Science Engineering Mechanical Engineering
INSTRUMENTATION NCCER TEST STUDY GUIDE
NCCER Instrumentation Test Study
Guide | Verified Questions &
Answers | Latest 2026 Update
1. the density of a fluid affect the displacers b
a. location
b. buoyancy
c. length
d. height
2. what mode must the controller be in before any a
changes are made to the process variable
a. manual
b. automatic
c. shut down
d. power off
3. bills of material are found in a
a. General Arrangement drawings
b. instrument detail drawings
c. piping orthographics
d. p&id
4. when bench calibrating a temperature RTD transmitter, c
the the instrument technician should apply
a. hot air pressure
b cold air pressure
c. resistance
d. voltage
,5. before working on a d energized circuit containing a a
capacitor, what must be done
a. discharge the capacitor
b. re energize the circuit.
c. defibrillate the system
d. remove the lock outs
6. the minimum value of the measured process range is d
considered to be
a. upper measured value
b. zero input value
c. span value
d. 3 PSI and 4 ma
7. a solenoid valve is often used to a
a. direct air flow that opens or closes an air operated
valve.
b. regulate temperature.
c. regulate the amperage that is used to open or closed
control value.
D. Control the voltage that is used to open or closed
contracts
8. viscosity is analyzed in all the following ways except B
a. the following Ball Method.
B. The viscositron method
c. the rotating disk method.
D. The capillary method
9. the process parameter that is selected for control is d
called the
a. process rate.
B. Controlled energy.
C. Process set point.
D. Controlled variable
10. optimal gain is the maximum allowable value of gain in a
which the system is.
a. Stable.
B. Oscillating.
C. At its highest amplitude
D. Not responding
62. multiple instruments with in a loop share a common d
a. Loop prefix
B. Loop suffix
C. Installation detail
D. Loop number
,11. carbon dioxide is produced commercially b
A. By extraction from the atmosphere
B. As a byproduct of manufacturing
c. By extraction from ocean water
D. Through chemical bonding
63. what is a thermowell d
A. Temperature measuring device
B. Void space for demanding temperature fluctuations
C. Top side of a temperature transmitter
D. Protective device to house a thermocouple
12. fhe most reliable relay is a/ an c
A. EMR
B. Pneumatic
C. SSR
D. L e d
64. what is the major cause of death from electrical shock b
A. Burns
B. Heart fibrillation
C. Head trauma
D arc flash
13. the modulating control, the first step is to compute the a
air between control variable and set point. The second
step is to produce
A. Out signal
B. Modulating mode
C. Feedback set point
D. Process feedback
65. the hydrostatic pressure created in a 10 ft tank with 8 c
ft water level is
A. 3.4 PSI
B. 4.3 PSI
C. 8 PSI
D. 10 psi
14. a dashpot timer relay is b
a. Is well suited for fast on-off Cycles
B. Is a type of pneumatic relay
C. Has no moving parts
D. Requires a long reset time
66. an example of a direct measure indicator is a a
A. Pressure gauge
B. Bull thermometer
C. Sight glass
D. Flow meter
, 15. a photo sensor is a b
A. Double throw double pole switch
B. Silicon controlled rectifier
C. Variable resistor
D. Transformer
67. to create a NOR gate, add an inverter to the output of b
A. An a n d gate
B. on OR gate
C. And amplifier
D. A n a n d gate
16. most pneumatic receivers operate in the range of c
A. 1 - 5 PSI
B. 0 - 10 psi
C. 3 - 15 psi
D. 0 - 100 PSI
68. cutting Oils are classified as d
A. Light colored and transparent
B. Dark and transparent
C. Mineral and lard blends
D. Active and inactive
17. signal cable Shields should be connected to ground at a
A. One point in the signal path
B. Each accessible point in the signal path
C. Each end of the path
D. Each Junction point in the signal path
69. which of the following must be determined before a
selecting a pressure-reducing regulator
A. Capacity required
B. Spring load
C. Weight load
D. Required desiccant
18. what best determines their required torque for Bolt d
tensioning
A. Load requirements
B. Wash your type
c. Number of bolts use
D. Grade of Bolt
70. gaskets are usually specified for particular ranges of a
A. Temperature and pressure
B. Flow rate and temperature
C. Pressure and level
D. Temperature and level
INSTRUMENTATION NCCER TEST STUDY GUIDE
NCCER Instrumentation Test Study
Guide | Verified Questions &
Answers | Latest 2026 Update
1. the density of a fluid affect the displacers b
a. location
b. buoyancy
c. length
d. height
2. what mode must the controller be in before any a
changes are made to the process variable
a. manual
b. automatic
c. shut down
d. power off
3. bills of material are found in a
a. General Arrangement drawings
b. instrument detail drawings
c. piping orthographics
d. p&id
4. when bench calibrating a temperature RTD transmitter, c
the the instrument technician should apply
a. hot air pressure
b cold air pressure
c. resistance
d. voltage
,5. before working on a d energized circuit containing a a
capacitor, what must be done
a. discharge the capacitor
b. re energize the circuit.
