INSTRUMENTATION NCCER Question and Answer
(2026/2027) | Complete Revision Guide | A+
Verified
• the operation or operations used in the treatment of materials compromise the ------ -
✓✓ process
• the process parameters are subject to if the energy balance is ------ -✓✓ upset
• the process parameters that is selected for control is the ---- variable -✓✓ control
• the control variable is ultimately controlled by the ---- loop -✓✓ controller
• which parameter supplies energy or material to the process to regulate the deviation of
a process output? -✓✓ manipulated variable
• whcih of the following measuring detectors applies a coverging cone shaped inlet
section? -✓✓ venturi tube
• a detector or sensor is considered good if it is designed to minimize ------ -✓✓
disturbance
• if a tanks level is measured by a dipstick, this is considered------- -✓✓ direct
• a thermocouple uses ------ measurement -✓✓ inferred
• if the output from one device is not compatible with the input it supplies to another
device, a ----- must be applied -✓✓ transducer
• of the following, -------transducers may convert a 0-5 volt to a 4-20 mA signal -✓✓ e/i
• the function a feedback transmission circuit in a contoller is to ----- -✓✓ convert the
sensor signal into a useable controller signal
• a variable orifice that is used to regulate the flow of process fluid according to the
requirement of the process is known as a ------- -✓✓ control valve
• the componet attached to a control valve that compares the stem motion of the valve
to the signal of the controller is the ------- -✓✓ actuator
, • the selection and interconnection of devices in an instrumenatiion channel that
ultimately determine the stability of the process are reffered to as the ----- -✓✓ control
loop
• another name for an open loop is a ----- loop -✓✓ feed forward
• another name for a feedback loop is a---- loop -✓✓ closed
• the primary performance for a any closed loop system is ------- -✓✓ stability
• another name for a two postion control mode is ------ control -✓✓ on-off
• in what type of control mode is the final control element throttled to various positions
that are dependent on process systems conditions? -✓✓ proportional
• in what type of control mode is the output rate of change dependent on the magnitude
of the input? -✓✓ integral
• the basic function of a process control system is to ---- -✓✓ maintain a balanced
energy or material input to output ratio relationship
• you would most liekly find an RTD ina ---- process control loop -✓✓ Temperature
• the function of an FY is ----- -✓✓ to convert a differential pressure signal to a linear
flow signal
• an advantage of using an electrostatic precipitator is its ---- -✓✓ low electrical cost
• one micron is equivalent to approximately ---- inches -✓✓ .0000393
• a recommended way to remove foreign particles from an edge filtration filter element is
to------ -✓✓ reverse the flow through the element
• adevice designed to maintain/regulate a constant pressure or flow in the output of a
system is a -✓✓ regulator
• the most frequent application of a electronic to pneumatic converter is to convert the
signals necessary to ------ -✓✓ operate pneumatic valves or regulators
• another name for direct operated pneumatic regulators is ----- regulators -✓✓ Self-
operated
• regardless of the type of loading used in regulators, the pressure entering the regulator
acts agaisnt the ----- -✓✓ loading force
(2026/2027) | Complete Revision Guide | A+
Verified
• the operation or operations used in the treatment of materials compromise the ------ -
✓✓ process
• the process parameters are subject to if the energy balance is ------ -✓✓ upset
• the process parameters that is selected for control is the ---- variable -✓✓ control
• the control variable is ultimately controlled by the ---- loop -✓✓ controller
• which parameter supplies energy or material to the process to regulate the deviation of
a process output? -✓✓ manipulated variable
• whcih of the following measuring detectors applies a coverging cone shaped inlet
section? -✓✓ venturi tube
• a detector or sensor is considered good if it is designed to minimize ------ -✓✓
disturbance
• if a tanks level is measured by a dipstick, this is considered------- -✓✓ direct
• a thermocouple uses ------ measurement -✓✓ inferred
• if the output from one device is not compatible with the input it supplies to another
device, a ----- must be applied -✓✓ transducer
• of the following, -------transducers may convert a 0-5 volt to a 4-20 mA signal -✓✓ e/i
• the function a feedback transmission circuit in a contoller is to ----- -✓✓ convert the
sensor signal into a useable controller signal
• a variable orifice that is used to regulate the flow of process fluid according to the
requirement of the process is known as a ------- -✓✓ control valve
• the componet attached to a control valve that compares the stem motion of the valve
to the signal of the controller is the ------- -✓✓ actuator
, • the selection and interconnection of devices in an instrumenatiion channel that
ultimately determine the stability of the process are reffered to as the ----- -✓✓ control
loop
• another name for an open loop is a ----- loop -✓✓ feed forward
• another name for a feedback loop is a---- loop -✓✓ closed
• the primary performance for a any closed loop system is ------- -✓✓ stability
• another name for a two postion control mode is ------ control -✓✓ on-off
• in what type of control mode is the final control element throttled to various positions
that are dependent on process systems conditions? -✓✓ proportional
• in what type of control mode is the output rate of change dependent on the magnitude
of the input? -✓✓ integral
• the basic function of a process control system is to ---- -✓✓ maintain a balanced
energy or material input to output ratio relationship
• you would most liekly find an RTD ina ---- process control loop -✓✓ Temperature
• the function of an FY is ----- -✓✓ to convert a differential pressure signal to a linear
flow signal
• an advantage of using an electrostatic precipitator is its ---- -✓✓ low electrical cost
• one micron is equivalent to approximately ---- inches -✓✓ .0000393
• a recommended way to remove foreign particles from an edge filtration filter element is
to------ -✓✓ reverse the flow through the element
• adevice designed to maintain/regulate a constant pressure or flow in the output of a
system is a -✓✓ regulator
• the most frequent application of a electronic to pneumatic converter is to convert the
signals necessary to ------ -✓✓ operate pneumatic valves or regulators
• another name for direct operated pneumatic regulators is ----- regulators -✓✓ Self-
operated
• regardless of the type of loading used in regulators, the pressure entering the regulator
acts agaisnt the ----- -✓✓ loading force
