Instrument Tech NCCER Questions and Answers Rated A
1) When is the BEST time to document each loop check for
commissioning ? A. Prior to the start of inspection
D. At the time each test is completed (INST
B. When all test and inspection activities are complete
LVL4)(12410-16/ Section 3.2.0)
C. When updating information on a daily basis
D. At the time each test is completed
2) Teflon paste must not be used on :
A. Nitrogen service
B. Natural gas service D. Oxygen service (INST LVL 1 )(12109-14/Section 2.1.1)
C. Water service
D. Oxygen service
3) A 24VDC power supply is not working . With your
multimeter you verify no DC voltage . On the 120VAC input
you measure 120V between hot and ground , and 72V
between hot and neutral . What is the most likely cause
of this ? C. Lost the neutral
A. Lost the ground
B. Lost the hot
C. Lost the neutral
D. Lost the fuse
4) Gain increase when tube :
A. Back bends are made
B. Bend radius increases (INST LVL 2)(12302-15 section
B. Bend radius increases
2.1.1)
C. Size decreases
D. Long radius elbows are used
5) A temperature measuring device that produces a volt-
age as the temperature changes is a / an :
A. RTD
D. Thermocouple (INST LVL 2) (12110-15 section 1.2.2)
B. Thermistor
C. Thermometer
D. Thermocouple
, Instrument Tech NCCER Questions and Answers Rated A
6) A pressure piping code is found in :
A. ANSI B 31.1
B. NEC 690 . A. ANSI B 31.1
C. OSHA1910 .
D. ISA S 5.1
7) When marking tubing for cutting , the preferred
method is
A. Scribe a mark into the tube with a sharp object .
C. Mark the tube with a felt tip pen
B. Mark the tube with a grease pencil
C. Mark the tube with a felt tip pen
D. Mark the tube with a crayon
8) An example of direct measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer C. Sight glass
C. Sight glass
D. Flowmeter
9) On the image , how many hand valves are installed on
Tank 1201C C. 3
A. 1
B. 2
C. 3
D. 4
10) What is the first step in troubleshooting a problem in
a system ?
A. Turn ott power to the instrument
C. Verify that there is a problem
B. Stimulate an input
C. Verify that there is a problem
D. Stimulate an output
11) Where can the appropriate elevation of an instrument
be found ?
, A. Location drawing
B. P & ID
A. Location drawing
C. Flow diagram
D. Loop drawing
12) Chemical cleaning of tubing attached to instruments
may cause damage to sensor
A. Electronics
C. Elements
B. Paint
C. Elements
D. Bolts
13) When making 90 - degree tubing bend , allowance for
springback should be : A. 6 to 8 degrees
B. 4-5 degrees C.1 to 3 degrees
C. 1 to 3 degrees
D. 0 degrees
14) Cable shields should be connected to the :
A. Signal ground reference point
B. Ground at each accessible location B. Ground at each accessible location
C. First accessible grounding electrode
D. Raceway or cable tray in which the cable is routed
15) An employee de energizes a piece of equipment by
removing the power plug from the outlet . If the employee
continues to hold on to the power plug once removed ,
this employee is said to have what type of control over the
energy potential ? C. Exclusive control
A. Isolation control
B. Lockout tagout
C. Exclusive control
D. Remote control
, 16) A compressor keeps blowing a PSV for troubleshoot-
ing a technician should start looking at
A. Power switch setting
B. Pressure switch deadband
B. Pressure switch deadband
C. Level switch setting
D. Float swich deadband
17) In the figure provided the pipe line that carries work-
ing process fluid such as steam water or gas is labeled as
A. A
A. A
B. B
C. C
D. D
18) A heat reactive dryer is producing damp instrument
air what could be a simple fix
A. Replace desiccant
C. Adjust the cycle time
B. Change to a ditterent desiccant
C. Adjust the cycle time
D. Add a second set of dryers
19) Type J thermocouple extension wire is
A. White & red
B. Yellow & red A. White & red
C. Blue & red
D. Green & red
20) Which of the following gases should be used to purge
tubing and pipe after cleaning
A. argon
C. Nitrogen
