INSTRUMENTATION NCCER Question and Answer (2026/2027) | Complete Revision Guide | A+ Verified

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