QUESTIONS WITH VERIFIED CORRECT
ANSWERS
◉ the operation or operations used in the treatment of materials
compromise the ------ Answer: process
◉ the process parameters are subject to if the energy balance is ------
Answer: upset
◉ the process parameters that is selected for control is the ----
variable Answer: control
◉ the control variable is ultimately controlled by the ---- loop
Answer: controller
◉ which parameter supplies energy or material to the process to
regulate the deviation of a process output? Answer: manipulated
variable
,◉ whcih of the following measuring detectors applies a coverging
cone shaped inlet section? Answer: venturi tube
◉ a detector or sensor is considered good if it is designed to
minimize ------ Answer: disturbance
◉ if a tanks level is measured by a dipstick, this is considered-------
Answer: direct
◉ a thermocouple uses ------ measurement Answer: inferred
◉ if the output from one device is not compatible with the input it
supplies to another device, a ----- must be applied Answer:
transducer
◉ of the following, -------transducers may convert a 0-5 volt to a 4-20
mA signal Answer: e/i
◉ the function a feedback transmission circuit in a contoller is to ----
- Answer: 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 -------
Answer: 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 -------
Answer: actuator
◉ the selection and interconnection of devices in an instrumenatiion
channel that ultimately determine the stability of the process are
reffered to as the ----- Answer: control loop
◉ another name for an open loop is a ----- loop Answer: feed
forward
◉ another name for a feedback loop is a---- loop Answer: closed
◉ the primary performance for a any closed loop system is -------
Answer: stability
◉ another name for a two postion control mode is ------ control
Answer: on-off