Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
INSTRUMENTATION NCCER EXAM NEWEST ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
when looking at an illustration of a valve plug and seat installation if the
taper of the plug goes from wide to narrow from top to bottom the plug
must travel ------ - Correct Answer-down to close up to open
a valve that automatically opens whenever the controlling medium is
lost is referred to as a ----- - Correct Answer-Fail Open
a fail closed valve is closed by a ----- - Correct Answer-spring
if a fail as positioned valve is 50% open and pneumatic pressure is lost
to the valve, the valve will---- - Correct Answer-remain 50%open
an air to open valve is the same thing as a----- valve - Correct Answer-
spring to close
an air to close valve is the same thingas a ------valve - Correct Answer-
spring to open
1|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
a valve positioner compares the stem position of the valve actuator to
the ------- - Correct Answer-signal from the controller
on a direct acting positioner, if the output from the controller
decreases, the positioners outut will------ - Correct Answer-decrease
a typical pneaumatic positioner has ---- pressure gauges - Correct
Answer-three
a device that converts a 4-20 ma signal into a pneumatic signal is called
a ------- - Correct Answer-i/p transducer
which of the following positioners may interfeace with a PAM program ?
- Correct Answer-intelligent
pneumatic or electric power supplies should not be isolated or
disconnected from operating positions unless the technichian
understands the ---- beforehand - Correct Answer-failure modes
when choosing among valves, the ------valve exhibits the largest
pressure drop - Correct Answer-globe
2|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
if a gate valve has a flow arrow indicated on it, it is because the gate
valve has a ------- - Correct Answer-double gate
fittings that are marked LH on the outside wall indicate------ - Correct
Answer-lefthand threads
regardless of the level of power being congtrolled by a relay, the
activation of the relay is accomplished by a ---- power level signal -
Correct Answer-lower
relays that are a combination of electromechanical and solid state
technology are known as ------ - Correct Answer-hybrid relays
reed relays are used in applications requiring all of the following
characteristics except? - Correct Answer-high current
relays that are often referred to as throwaway relays are _____ relays -
Correct Answer-general purpose plug in
the primary difference between a reed switch and a reed relay is _____
- Correct Answer-reed relays contain their own coil and reed switches
depend on an external magnetic field to operate
3|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
latching types of general purpose relays typically have ______ coils -
Correct Answer-two
electrometrical control relays are used in all of the following functions
except _____ - Correct Answer-high speed power switching
a disadvantage associated with solid state relays is______ - Correct
Answer-current leakage
in a solid state relay, an LED converts electrical energy into _______ -
Correct Answer-light energy
the force balance principle is most commonly used in pneumatic
______ - Correct Answer-transmitters
using pneumatic inputsignals as operands, computing relays perform
______ functions - Correct Answer-mathematical
the concept of measuring, comparing, computing, and correcting is
implemented by the -------- - Correct Answer-Control System
the operation or operations used in the treatment of materials
compromise the ------ - Correct Answer-process
4|Page
INSTRUMENTATION NCCER EXAM NEWEST ACTUAL EXAM
COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
when looking at an illustration of a valve plug and seat installation if the
taper of the plug goes from wide to narrow from top to bottom the plug
must travel ------ - Correct Answer-down to close up to open
a valve that automatically opens whenever the controlling medium is
lost is referred to as a ----- - Correct Answer-Fail Open
a fail closed valve is closed by a ----- - Correct Answer-spring
if a fail as positioned valve is 50% open and pneumatic pressure is lost
to the valve, the valve will---- - Correct Answer-remain 50%open
an air to open valve is the same thing as a----- valve - Correct Answer-
spring to close
an air to close valve is the same thingas a ------valve - Correct Answer-
spring to open
1|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
a valve positioner compares the stem position of the valve actuator to
the ------- - Correct Answer-signal from the controller
on a direct acting positioner, if the output from the controller
decreases, the positioners outut will------ - Correct Answer-decrease
a typical pneaumatic positioner has ---- pressure gauges - Correct
Answer-three
a device that converts a 4-20 ma signal into a pneumatic signal is called
a ------- - Correct Answer-i/p transducer
which of the following positioners may interfeace with a PAM program ?
- Correct Answer-intelligent
pneumatic or electric power supplies should not be isolated or
disconnected from operating positions unless the technichian
understands the ---- beforehand - Correct Answer-failure modes
when choosing among valves, the ------valve exhibits the largest
pressure drop - Correct Answer-globe
2|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
if a gate valve has a flow arrow indicated on it, it is because the gate
valve has a ------- - Correct Answer-double gate
fittings that are marked LH on the outside wall indicate------ - Correct
Answer-lefthand threads
regardless of the level of power being congtrolled by a relay, the
activation of the relay is accomplished by a ---- power level signal -
Correct Answer-lower
relays that are a combination of electromechanical and solid state
technology are known as ------ - Correct Answer-hybrid relays
reed relays are used in applications requiring all of the following
characteristics except? - Correct Answer-high current
relays that are often referred to as throwaway relays are _____ relays -
Correct Answer-general purpose plug in
the primary difference between a reed switch and a reed relay is _____
- Correct Answer-reed relays contain their own coil and reed switches
depend on an external magnetic field to operate
3|Page
, Instrumentation NCCER EXAM NEWEST ACTUAL EXAM
latching types of general purpose relays typically have ______ coils -
Correct Answer-two
electrometrical control relays are used in all of the following functions
except _____ - Correct Answer-high speed power switching
a disadvantage associated with solid state relays is______ - Correct
Answer-current leakage
in a solid state relay, an LED converts electrical energy into _______ -
Correct Answer-light energy
the force balance principle is most commonly used in pneumatic
______ - Correct Answer-transmitters
using pneumatic inputsignals as operands, computing relays perform
______ functions - Correct Answer-mathematical
the concept of measuring, comparing, computing, and correcting is
implemented by the -------- - Correct Answer-Control System
the operation or operations used in the treatment of materials
compromise the ------ - Correct Answer-process
4|Page
