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INSTRUMENT TECH
NCCER EXAM QUESTIONS
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WITH DETAILED
ANSWERS // 100%
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GUARANTEED PASS A+
GRADED
,1) When is the BEST time to document each loop check for 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 - ANS D. At the time each test is completed (INST
LVL4)(12410-16/ Section 3.2.0)
2) Teflon paste must not be used on :
A. Nitrogen service
B. Natural gas service
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C. Water service
D. Oxygen service - ANS D. Oxygen service (INST LVL 1 )(12109-14/Section 2.1.1)
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
B. Lost the hot
C. Lost the neutral
D. Lost the fuse - ANS C. Lost the neutral
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neutral . What is the most likely cause of this ?
A. Lost the ground
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4) Gain increase when tube :
A. Back bends are made
B. Bend radius increases
C. Size decreases
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D. Long radius elbows are used - ANS B. Bend radius increases (INST LVL 2)(12302-15
section 2.1.1)
5) A temperature measuring device that produces a voltage as the temperature changes is a /
an :
A. RTD
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B. Thermistor
C. Thermometer
D. Thermocouple - ANS D. Thermocouple (INST LVL 2) (12110-15 section 1.2.2)
6) A pressure piping code is found in :
A. ANSI B 31.1
B. NEC 690 .
C. OSHA1910 .
D. ISA S 5.1 - ANS A. ANSI B 31.1
7) When marking tubing for cutting , 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 - ANS C. Mark the tube with a felt tip pen
8) An example of direct measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer
C. Sight glass
D. Flowmeter - ANS C. Sight glass
9) On the image , how many hand valves are installed on Tank 1201C
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A. 1
B. 2
C. 3
D. 4 - ANS C. 3
B. Stimulate an input
C. Verify that there is a problem
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10) What is the first step in troubleshooting a problem in a system ?
A. Turn off power to the instrument
D. Stimulate an output - ANS C. Verify that there is a problem
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11) Where can the appropriate elevation of an instrument be found ?
A. Location drawing
B. P & ID
C. Flow diagram
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D. Loop drawing - ANS A. Location drawing
12) Chemical cleaning of tubing attached to instruments may cause damage to sensor
A. Electronics
B. Paint
C. Elements
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D. Bolts - ANS C. Elements
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
D. 0 degrees - ANS C. 1 to 3 degrees
14) Cable shields should be connected to the :
A. Signal ground reference point
B. Ground at each accessible location
, C. First accessible grounding electrode
D. Raceway or cable tray in which the cable is routed - ANS B. Ground at each accessible
location
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 ?
A. Isolation control
B. Lockout tagout
C. Exclusive control
D. Remote control - ANS C. Exclusive control
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16) A compressor keeps blowing a PSV for troubleshooting a technician should start looking at
A. Power switch setting
B. Pressure switch deadband
C. Level switch setting
D. Float swich deadband - ANS B. Pressure switch deadband
gas is labeled as
A. A
B. B
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17) In the figure provided the pipe line that carries working process fluid such as steam water or
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C. C
D. D - ANS A. A
18) A heat reactive dryer is producing damp instrument air what could be a simple fix
A. Replace desiccant
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B. Change to a different desiccant
C. Adjust the cycle time
D. Add a second set of dryers - ANS C. Adjust the cycle time
19) Type J thermocouple extension wire is
A. White & red
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B. Yellow & red
C. Blue & red
D. Green & red - ANS A. White & red
20) Which of the following gases should be used to purge tubing and pipe after cleaning
A. argon
B. Air
C. Nitrogen
D. helium - ANS C. Nitrogen
21) When pressure testing , the required documentation includes :
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INSTRUMENT TECH
NCCER EXAM QUESTIONS
ud
WITH DETAILED
ANSWERS // 100%
st
GUARANTEED PASS A+
GRADED
,1) When is the BEST time to document each loop check for 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 - ANS D. At the time each test is completed (INST
LVL4)(12410-16/ Section 3.2.0)
2) Teflon paste must not be used on :
A. Nitrogen service
B. Natural gas service
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C. Water service
D. Oxygen service - ANS D. Oxygen service (INST LVL 1 )(12109-14/Section 2.1.1)
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
B. Lost the hot
C. Lost the neutral
D. Lost the fuse - ANS C. Lost the neutral
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neutral . What is the most likely cause of this ?
A. Lost the ground
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4) Gain increase when tube :
A. Back bends are made
B. Bend radius increases
C. Size decreases
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D. Long radius elbows are used - ANS B. Bend radius increases (INST LVL 2)(12302-15
section 2.1.1)
5) A temperature measuring device that produces a voltage as the temperature changes is a /
an :
A. RTD
st
B. Thermistor
C. Thermometer
D. Thermocouple - ANS D. Thermocouple (INST LVL 2) (12110-15 section 1.2.2)
6) A pressure piping code is found in :
A. ANSI B 31.1
B. NEC 690 .
C. OSHA1910 .
D. ISA S 5.1 - ANS A. ANSI B 31.1
7) When marking tubing for cutting , 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 - ANS C. Mark the tube with a felt tip pen
8) An example of direct measurement indicator is a :
A. Pressure gauge
B. Bulb thermometer
C. Sight glass
D. Flowmeter - ANS C. Sight glass
9) On the image , how many hand valves are installed on Tank 1201C
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A. 1
B. 2
C. 3
D. 4 - ANS C. 3
B. Stimulate an input
C. Verify that there is a problem
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10) What is the first step in troubleshooting a problem in a system ?
A. Turn off power to the instrument
D. Stimulate an output - ANS C. Verify that there is a problem
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11) Where can the appropriate elevation of an instrument be found ?
A. Location drawing
B. P & ID
C. Flow diagram
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D. Loop drawing - ANS A. Location drawing
12) Chemical cleaning of tubing attached to instruments may cause damage to sensor
A. Electronics
B. Paint
C. Elements
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D. Bolts - ANS C. Elements
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
D. 0 degrees - ANS C. 1 to 3 degrees
14) Cable shields should be connected to the :
A. Signal ground reference point
B. Ground at each accessible location
, C. First accessible grounding electrode
D. Raceway or cable tray in which the cable is routed - ANS B. Ground at each accessible
location
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 ?
A. Isolation control
B. Lockout tagout
C. Exclusive control
D. Remote control - ANS C. Exclusive control
ck
16) A compressor keeps blowing a PSV for troubleshooting a technician should start looking at
A. Power switch setting
B. Pressure switch deadband
C. Level switch setting
D. Float swich deadband - ANS B. Pressure switch deadband
gas is labeled as
A. A
B. B
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17) In the figure provided the pipe line that carries working process fluid such as steam water or
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C. C
D. D - ANS A. A
18) A heat reactive dryer is producing damp instrument air what could be a simple fix
A. Replace desiccant
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B. Change to a different desiccant
C. Adjust the cycle time
D. Add a second set of dryers - ANS C. Adjust the cycle time
19) Type J thermocouple extension wire is
A. White & red
st
B. Yellow & red
C. Blue & red
D. Green & red - ANS A. White & red
20) Which of the following gases should be used to purge tubing and pipe after cleaning
A. argon
B. Air
C. Nitrogen
D. helium - ANS C. Nitrogen
21) When pressure testing , the required documentation includes :
