Tech nccer Instrument questions Aa granteed pass 2024
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Tech nccer Instrument
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Tech Nccer Instrument
Tech nccer Instrument questions Aa granteed pass 2024 with more than 200 questions and answers
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 ...
Tech nccer Instrument questions Aa
granteed pass 2024 with more than 200
questions and answers
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 - ANSWERSD. 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
C. Water service
D. Oxygen service - ANSWERSD. 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 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 - ANSWERSC. Lost the neutral
4) Gain increase when tube :
A. Back bends are made
B. Bend radius increases
C. Size decreases
D. Long radius elbows are used - ANSWERSB. 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
B. Thermistor
C. Thermometer
D. Thermocouple - ANSWERSD. 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 - ANSWERSA. 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 - ANSWERSC. 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 - ANSWERSC. Sight glass
9) On the image , how many hand valves are installed on Tank 1201C
A. 1
B. 2
C. 3
D. 4 - ANSWERSC. 3
10) What is the first step in 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 - ANSWERSC. Verify that there is a problem
11) Where can the appropriate elevation of an instrument be found ?
A. Location drawing
B. P & ID
C. Flow diagram
D. Loop drawing - ANSWERSA. Location drawing
12) Chemical cleaning of tubing attached to instruments may cause damage to sensor
A. Electronics
B. Paint
C. Elements
D. Bolts - ANSWERSC. 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 - ANSWERSC. 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 - ANSWERSB. 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 - ANSWERSC. Exclusive control
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 - ANSWERSB. Pressure switch deadband
17) In the figure provided the pipe line that carries working process fluid such as steam
water or gas is labeled as
A. A
B. B
C. C
D. D - ANSWERSA. A
18) A heat reactive dryer is producing damp instrument air what could be a simple fix
A. Replace desiccant
B. Change to a different desiccant
C. Adjust the cycle time
D. Add a second set of dryers - ANSWERSC. Adjust the cycle time
19) Type J thermocouple extension wire is
A. White & red
B. Yellow & red
C. Blue & red
D. Green & red - ANSWERSA. 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 - ANSWERSC. Nitrogen
, 21) When pressure testing , the required documentation includes :
A. Specification sheets
B. Troubleshooting flow charts
C. Temperature , pressure , and test medium
D. Required corrective measures - ANSWERSC. Temperature , pressure , and test
medium
22)An air - to - open valve uses
a : A. Fail - in - position actuator
B. Spring - to - open actuator
C. Dual spring actuator
D. Spring - to - close actuator - ANSWERSD. Spring-to-close Actuator
23) The MOST common method used to measure the flow of liquid in a pipe is to
introduce a restriction in the pipe and measure the :
A. Velocity
B. Pressure
C. Differential pressure
D. Viscosity - ANSWERSA. Velocity
24) What is the resistance in the circuit ?
A. 50 ohms
B. 100 ohms
C. 150 ohms
D. 200 ohms - ANSWERSD. 200 ohms
25) After a bend is completed , all tubing will exhibit :
A. Hardness
B. Springback
C. Bending errors
Discoloration - ANSWERSB. Springback
26) What valve REQUIRES a 90 - degree turn to operate the valve 100 % open or
closed ?
A Globe valve
B. Check valve
C. Gate valve
D. Ball valve - ANSWERSD. Ball valve
27) Where is the drain wire terminated in instrument system ?
A. At the conduit
B. At the control cabinet .
C. At neither end
D. At both ends - ANSWERSB. At the control cabinet .
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