INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
_______ conversion involves changing from one unit of measurement to another, always with regards
to the same physical quantity
Polarity
Temperature
Unit
Volume - ANSWER-Unit
___________ are included on most instrument drawings to provide special information or
directions about the process or instruments in the drawings.
a) Symbols
b) Addendum sheets
c) Notes and details
d) Designer contact numbers - ANSWER-Notes and details
___________ O-rings are used with most petroleum and silicone fluids, hydraulic and
nonaromatic fuels, and solvents.
a) Buna-N
b) Silicone
c) Ethylene propylene
d) Neoprene - ANSWER-Buna-N
____________ lines represent the piping that carries working process fluids.
a) Capillary tube
b) Pneumatic binary
c) Process piping
d) Signal - ANSWER-Process piping
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
,INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
____________ signal line symbols have groups of three slashes across the main line.
a) Process
b) Pneumatics
c) Electric
d) Hydraulic - ANSWER-Electric
110°C is equal to _____?
110
210
230
250 - ANSWER-230
82)
The ____________ uses a float in a tapered tube to indicate flow.
a) venturi tube
b) rotameter
c) DP meter
d) orifice plate - ANSWER-rotameter
A _______ letter may have one meaning as a first letter in another meaning as a second letter
user's choice
Unclassified
Safety
succeeding - ANSWER-Users choice
A drawing that illustrates the interconnection of devices from the primary element in the field,
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
, INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
to the board-mounted instruments on the control panel, to the final control devices is called
a(n) ____________.
a) instrument index
b) location drawing
c) detail drawing
d) loop drawing - ANSWER-Loop drawing
A file test can be used to determine the _______ of steel
Zinc content
Carbon Content
tensile strength
Toughness - ANSWER-Carbon Content
A fluid flowing in a pipe eight search pressure in two different directions against both the walls of the
pipe in the direction of the flow
True
False - ANSWER-True
A pressure gauge mounted at the bottom of an open tank of water indicates 17 psig. The level
of water in the tank is ____________.
a) 472.222 inches
b) 0.612 inches
c) 356.120 inches
d) 74.210 inches - ANSWER-472.222 inches
A primary flow element symbol that looks like a square box with an inverted L and it is used to represent
a
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
CORRECT ANSWERS 2025
_______ conversion involves changing from one unit of measurement to another, always with regards
to the same physical quantity
Polarity
Temperature
Unit
Volume - ANSWER-Unit
___________ are included on most instrument drawings to provide special information or
directions about the process or instruments in the drawings.
a) Symbols
b) Addendum sheets
c) Notes and details
d) Designer contact numbers - ANSWER-Notes and details
___________ O-rings are used with most petroleum and silicone fluids, hydraulic and
nonaromatic fuels, and solvents.
a) Buna-N
b) Silicone
c) Ethylene propylene
d) Neoprene - ANSWER-Buna-N
____________ lines represent the piping that carries working process fluids.
a) Capillary tube
b) Pneumatic binary
c) Process piping
d) Signal - ANSWER-Process piping
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
,INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
____________ signal line symbols have groups of three slashes across the main line.
a) Process
b) Pneumatics
c) Electric
d) Hydraulic - ANSWER-Electric
110°C is equal to _____?
110
210
230
250 - ANSWER-230
82)
The ____________ uses a float in a tapered tube to indicate flow.
a) venturi tube
b) rotameter
c) DP meter
d) orifice plate - ANSWER-rotameter
A _______ letter may have one meaning as a first letter in another meaning as a second letter
user's choice
Unclassified
Safety
succeeding - ANSWER-Users choice
A drawing that illustrates the interconnection of devices from the primary element in the field,
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
, INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
to the board-mounted instruments on the control panel, to the final control devices is called
a(n) ____________.
a) instrument index
b) location drawing
c) detail drawing
d) loop drawing - ANSWER-Loop drawing
A file test can be used to determine the _______ of steel
Zinc content
Carbon Content
tensile strength
Toughness - ANSWER-Carbon Content
A fluid flowing in a pipe eight search pressure in two different directions against both the walls of the
pipe in the direction of the flow
True
False - ANSWER-True
A pressure gauge mounted at the bottom of an open tank of water indicates 17 psig. The level
of water in the tank is ____________.
a) 472.222 inches
b) 0.612 inches
c) 356.120 inches
d) 74.210 inches - ANSWER-472.222 inches
A primary flow element symbol that looks like a square box with an inverted L and it is used to represent
a
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