c. defibrillate the system
d. remove the lock outs
6. the minimum value of the measured process range is d
considered to be
a. upper measured value
b. zero input value
c. span value
d. 3 PSI and 4 ma
7. a solenoid valve is often used to a
a. direct air flow that opens or closes an air operated
valve.
b. regulate temperature.
c. regulate the amperage that is used to open or closed
control value.
D. Control the voltage that is used to open or closed
contracts
8. viscosity is analyzed in all the following ways except B
a. the following Ball Method.
B. The viscositron method
c. the rotating disk method.
D. The capillary method
9. the process parameter that is selected for control is d
called the
a. process rate.
B. Controlled energy.
C. Process set point.
D. Controlled variable
10. optimal gain is the maximum allowable value of gain in a
which the system is.
a. Stable.
B. Oscillating.
C. At its highest amplitude
D. Not responding
62. multiple instruments with in a loop share a common d
a. Loop prefix
B. Loop suffix
C. Installation detail
D. Loop number
,11. carbon dioxide is produced commercially b
A. By extraction from the atmosphere
B. As a byproduct of manufacturing
c. By extraction from ocean water
D. Through chemical bonding
63. what is a thermowell d
A. Temperature measuring device
B. Void space for demanding temperature fluctuations
C. Top side of a temperature transmitter
D. Protective device to house a thermocouple
12. fhe most reliable relay is a/ an c
A. EMR
B. Pneumatic
C. SSR
D. L e d
64. what is the major cause of death from electrical shock b
A. Burns
B. Heart fibrillation
C. Head trauma
D arc flash
13. the modulating control, the first step is to compute the a
air between control variable and set point. The second
step is to produce
A. Out signal
B. Modulating mode
C. Feedback set point
D. Process feedback
65. the hydrostatic pressure created in a 10 ft tank with 8 c
ft water level is
A. 3.4 PSI
B. 4.3 PSI
C. 8 PSI
D. 10 psi
14. a dashpot timer relay is b
a. Is well suited for fast on-off Cycles
B. Is a type of pneumatic relay
C. Has no moving parts
D. Requires a long reset time
66. an example of a direct measure indicator is a a
A. Pressure gauge
B. Bull thermometer
C. Sight glass
D. Flow meter
, 15. a photo sensor is a b
A. Double throw double pole switch
B. Silicon controlled rectifier
C. Variable resistor
D. Transformer
67. to create a NOR gate, add an inverter to the output of b
A. An a n d gate
B. on OR gate
C. And amplifier
D. A n a n d gate
16. most pneumatic receivers operate in the range of c
A. 1 - 5 PSI
B. 0 - 10 psi
C. 3 - 15 psi
D. 0 - 100 PSI
68. cutting Oils are classified as d
A. Light colored and transparent
B. Dark and transparent
C. Mineral and lard blends
D. Active and inactive
17. signal cable Shields should be connected to ground at a
A. One point in the signal path
B. Each accessible point in the signal path
C. Each end of the path
D. Each Junction point in the signal path
69. which of the following must be determined before a
selecting a pressure-reducing regulator
A. Capacity required
B. Spring load
C. Weight load
D. Required desiccant
18. what best determines their required torque for Bolt d
tensioning
A. Load requirements
B. Wash your type
c. Number of bolts use
D. Grade of Bolt
70. gaskets are usually specified for particular ranges of a
A. Temperature and pressure
B. Flow rate and temperature
C. Pressure and level
D. Temperature and level