B. Air
C. Nitrogen
D. helium
1) When is the BEST time to document each loop check for
commissioning ? A. Prior to the start of inspection
D. At the time each test is completed (INST
B. When all test and inspection activities are complete
LVL4)(12410-16/ Section 3.2.0)
C. When updating information on a daily basis
D. At the time each test is completed
2) Teflon paste must not be used on :
A. Nitrogen service
B. Natural gas service D. Oxygen service (INST LVL 1 )(12109-14/Section 2.1.1)
C. Water service
D. Oxygen service
3) A 24VDC power supply is not working . With your
multimeter you verify no DC voltage . On the 120VAC input
you measure 120V between hot and ground , and 72V
between hot and neutral . What is the most likely cause
of this ? C. Lost the neutral
A. Lost the ground
B. Lost the hot
C. Lost the neutral
D. Lost the fuse
4) Gain increase when tube :
A. Back bends are made
B. Bend radius increases (INST LVL 2)(12302-15 section
B. Bend radius increases
2.1.1)
C. Size decreases
D. Long radius elbows are used
5) A temperature measuring device that produces a volt-
age as the temperature changes is a / an :
A. RTD
D. Thermocouple (INST LVL 2) (12110-15 section 1.2.2)
B. Thermistor
C. Thermometer
D. Thermocouple
, Instrument Tech NCCER Questions and Answers Rated A
6) A pressure piping code is found in :
A. ANSI B 31.1
B. NEC 690 . A. ANSI B 31.1
C. OSHA1910 .
D. ISA S 5.1
7) When marking tubing for cutting , the preferred
method is
A. Scribe a mark into the tube with a sharp object .
C. Mark the tube with a felt tip pen
B. Mark the tube with a grease pencil
C. Mark the tube with a felt tip pen
D. Mark the tube with a crayon
8) An example of direct measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer C. Sight glass
C. Sight glass
D. Flowmeter
9) On the image , how many hand valves are installed on
Tank 1201C C. 3
A. 1
B. 2
C. 3
D. 4
10) What is the first step in troubleshooting a problem in
a system ?
A. Turn ott power to the instrument
C. Verify that there is a problem
B. Stimulate an input
C. Verify that there is a problem
D. Stimulate an output
11) Where can the appropriate elevation of an instrument
be found ?
, A. Location drawing
B. P & ID
A. Location drawing
C. Flow diagram
D. Loop drawing
12) Chemical cleaning of tubing attached to instruments
may cause damage to sensor
A. Electronics
C. Elements
B. Paint
C. Elements
D. Bolts
13) When making 90 - degree tubing bend , allowance for
springback should be : A. 6 to 8 degrees
B. 4-5 degrees C.1 to 3 degrees
C. 1 to 3 degrees
D. 0 degrees
14) Cable shields should be connected to the :
A. Signal ground reference point
B. Ground at each accessible location B. Ground at each accessible location
C. First accessible grounding electrode
D. Raceway or cable tray in which the cable is routed
15) An employee de energizes a piece of equipment by
removing the power plug from the outlet . If the employee
continues to hold on to the power plug once removed ,
this employee is said to have what type of control over the
energy potential ? C. Exclusive control
A. Isolation control
B. Lockout tagout
C. Exclusive control
D. Remote control
, 16) A compressor keeps blowing a PSV for troubleshoot-
ing a technician should start looking at
A. Power switch setting
B. Pressure switch deadband
B. Pressure switch deadband
C. Level switch setting
D. Float swich deadband
17) In the figure provided the pipe line that carries work-
ing process fluid such as steam water or gas is labeled as
A. A
A. A
B. B
C. C
D. D
18) A heat reactive dryer is producing damp instrument
air what could be a simple fix
A. Replace desiccant
C. Adjust the cycle time
B. Change to a ditterent desiccant
C. Adjust the cycle time
D. Add a second set of dryers
19) Type J thermocouple extension wire is
A. White & red
B. Yellow & red A. White & red
C. Blue & red
D. Green & red
20) Which of the following gases should be used to purge
tubing and pipe after cleaning
A. argon
C. Nitrogen
B. Air
C. Nitrogen
D. helium
