Page 1 of 214
Instrumentation NCCER PRACTICE EXAM ALL
750 QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
QUESTION: Before working on a de-energized circuit containing a capacitor, what must be
done?
discharge the capacitor
re-energize the circuit
defibrillate the system
remove the lockouts - ANSWER-discharge the capacitor
QUESTION: The MINIMUM value of the measured process range is considered to be:
upper measured value
3 psi and 4 ma
zero input value
span value - ANSWER-3 psi and 4 ma
1
, Page 2 of 214
QUESTION: A solenoid valve is often used to
regulate temperature
direct airflow that opens or closes an air operated valve
regulate the amp that is used to open/close control valve
control the voltage that is used to open/close contacts - ANSWER-direct airflow that opens or
closes an air-operated valve
QUESTION: Viscosity is analyzed in all of the following ways EXCEPT:
the falling all method
the viscositron method
the rotating disc method
the capillary method - ANSWER-the viscositron method
Q; The density of a liquid affects the displacer's:
2
, Page 3 of 214
length
height
buoyancy - ANSWER-buoyancy
QUESTION: What mode MUST the controller be in before any changes are made to the process
variable?
automatic
manual
shut-down
power off - ANSWER-manual
QUESTION: Bills of material are found in:
general arrangement drawings
P&ID
3
, Page 4 of 214
piping orthographics
instrument detail drawings - ANSWER-general arrangement drawings
QUESTION: When bench calibrating a temperature RTD transmitter, the instrument technician
should apply:
hot air pressure
cold air pressure
resistance
voltage - ANSWER-resistance
QUESTION: The process parameter that is selected for control is called the:
process rate
controlled energy
process setpoint
controlled variable - ANSWER-controlled variable
4
Instrumentation NCCER PRACTICE EXAM ALL
750 QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
QUESTION: Before working on a de-energized circuit containing a capacitor, what must be
done?
discharge the capacitor
re-energize the circuit
defibrillate the system
remove the lockouts - ANSWER-discharge the capacitor
QUESTION: The MINIMUM value of the measured process range is considered to be:
upper measured value
3 psi and 4 ma
zero input value
span value - ANSWER-3 psi and 4 ma
1
, Page 2 of 214
QUESTION: A solenoid valve is often used to
regulate temperature
direct airflow that opens or closes an air operated valve
regulate the amp that is used to open/close control valve
control the voltage that is used to open/close contacts - ANSWER-direct airflow that opens or
closes an air-operated valve
QUESTION: Viscosity is analyzed in all of the following ways EXCEPT:
the falling all method
the viscositron method
the rotating disc method
the capillary method - ANSWER-the viscositron method
Q; The density of a liquid affects the displacer's:
2
, Page 3 of 214
length
height
buoyancy - ANSWER-buoyancy
QUESTION: What mode MUST the controller be in before any changes are made to the process
variable?
automatic
manual
shut-down
power off - ANSWER-manual
QUESTION: Bills of material are found in:
general arrangement drawings
P&ID
3
, Page 4 of 214
piping orthographics
instrument detail drawings - ANSWER-general arrangement drawings
QUESTION: When bench calibrating a temperature RTD transmitter, the instrument technician
should apply:
hot air pressure
cold air pressure
resistance
voltage - ANSWER-resistance
QUESTION: The process parameter that is selected for control is called the:
process rate
controlled energy
process setpoint
controlled variable - ANSWER-controlled variable
4
