Page 1 of 244
CCST/NCCER INSTRUMENTATION EXAM NEWEST
WITH ALL 600+ QUESTIONS AND WELL
ELABORATED ANSWERS LATEST UPDATE THIS YEAR
Question: Which of the following will have the highest pressure difference between the surface
and 6 inches below the surface?
A. a 12in. vertical straw filled with water
B. a 10ft. diameter open tank filled with water
C. a 5ft. diameter vertical pipe filled with water
D. None of the above, because the pressure difference is the same - CORRECT ANSWER✔✔D.
None of the above, because the pressure difference is the same
Question: Hydrostatic head is another way of expressing:
A. Gallons
B. Pressure
C. Length
D. Mass - CORRECT ANSWER✔✔B. Pressure
Question: Dividing the density of the process fluid by the density of ____ gives a dimensionless
number called specific gravity.
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A. mercury or mercury vapors
B. oil or natural gas
C. water or air
D. any known liquid or gas - CORRECT ANSWER✔✔C. water or air
Question: As the speed (velocity) of a fluid increases through a restriction, the fluid pressure
downstream
A. increases
B. decreases
C. remains unchanged
D. first increases then decreases - CORRECT ANSWER✔✔B. decreases
Question: What Celcius temperature reading is within an oven temperature of 215 to 220° F
A. 103
B. 110
C. 329
D. 338 - CORRECT ANSWER✔✔A 103
Question: The difference between the indication of the instrument and the actual value of the
measured variable is:
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A. the controlled variable
B. called set point
C. an error in the measuring instrument
D. discarded - CORRECT ANSWER✔✔C. an error in the measuring instrument
Question: Hydrostatic head, weight, radioactive properties, density, and sonic detectors are all
used in which methods of level measurement?
A. point
B. pressure
C. inferential
D. direct - CORRECT ANSWER✔✔C. inferential
Question: Differential pressure transmitters measure level by inference from:
A. Capacitance
B. Conductivity
C. Hydrostatic head
D. Thermal energy - CORRECT ANSWER✔✔C. Hydrostatic head
Question: Thermal elements infer level by measuring:
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A. Temperature
B. Capacitance
C. Thermal conductivity
D. Displacement - CORRECT ANSWER✔✔A. Temperature
Question: All of the following types of level instruments can be used to detect the location of
liquid surfaces except:
A. radar
B. float
C. hydrostatic head
D. ultrasonic - CORRECT ANSWER✔✔C. hydrostatic head
Question: The temperature range of a transmitter is 100-200°F. The output signal range is 3-15
psig. What would be the expected output signal for an input temperature of 150°F?
A. 6 psig
B. 9 psig
C. 11.25 psig
D. 12 psig - CORRECT ANSWER✔✔B. 9 psig
Question: Seventy-five percent output on a 4-20 milliamp transmitter is:
CCST/NCCER INSTRUMENTATION EXAM NEWEST
WITH ALL 600+ QUESTIONS AND WELL
ELABORATED ANSWERS LATEST UPDATE THIS YEAR
Question: Which of the following will have the highest pressure difference between the surface
and 6 inches below the surface?
A. a 12in. vertical straw filled with water
B. a 10ft. diameter open tank filled with water
C. a 5ft. diameter vertical pipe filled with water
D. None of the above, because the pressure difference is the same - CORRECT ANSWER✔✔D.
None of the above, because the pressure difference is the same
Question: Hydrostatic head is another way of expressing:
A. Gallons
B. Pressure
C. Length
D. Mass - CORRECT ANSWER✔✔B. Pressure
Question: Dividing the density of the process fluid by the density of ____ gives a dimensionless
number called specific gravity.
, Page 2 of 244
A. mercury or mercury vapors
B. oil or natural gas
C. water or air
D. any known liquid or gas - CORRECT ANSWER✔✔C. water or air
Question: As the speed (velocity) of a fluid increases through a restriction, the fluid pressure
downstream
A. increases
B. decreases
C. remains unchanged
D. first increases then decreases - CORRECT ANSWER✔✔B. decreases
Question: What Celcius temperature reading is within an oven temperature of 215 to 220° F
A. 103
B. 110
C. 329
D. 338 - CORRECT ANSWER✔✔A 103
Question: The difference between the indication of the instrument and the actual value of the
measured variable is:
, Page 3 of 244
A. the controlled variable
B. called set point
C. an error in the measuring instrument
D. discarded - CORRECT ANSWER✔✔C. an error in the measuring instrument
Question: Hydrostatic head, weight, radioactive properties, density, and sonic detectors are all
used in which methods of level measurement?
A. point
B. pressure
C. inferential
D. direct - CORRECT ANSWER✔✔C. inferential
Question: Differential pressure transmitters measure level by inference from:
A. Capacitance
B. Conductivity
C. Hydrostatic head
D. Thermal energy - CORRECT ANSWER✔✔C. Hydrostatic head
Question: Thermal elements infer level by measuring:
, Page 4 of 244
A. Temperature
B. Capacitance
C. Thermal conductivity
D. Displacement - CORRECT ANSWER✔✔A. Temperature
Question: All of the following types of level instruments can be used to detect the location of
liquid surfaces except:
A. radar
B. float
C. hydrostatic head
D. ultrasonic - CORRECT ANSWER✔✔C. hydrostatic head
Question: The temperature range of a transmitter is 100-200°F. The output signal range is 3-15
psig. What would be the expected output signal for an input temperature of 150°F?
A. 6 psig
B. 9 psig
C. 11.25 psig
D. 12 psig - CORRECT ANSWER✔✔B. 9 psig
Question: Seventy-five percent output on a 4-20 milliamp transmitter is:
