Instrument Tech NCCER EXAM Questions and
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Terms in this set (231)
1) When is the BEST time to D. At the time each test is completed (INST LVL4)
document each loop check for (12410-16/ Section 3.2.0)
commissioning ? A. Prior to the start
of inspection
B. When all test and inspection
activities are complete
C. When updating information on a
daily basis
D. At the time each test is
completed
2) Teflon paste must not be used on D. Oxygen service (INST LVL 1 )(12109-14/Section
: 2.1.1)
A. Nitrogen service
B. Natural gas service
C. Water service
D. Oxygen service
,3) A 24VDC power supply is not C. Lost the neutral
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 ?
A. Lost the ground
B. Lost the hot
C. Lost the neutral
D. Lost the fuse
4) Gain increase when tube : B. Bend radius increases (INST LVL 2)(12302-15
A. Back bends are made section 2.1.1)
B. Bend radius increases
C. Size decreases
D. Long radius elbows are used
5) A temperature measuring device D. Thermocouple (INST LVL 2) (12110-15 section
that produces a voltage as the 1.2.2)
temperature changes is a / an :
A. RTD
B. Thermistor
C. Thermometer
D. Thermocouple
6) A pressure piping code is found A. ANSI B 31.1
in :
A. ANSI B 31.1
B. NEC 690 .
C. OSHA1910 .
D. ISA S 5.1
, 7) When marking tubing for cutting , C. Mark the tube with a felt tip pen
the preferred method is
A. Scribe a mark into the tube with
a sharp object .
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 C. Sight glass
measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer
C. Sight glass
D. Flowmeter
9) On the image , how many hand C. 3
valves are installed on Tank 1201C
A. 1
B. 2
C. 3
D. 4
10) What is the first step in C. Verify that there is a problem
troubleshooting a problem in a
system ?
A. Turn off power to the instrument
B. Stimulate an input
C. Verify that there is a problem
D. Stimulate an output
Answers (Verified Answers) Study Guide (latest
version verified for accuracy) | 2025\2026
Latest!!
Save
Terms in this set (231)
1) When is the BEST time to D. At the time each test is completed (INST LVL4)
document each loop check for (12410-16/ Section 3.2.0)
commissioning ? A. Prior to the start
of inspection
B. When all test and inspection
activities are complete
C. When updating information on a
daily basis
D. At the time each test is
completed
2) Teflon paste must not be used on D. Oxygen service (INST LVL 1 )(12109-14/Section
: 2.1.1)
A. Nitrogen service
B. Natural gas service
C. Water service
D. Oxygen service
,3) A 24VDC power supply is not C. Lost the neutral
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 ?
A. Lost the ground
B. Lost the hot
C. Lost the neutral
D. Lost the fuse
4) Gain increase when tube : B. Bend radius increases (INST LVL 2)(12302-15
A. Back bends are made section 2.1.1)
B. Bend radius increases
C. Size decreases
D. Long radius elbows are used
5) A temperature measuring device D. Thermocouple (INST LVL 2) (12110-15 section
that produces a voltage as the 1.2.2)
temperature changes is a / an :
A. RTD
B. Thermistor
C. Thermometer
D. Thermocouple
6) A pressure piping code is found A. ANSI B 31.1
in :
A. ANSI B 31.1
B. NEC 690 .
C. OSHA1910 .
D. ISA S 5.1
, 7) When marking tubing for cutting , C. Mark the tube with a felt tip pen
the preferred method is
A. Scribe a mark into the tube with
a sharp object .
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 C. Sight glass
measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer
C. Sight glass
D. Flowmeter
9) On the image , how many hand C. 3
valves are installed on Tank 1201C
A. 1
B. 2
C. 3
D. 4
10) What is the first step in C. Verify that there is a problem
troubleshooting a problem in a
system ?
A. Turn off power to the instrument
B. Stimulate an input
C. Verify that there is a problem
D. Stimulate an output
