NCCER REVIEW EXAM Questions and Correct
Answers ALREADY GRADED A+ LATEST
VERSION 2025
Which of the following tools should be used to remove old packing from the
packing gland?
a. Screw driver
b. Pocket knife
c. Packing extractor
d. Needle nose - ANSWER: c. Packing extractor
When one controller is used to control two final elements, it is known as:
a. Redundancy
b. Bi-control
c. Twin positioning
d. Split-range - ANSWER: d. Split-range
A loop sheet contains all of the following information EXCEPT:
a. the instrument tag number
b. the location and connection section
c. the calibration and specification section
d. elevation of instruments - ANSWER: d. elevation of instruments
,As materials of construction for a device or piping system, the process fluids,
piping materials, and wetted parts of Instruments MUST be:
a. Analyzed
b. Compatible
c. Non-corrosive
d. Non-metallic. - ANSWER: b. Compatible
A drawing that illustrates the physical components of a system, including its
piping, valves, and instrumentation, is called a(n):
a. P & ID
b. logic diagram
c. installation drawing
d. equipment location drawing - ANSWER: a. P & ID
The position of the relay contacts and switches are shown in what state on
schematic diagrams?
a. Abnormal or alarm
b. Energized
c. De-energized or shelf
d. Operating - ANSWER: c. De-energized or shelf
A gauge pressure of 195 psi is roughly what in psia?
a. 151
b. 164
c. 178
,d. 210 - ANSWER: d. 210
At high altitudes, the atmospheric pressure is
a. higher than the atmospheric pressure at lower altitudes.
b. equal to the atmospheric pressure at lower altitudes.
c. lower than the atmospheric pressure at lower altitudes.
d. always above 30 MS. - ANSWER: c. lower than the atmospheric pressure at
lower altitudes.
Which of the following terms describes any pressure below atmospheric
pressure?
a. psig
b. psia
c. vacuum
d. psi - ANSWER: c. vacuum
When using a DP transmitter for flow measurement, what is the MOST
commonly used PRIMARY element?
a. Orifice plate.
b. Compensating bellow.
c. Annubar .
d. Venturi. - ANSWER: a. Orifice plate
If a control valve is controlling on and off the seat, it usually means the
a. controller is in manual.
, b. valve is oversized.
c. process line is too small.
d. process is over powering the spring in the valve. - ANSWER: a. controller is in
manual.
A cascade control is typically used to
a. equalize the pressure between two loops.
b. increase downward flow characteristics of fluids.
c. maximize the effects of secondary variable disturbances based on the primary
PV.
d. minimize the effects of secondary variable disturbances based on the primary
PV. - ANSWER: d. minimize the effects of secondary variable disturbances based
on the primary PV.
On what principle do mass flow meters operate?
a. Venturi
b. Coriolis
c. Annubar
d. Vortex - ANSWER: b. Coriolis
Integral control, also known as reset, describes a controller in which the output
rate of change is dependent upon the magnitude of the:
a. Integration
b. Input
c. Reset
d. Gain - ANSWER: d. Gain
Answers ALREADY GRADED A+ LATEST
VERSION 2025
Which of the following tools should be used to remove old packing from the
packing gland?
a. Screw driver
b. Pocket knife
c. Packing extractor
d. Needle nose - ANSWER: c. Packing extractor
When one controller is used to control two final elements, it is known as:
a. Redundancy
b. Bi-control
c. Twin positioning
d. Split-range - ANSWER: d. Split-range
A loop sheet contains all of the following information EXCEPT:
a. the instrument tag number
b. the location and connection section
c. the calibration and specification section
d. elevation of instruments - ANSWER: d. elevation of instruments
,As materials of construction for a device or piping system, the process fluids,
piping materials, and wetted parts of Instruments MUST be:
a. Analyzed
b. Compatible
c. Non-corrosive
d. Non-metallic. - ANSWER: b. Compatible
A drawing that illustrates the physical components of a system, including its
piping, valves, and instrumentation, is called a(n):
a. P & ID
b. logic diagram
c. installation drawing
d. equipment location drawing - ANSWER: a. P & ID
The position of the relay contacts and switches are shown in what state on
schematic diagrams?
a. Abnormal or alarm
b. Energized
c. De-energized or shelf
d. Operating - ANSWER: c. De-energized or shelf
A gauge pressure of 195 psi is roughly what in psia?
a. 151
b. 164
c. 178
,d. 210 - ANSWER: d. 210
At high altitudes, the atmospheric pressure is
a. higher than the atmospheric pressure at lower altitudes.
b. equal to the atmospheric pressure at lower altitudes.
c. lower than the atmospheric pressure at lower altitudes.
d. always above 30 MS. - ANSWER: c. lower than the atmospheric pressure at
lower altitudes.
Which of the following terms describes any pressure below atmospheric
pressure?
a. psig
b. psia
c. vacuum
d. psi - ANSWER: c. vacuum
When using a DP transmitter for flow measurement, what is the MOST
commonly used PRIMARY element?
a. Orifice plate.
b. Compensating bellow.
c. Annubar .
d. Venturi. - ANSWER: a. Orifice plate
If a control valve is controlling on and off the seat, it usually means the
a. controller is in manual.
, b. valve is oversized.
c. process line is too small.
d. process is over powering the spring in the valve. - ANSWER: a. controller is in
manual.
A cascade control is typically used to
a. equalize the pressure between two loops.
b. increase downward flow characteristics of fluids.
c. maximize the effects of secondary variable disturbances based on the primary
PV.
d. minimize the effects of secondary variable disturbances based on the primary
PV. - ANSWER: d. minimize the effects of secondary variable disturbances based
on the primary PV.
On what principle do mass flow meters operate?
a. Venturi
b. Coriolis
c. Annubar
d. Vortex - ANSWER: b. Coriolis
Integral control, also known as reset, describes a controller in which the output
rate of change is dependent upon the magnitude of the:
a. Integration
b. Input
c. Reset
d. Gain - ANSWER: d. Gain
