INSTRUMENTATION NCCER EXAM
QUESTIONS WITH COMPLETE
ANSWERS
1) The three fundamental units of all physical quantities are length, mass, and
_________?
a) Pressure
b) Temperature
c) Matter
d) Time - Answer-d) Time
2) The meter-kilogram-second (MKS) system and the centimeter-gram-second (CGS)
are part of the English system of measure?
a) True
b)False - Answer-b) False
3) How many inches are in one meter?
a) 1.52
b) 12
c) 39.37
d) 40 - Answer-c) 39.37
4) When converting the dimensions of a ________, only the radius has a measured
dimension that must be converted?
a) Circle
b) Rectangle
c) Cylinder
d) Box - Answer-a) Circle
5) How many meters are in 9.843 feet?
a) 1
b) 2
c) 3
d) 4 - Answer-c) 3
6) What is the most common wet measuring unit in the metric system?
a) Quart
b) Liter
c) Pint
,d) Gallon - Answer-b) Liter
7) The amount of matter in an object is its _________?
a) Weight
b) Force
c) Mass
d) Pressure - Answer-c) Mass
8) The newton can be defined as the amount of force required to accelerate one
kilogram at the rate of one meter per second per second?
a) True
b) False - Answer-a) True
9) Hydrostatic pressure is also referred to as _______ pressure?
a) Base
b) Interior
c) Vessel
d) Head - Answer-d) Head
10) The Kelvin scale is sometimes referred to as the _________ scale?
a) Absolute Celcius
b) Rankine
c) Fahrenheit
d) Degrees Centigrade - Answer-a) Absolute Celsius
11) 110C is equal to __________?
a) 110 F
b) 210 F
c) 230 F
d) 250 F - Answer-c) 230 F
12) 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 - Answer-a) True
13) Mass flow rates can be calculated or computed easily by determining or sensing
temperature and / or _______.
a) Velocity
, b) Pressure
c) Volume
d) Density - Answer-b) Pressure
14) What is the square root of 144?
a) 12
b) 13
c) 14
d) 15 - Answer-a) 12
15) __________ 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 - Answer-c) Unit
16) 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 - Answer-a) True
17) 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
c) 17.8
d) 178 - Answer-b) 1.78
18) Resistance temperature detectors (RTDs) are commonly made of platinum, nickel,
or _________.
a) Steel
b) Aluminum
c) Silver
d) Copper - Answer-d) Copper
19) The most life-threatening hazards on a construction site include all of the following
except _____________?
a) falls
b) electrocution
QUESTIONS WITH COMPLETE
ANSWERS
1) The three fundamental units of all physical quantities are length, mass, and
_________?
a) Pressure
b) Temperature
c) Matter
d) Time - Answer-d) Time
2) The meter-kilogram-second (MKS) system and the centimeter-gram-second (CGS)
are part of the English system of measure?
a) True
b)False - Answer-b) False
3) How many inches are in one meter?
a) 1.52
b) 12
c) 39.37
d) 40 - Answer-c) 39.37
4) When converting the dimensions of a ________, only the radius has a measured
dimension that must be converted?
a) Circle
b) Rectangle
c) Cylinder
d) Box - Answer-a) Circle
5) How many meters are in 9.843 feet?
a) 1
b) 2
c) 3
d) 4 - Answer-c) 3
6) What is the most common wet measuring unit in the metric system?
a) Quart
b) Liter
c) Pint
,d) Gallon - Answer-b) Liter
7) The amount of matter in an object is its _________?
a) Weight
b) Force
c) Mass
d) Pressure - Answer-c) Mass
8) The newton can be defined as the amount of force required to accelerate one
kilogram at the rate of one meter per second per second?
a) True
b) False - Answer-a) True
9) Hydrostatic pressure is also referred to as _______ pressure?
a) Base
b) Interior
c) Vessel
d) Head - Answer-d) Head
10) The Kelvin scale is sometimes referred to as the _________ scale?
a) Absolute Celcius
b) Rankine
c) Fahrenheit
d) Degrees Centigrade - Answer-a) Absolute Celsius
11) 110C is equal to __________?
a) 110 F
b) 210 F
c) 230 F
d) 250 F - Answer-c) 230 F
12) 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 - Answer-a) True
13) Mass flow rates can be calculated or computed easily by determining or sensing
temperature and / or _______.
a) Velocity
, b) Pressure
c) Volume
d) Density - Answer-b) Pressure
14) What is the square root of 144?
a) 12
b) 13
c) 14
d) 15 - Answer-a) 12
15) __________ 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 - Answer-c) Unit
16) 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 - Answer-a) True
17) 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
c) 17.8
d) 178 - Answer-b) 1.78
18) Resistance temperature detectors (RTDs) are commonly made of platinum, nickel,
or _________.
a) Steel
b) Aluminum
c) Silver
d) Copper - Answer-d) Copper
19) The most life-threatening hazards on a construction site include all of the following
except _____________?
a) falls
b) electrocution
