1|Page
Certificate of Qualification Instrumentation and
Control Technician (447A) Exam||VERIFIED EXAM!!!||
Questions with Correct Answers and explanations
LATEST THIS YEAR -JUST RELEASED.pdf|| NEWEST
EXAM!!!
Identify the condition that could cause pressure gauge A to
register a greater pressure than pressure gauge B in this
liquid process:
A) A high rate of flow from left to right (top to bottom
through the vessel)
B) An extremely dense liquid
C) Liquid boiling inside the vessel
D) A high rate of flow from right to left (bottom to top
through the vessel)
E) Pressure gauge B calibrated for absolute pressure units
instead of gauge units - Answer-A
Suppose a storage vessel holds a liquid of unpredictable
density. Identify which level measurement technology will
not maintain accurate measurement of liquid height in the
vessel as the liquid density changes:
A. Sightglass
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B. Guided-wave radar
C. Float and tape
D. Differential pressure transmitter
E. Ultrasonic - Answer-D
The purpose of performing an "As Found" calibration on a
pressure transmitter is to:
A) Eliminate hysteresis and deadband from the instrument
B) Spend more time calibrating the instrument
C) Establish a baseline for comparison, to detect
calibration drift
D) "Exercise" the instrument to keep it in better condition
over time
E) Diagnose control problems in the loop - Answer-C
Calculate the LRV and URV for this DP-based liquid level
measurement system:
A) LRV = 444 "H2 O ; URV = 0 "H2 O
B) LRV = 0 "H2 O ; URV = 360 "H2 O
C) LRV = 0 "H2 O ; URV = 444 "H2 O
D) LRV = 84 "H2 O ; URV = 444 "H2 O
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E) LRV = 7 "H2 O ; URV = 37 "H2 O - Answer-D
Which of the following level-measurement technologies
cannot be adapted to measure solid (powder) level in a
vessel?
A) Float and tape
B) Ultrasonic
C) Load cell
D) Displacer
E) Radar - Answer-D
The most linear temperature sensing element listed here
is a/an:
A. RTD
B. Thermistor
C. Bellows
D. Diode
E. Thermocouple - Answer-A
A type K thermocouple is made from which of the following
metals?
a. Chromel and Alumel
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b. Platinum and Platinum/Rhodium alloy
c. Aluminum and Tungsten
d. Copper and Constantan - Answer-A
If we alter the level measurement system to have a wet
leg instead of a dry leg , what single aspect of the
transmitter's calibration will we need to change?
A. We will need to change the transmitter's URV
B. We will need to change the transmitter's span
C. We will need to change the transmitter's zero
D. We will need to change the transmitter's LRV
E. We will need to change the transmitter's linearity -
Answer-C
Flow-straightening vanes are used upstream of orifice
plate flow elements when:
A. Accuracy is not a concern
B. The process fluid is a gas
C. The flow profile is laminar
D. Insufficient straight-pipe length exists E. The process
fluid is a liquid - Answer-D
Certificate of Qualification Instrumentation and
Control Technician (447A) Exam||VERIFIED EXAM!!!||
Questions with Correct Answers and explanations
LATEST THIS YEAR -JUST RELEASED.pdf|| NEWEST
EXAM!!!
Identify the condition that could cause pressure gauge A to
register a greater pressure than pressure gauge B in this
liquid process:
A) A high rate of flow from left to right (top to bottom
through the vessel)
B) An extremely dense liquid
C) Liquid boiling inside the vessel
D) A high rate of flow from right to left (bottom to top
through the vessel)
E) Pressure gauge B calibrated for absolute pressure units
instead of gauge units - Answer-A
Suppose a storage vessel holds a liquid of unpredictable
density. Identify which level measurement technology will
not maintain accurate measurement of liquid height in the
vessel as the liquid density changes:
A. Sightglass
,2|Page
B. Guided-wave radar
C. Float and tape
D. Differential pressure transmitter
E. Ultrasonic - Answer-D
The purpose of performing an "As Found" calibration on a
pressure transmitter is to:
A) Eliminate hysteresis and deadband from the instrument
B) Spend more time calibrating the instrument
C) Establish a baseline for comparison, to detect
calibration drift
D) "Exercise" the instrument to keep it in better condition
over time
E) Diagnose control problems in the loop - Answer-C
Calculate the LRV and URV for this DP-based liquid level
measurement system:
A) LRV = 444 "H2 O ; URV = 0 "H2 O
B) LRV = 0 "H2 O ; URV = 360 "H2 O
C) LRV = 0 "H2 O ; URV = 444 "H2 O
D) LRV = 84 "H2 O ; URV = 444 "H2 O
,3|Page
E) LRV = 7 "H2 O ; URV = 37 "H2 O - Answer-D
Which of the following level-measurement technologies
cannot be adapted to measure solid (powder) level in a
vessel?
A) Float and tape
B) Ultrasonic
C) Load cell
D) Displacer
E) Radar - Answer-D
The most linear temperature sensing element listed here
is a/an:
A. RTD
B. Thermistor
C. Bellows
D. Diode
E. Thermocouple - Answer-A
A type K thermocouple is made from which of the following
metals?
a. Chromel and Alumel
, 4|Page
b. Platinum and Platinum/Rhodium alloy
c. Aluminum and Tungsten
d. Copper and Constantan - Answer-A
If we alter the level measurement system to have a wet
leg instead of a dry leg , what single aspect of the
transmitter's calibration will we need to change?
A. We will need to change the transmitter's URV
B. We will need to change the transmitter's span
C. We will need to change the transmitter's zero
D. We will need to change the transmitter's LRV
E. We will need to change the transmitter's linearity -
Answer-C
Flow-straightening vanes are used upstream of orifice
plate flow elements when:
A. Accuracy is not a concern
B. The process fluid is a gas
C. The flow profile is laminar
D. Insufficient straight-pipe length exists E. The process
fluid is a liquid - Answer-D
