Page 1 of 161
NCCER INSTRUMENT EXAM (3 VERSIONS) WITH
ALL 500 QUESTIONS AND WELL ELABORATED
ANSWERS LATEST UPDATE THIS YEAR
Question: 1) The Kelvin scale is sometimes referred to as the _________ scale?
a) Absolute Celcius
b) Rankine
c) Fahrenheit
d) Degrees Centigrade - CORRECT ANSWER✔✔a) Absolute Celsius
Question: 2) 110C is equal to __________?
a) 110 F
b) 210 F
c) 230 F
d) 250 F - CORRECT ANSWER✔✔c) 230 F
, Page 2 of 161
Question: 3) A fluid flowing in a pipe exerts pressure in two different directions, against both
the walls of the pipe and the direction of flow.
a) True
b) False - CORRECT ANSWER✔✔a) True
Question: 4) Mass flow rates can be calculated or computed easily by determining or sensing
temperature and / or _______.
a) Velocity
b) Pressure
c) Volume
d) Density - CORRECT ANSWER✔✔b) Pressure
Question: 5) What is the square root of 144?
a) 12
b) 13
c) 14
d) 15 - CORRECT ANSWER✔✔a) 12
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Question: 6) __________ conversion involves changing from one unit of measurement to
another, always with regards to the same physical quantity.
a) Polarity
b) Temperature
c) Unit
d) Volume - CORRECT ANSWER✔✔c) Unit
Question: 7) For a number that does not contain a decimal point, the left-most non-zero digit is
the MSD and the right-most non-zero digit is the LSD.
a) True
b) False - CORRECT ANSWER✔✔a) True
Question: 8) The length of a calibrated scale needs to be converted from inches to meters. The
scale is 70 inches. What is the length of the scale in meters?
a) .178
b) 1.78
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c) 17.8
d) 178 - CORRECT ANSWER✔✔b) 1.78
Question: 8) Resistance temperature detectors (RTDs) are commonly made of platinum, nickel,
or _________.
a) Steel
b) Aluminum
c) Silver
d) Copper - CORRECT ANSWER✔✔d) Copper
Question: 10) The most life-threatening hazards on a construction site include all of the
following except _____________?
a) falls
b) electrocution
c) being crushed or struck by falling or flying objects d) chemical exposure - CORRECT
ANSWER✔✔d) chemical exposure
NCCER INSTRUMENT EXAM (3 VERSIONS) WITH
ALL 500 QUESTIONS AND WELL ELABORATED
ANSWERS LATEST UPDATE THIS YEAR
Question: 1) The Kelvin scale is sometimes referred to as the _________ scale?
a) Absolute Celcius
b) Rankine
c) Fahrenheit
d) Degrees Centigrade - CORRECT ANSWER✔✔a) Absolute Celsius
Question: 2) 110C is equal to __________?
a) 110 F
b) 210 F
c) 230 F
d) 250 F - CORRECT ANSWER✔✔c) 230 F
, Page 2 of 161
Question: 3) A fluid flowing in a pipe exerts pressure in two different directions, against both
the walls of the pipe and the direction of flow.
a) True
b) False - CORRECT ANSWER✔✔a) True
Question: 4) Mass flow rates can be calculated or computed easily by determining or sensing
temperature and / or _______.
a) Velocity
b) Pressure
c) Volume
d) Density - CORRECT ANSWER✔✔b) Pressure
Question: 5) What is the square root of 144?
a) 12
b) 13
c) 14
d) 15 - CORRECT ANSWER✔✔a) 12
, Page 3 of 161
Question: 6) __________ conversion involves changing from one unit of measurement to
another, always with regards to the same physical quantity.
a) Polarity
b) Temperature
c) Unit
d) Volume - CORRECT ANSWER✔✔c) Unit
Question: 7) For a number that does not contain a decimal point, the left-most non-zero digit is
the MSD and the right-most non-zero digit is the LSD.
a) True
b) False - CORRECT ANSWER✔✔a) True
Question: 8) The length of a calibrated scale needs to be converted from inches to meters. The
scale is 70 inches. What is the length of the scale in meters?
a) .178
b) 1.78
, Page 4 of 161
c) 17.8
d) 178 - CORRECT ANSWER✔✔b) 1.78
Question: 8) Resistance temperature detectors (RTDs) are commonly made of platinum, nickel,
or _________.
a) Steel
b) Aluminum
c) Silver
d) Copper - CORRECT ANSWER✔✔d) Copper
Question: 10) The most life-threatening hazards on a construction site include all of the
following except _____________?
a) falls
b) electrocution
c) being crushed or struck by falling or flying objects d) chemical exposure - CORRECT
ANSWER✔✔d) chemical exposure
