. Actuates to open and close terminal blocks - ANSWER-B. Serves as a actuator to open and close
pneumatic and hydraulic valves
What is the psi reading on MOST gauge pressure indicators at atmospheric pressure ?
A. 100
B. 10
C. Zero
,D. Below zero - ANSWER-C. Zero
Proportional control is also known as:
A. Derivative control
B. Reset control
C. Gain control
D. On-off control - ANSWER-A. Derivative control
The documentation required ot loop check and commission are:
A. P&ID, loop diagrams, and instrument specification sheets
B. P&ID and electrical drawings
C. Electrical drawings and typical installation detail sheets
D. Logic diagrams, loop sheets, and instrument operation manuals - ANSWER-A. P&ID, loop diagrams,
and instrument specification sheets
In an instrument loop, where would wet instrument air show up first?
A. In the air piping
B . At the dryer
C .In the filter regulator
D. At the valve positioner - ANSWER-B . At the dryer
Bills of materials are found in:
A .General arrangement drawings
B. Instrument detail drawings
C. Piping orthographics
D. P&ID - ANSWER-A .General arrangement drawings
Signal cable shields should be connected to ground at:
A . 1 point in the signal path
, B. Each accessible point in the signal path
C. Each end of the signal path
D. Each junction point in the signal path - ANSWER-A . 1 point in the signal path
Where would an instrument fitter find a P&ID
number for a particular instrument?
A. In the instrument installation details
B. On pipe drawings
C. In an instrument index
D. On the instrument location drawing - ANSWER-C. In an instrument index
To measure level, which variable is critical for accurate measurement?
A. Specific Gravity
B. Pressure
C. Temperature
D. Flow - ANSWER-A. Specific Gravity
The ASMT factors affection required wall thickness of tubing include al of the following EXCEPT:
A .Working pressure
B. Working temperature
C. Support type
D. Material type - ANSWER-C. Support type
What instrument drawing shows an actual representation of a process operating sequence?
A .Orthographic drawing
B. Location drawing C .Isometric drawing
D. P&ID - ANSWER-D. P&ID
The three basic types of fluid flow are laminar flow, turbulent flow, and:
