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INSTRUMENTATION
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NCCER TECH STUDY
GUIDE EXAM QUESTIONS
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WITH DETAILED
ANSWERS // 100%
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GUARANTEED PASS
A+ GRADED
,1. the density of a fluid affect the displacers
a. location
b. buoyancy
c. length
d. height
b
2. what mode must the controller be in before any changes are made to the process variable
a. manual
b. automatic
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c. shut down
d. power off
a
3. bills of material are found in
a. General Arrangement drawings
b. instrument detail drawings
c. piping orthographics
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d. p&id
a
4. when bench calibrating a temperature RTD transmitter, the the instrument technician should
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apply
a. hot air pressure
b cold air pressure
c. resistance
d. voltage
c
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5. before working on a d energized circuit containing a capacitor, what must be done
a. discharge the capacitor
b. re energize the circuit.
c. defibrillate the system
d. remove the lock outs
a
6. the minimum value of the measured process range is considered to be
,a. upper measured value
b. zero input value
c. span value
d. 3 PSI and 4 ma
d
7. a solenoid valve is often used to
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
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a
8. viscosity is analyzed in all the following ways except
a. the following Ball Method.
B. The viscositron method
c. the rotating disk method.
D. The capillary method
B
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9. the process parameter that is selected for control is called the
a. process rate.
B. Controlled energy.
C. Process set point.
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D. Controlled variable
d
10. optimal gain is the maximum allowable value of gain in which the system is.
a. Stable.
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B. Oscillating.
C. At its highest amplitude
D. Not responding
a
62. multiple instruments with in a loop share a common
a. Loop prefix
B. Loop suffix
C. Installation detail
D. Loop number
, d
11. carbon dioxide is produced commercially
A. By extraction from the atmosphere
B. As a byproduct of manufacturing
c. By extraction from ocean water
D. Through chemical bonding
b
63. what is a thermowell
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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
d
12. fhe most reliable relay is a/ an
A. EMR
B. Pneumatic
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C. SSR
D. L e d
c
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64. what is the major cause of death from electrical shock
A. Burns
B. Heart fibrillation
C. Head trauma
D arc flash
b
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13. the modulating control, the first step is to compute the 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
a
lo
INSTRUMENTATION
yc
NCCER TECH STUDY
GUIDE EXAM QUESTIONS
ud
WITH DETAILED
ANSWERS // 100%
st
GUARANTEED PASS
A+ GRADED
,1. the density of a fluid affect the displacers
a. location
b. buoyancy
c. length
d. height
b
2. what mode must the controller be in before any changes are made to the process variable
a. manual
b. automatic
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c. shut down
d. power off
a
3. bills of material are found in
a. General Arrangement drawings
b. instrument detail drawings
c. piping orthographics
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d. p&id
a
4. when bench calibrating a temperature RTD transmitter, the the instrument technician should
ud
apply
a. hot air pressure
b cold air pressure
c. resistance
d. voltage
c
st
5. before working on a d energized circuit containing a capacitor, what must be done
a. discharge the capacitor
b. re energize the circuit.
c. defibrillate the system
d. remove the lock outs
a
6. the minimum value of the measured process range is considered to be
,a. upper measured value
b. zero input value
c. span value
d. 3 PSI and 4 ma
d
7. a solenoid valve is often used to
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
ck
a
8. viscosity is analyzed in all the following ways except
a. the following Ball Method.
B. The viscositron method
c. the rotating disk method.
D. The capillary method
B
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9. the process parameter that is selected for control is called the
a. process rate.
B. Controlled energy.
C. Process set point.
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D. Controlled variable
d
10. optimal gain is the maximum allowable value of gain in which the system is.
a. Stable.
st
B. Oscillating.
C. At its highest amplitude
D. Not responding
a
62. multiple instruments with in a loop share a common
a. Loop prefix
B. Loop suffix
C. Installation detail
D. Loop number
, d
11. carbon dioxide is produced commercially
A. By extraction from the atmosphere
B. As a byproduct of manufacturing
c. By extraction from ocean water
D. Through chemical bonding
b
63. what is a thermowell
ck
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
d
12. fhe most reliable relay is a/ an
A. EMR
B. Pneumatic
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C. SSR
D. L e d
c
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64. what is the major cause of death from electrical shock
A. Burns
B. Heart fibrillation
C. Head trauma
D arc flash
b
st
13. the modulating control, the first step is to compute the 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
a
