INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
----- causes the tube of a c type bourdon tube to attempt to straighten - ANSWER-pressure
----- is the most common wet measuring unit in the metric system - ANSWER-liter
------ conversion involves changing from one unit of measurement to another, aith regards to the same
physical quality - ANSWER-unit
110 *c is equla to---? - ANSWER-230*F
a ---- provides maximum accuracy when detecting flow in fluids that contain larger amounnts of
suspended solids such as slurries - ANSWER-venturi tube
a ----- is used to measure pressure - ANSWER-bellows
a binary code that uses represents alphanumeric characters if the ---- code - ANSWER-ASCII
a bourdon tube must be fabricated from amaterial that has elastic properties so that it ----- - ANSWER-
can deform under preassure
a controller that has the functions of proportinal, reset and derivative is often referreed to as a----
controller - ANSWER-pid
a DCS is superior to a hardware alarm system because it can----- - ANSWER-provide levels of alarm
severity
a detector or sensor is considered good if it is designed to minimize ------ - ANSWER-disturbance
a device that converts a 4-20 ma signal into a pneumatic signal is called a ------- - ANSWER-i/p transducer
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
,INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
a device that converts one form of input signal to another form of output signal is caled a ------ -
ANSWER-transducer
a disadvantage associated with solid state relays is______ - ANSWER-current leakage
a double pole, single throw switch with four brass color screw termianls for wire connections is normally
used to control ------ circuits of equipment - ANSWER-240v
a fail closed valve is closed by a ----- - ANSWER-spring
a file test can be used to determine the --- of steel - ANSWER-carbon content
a globe valve that closes against the direction fluid flow is said to be---- - ANSWER-flow to open
a hexadecimal system is base - ANSWER-16
a knife gate valve is likely to be used in which of the following applications - ANSWER-slurry or waste
a major disadvantage of direct operarted regulators is---- - ANSWER-poor sensitivity
a major function of the software server is to ----- - ANSWER-store database error files to CD-ROMS
a motion detector switch typically uses a ------ sensor to detect motion - ANSWER-infrared
a multiview projection is also known as a ------ drawing - ANSWER-orthographic
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
, INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
a needle valve may be used when an application requires - ANSWER-fine adjustment flow
a pneumatic force balance differential pressure transmitter is also referred to asa ---- - ANSWER-dp cell
a pressure gauge mounted at the bottom of an open tank of water indicates 17 psig. the level of water
in the tank is ------ - ANSWER-472.222
a recommended way to remove foreign particles from an edge filtration filter element is to------ -
ANSWER-reverse the flow through the element
a special i/o module that sends out a train of pulses to a motor is a ---- module - ANSWER-stepper
control
a temperature reading of 125*C equals -----F - ANSWER-257
a thermocouple uses ------ measurement - ANSWER-inferred
a typical pneaumatic positioner has ---- pressure gauges - ANSWER-three
a valve positioner compares the stem position of the valve actuator to the ------- - ANSWER-signal from
the controller
a valve that automatically opens whenever the controlling medium is lost is referred to as a ----- -
ANSWER-Fail Open
a variable orifice that is used to regulate the flow of process fluid according to the requirement of the
process is known as a ------- - ANSWER-control valve
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
CORRECT ANSWERS 2025
----- causes the tube of a c type bourdon tube to attempt to straighten - ANSWER-pressure
----- is the most common wet measuring unit in the metric system - ANSWER-liter
------ conversion involves changing from one unit of measurement to another, aith regards to the same
physical quality - ANSWER-unit
110 *c is equla to---? - ANSWER-230*F
a ---- provides maximum accuracy when detecting flow in fluids that contain larger amounnts of
suspended solids such as slurries - ANSWER-venturi tube
a ----- is used to measure pressure - ANSWER-bellows
a binary code that uses represents alphanumeric characters if the ---- code - ANSWER-ASCII
a bourdon tube must be fabricated from amaterial that has elastic properties so that it ----- - ANSWER-
can deform under preassure
a controller that has the functions of proportinal, reset and derivative is often referreed to as a----
controller - ANSWER-pid
a DCS is superior to a hardware alarm system because it can----- - ANSWER-provide levels of alarm
severity
a detector or sensor is considered good if it is designed to minimize ------ - ANSWER-disturbance
a device that converts a 4-20 ma signal into a pneumatic signal is called a ------- - ANSWER-i/p transducer
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
,INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
a device that converts one form of input signal to another form of output signal is caled a ------ -
ANSWER-transducer
a disadvantage associated with solid state relays is______ - ANSWER-current leakage
a double pole, single throw switch with four brass color screw termianls for wire connections is normally
used to control ------ circuits of equipment - ANSWER-240v
a fail closed valve is closed by a ----- - ANSWER-spring
a file test can be used to determine the --- of steel - ANSWER-carbon content
a globe valve that closes against the direction fluid flow is said to be---- - ANSWER-flow to open
a hexadecimal system is base - ANSWER-16
a knife gate valve is likely to be used in which of the following applications - ANSWER-slurry or waste
a major disadvantage of direct operarted regulators is---- - ANSWER-poor sensitivity
a major function of the software server is to ----- - ANSWER-store database error files to CD-ROMS
a motion detector switch typically uses a ------ sensor to detect motion - ANSWER-infrared
a multiview projection is also known as a ------ drawing - ANSWER-orthographic
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
, INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
a needle valve may be used when an application requires - ANSWER-fine adjustment flow
a pneumatic force balance differential pressure transmitter is also referred to asa ---- - ANSWER-dp cell
a pressure gauge mounted at the bottom of an open tank of water indicates 17 psig. the level of water
in the tank is ------ - ANSWER-472.222
a recommended way to remove foreign particles from an edge filtration filter element is to------ -
ANSWER-reverse the flow through the element
a special i/o module that sends out a train of pulses to a motor is a ---- module - ANSWER-stepper
control
a temperature reading of 125*C equals -----F - ANSWER-257
a thermocouple uses ------ measurement - ANSWER-inferred
a typical pneaumatic positioner has ---- pressure gauges - ANSWER-three
a valve positioner compares the stem position of the valve actuator to the ------- - ANSWER-signal from
the controller
a valve that automatically opens whenever the controlling medium is lost is referred to as a ----- -
ANSWER-Fail Open
a variable orifice that is used to regulate the flow of process fluid according to the requirement of the
process is known as a ------- - ANSWER-control valve
INSTRUMENTATION NCCER QUESTIONS WITH
CORRECT ANSWERS 2025
