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WorksheetsNPA 1150 - Instrumentation (PV's)
Total questions: 42
Worksheet time: 21mins
Defined as the force applied to a unit of area
pressure
temperature
level
flow
The measure of kinetic energy (hotness or coldness) of a substance.
pressure
temperature
level
flow
The quantity of fluid that moves thru a pipe.
pressure
temperature
level
flow
The position of either height of depth along vertical axis
pressure
temperature
level
flow
The first instrument in the loop that measures the process variable and communicate that value to the next instrument.
sensor
indicator
transmitter
controller
Instrument that shows the current conditions of process variable.
sensor
indicator
transmitter
controller
Instrumentation that sends signal represented in a standardized form such as 3-15 psi or 4-20 mA.
sensor
indicator
transmitter
controller
Instrumentation that maintains a process variable at specific quantity
sensor
indicator
transmitter
controller
Instrumentation that records/ register process variable
recorder
indicator
transmitter
controller
Instruments that are powered by air or other gasses
pneumatic
electronic
hydraulic
computers
Instruments that are powered by electricity
pneumatic
electronic
hydraulic
computers
A continuously variable representation of a process variable.
analog
digital
electronic
hydraulic
Used binary numbers (0’s and 1’s) to represent continuous values or discrete states
analog
digital
electronic
hydraulic
An instrument that are located near the process
field instrument
remote instrument
far
near
An instrument that are located away from the process.
field instrument
remote instrument
far
near
Three types of pressure measurement
absolute pressure
differential pressure
gauge pressure
tank pressure
air pressure
When pressure is applied in ______________, an unbalanced resistance is developed causes the Wheatstone Bridge to produce an output voltage.
strain gauge pressure sensor
capacitive pressure sensor
LVDT pressure sensor
piezoelectric pressure sensor
When pressure is applied in _________, the distance between the conductive plate changes which develops an output voltage.
strain gauge pressure sensor
capacitive pressure sensor
LVDT pressure sensor
piezoelectric pressure sensor
When pressure is applied in ______________, the ferrite core moves which changes the conductance between the primary and secondary coils which produce output voltage.
strain gauge pressure sensor
capacitive pressure sensor
LVDT pressure sensor
piezoelectric pressure sensor
____________ uses crystal material which produces small voltage when pressure is applied.
strain gauge pressure sensor
capacitive pressure sensor
LVDT pressure sensor
piezoelectric pressure sensor
_______________ is a standardized CURRENT transmitter signal.
4-20 mA
3-15 mA
0-10 mA
1- 5 mA
_______________ is a standardized VOLTAGE transmitter signal.
4-20 VDC
3-15 VDC
0-10 VDC
1- 5 VDC
_______________ is a standardized PNEUMATIC transmitter signal.
4-20 psi
3-15 psi
0-10 psi
1- 5 psi
Pressure sensors used a TRANSMITTER to covert small signals generated by the sensor.
TRUE
FALSE
STRAIN gauge pressure sensor is more durable than CAPACITIVE pressure sensor.
TRUE
FALSE
The CRYSTAL MATERIALS produced voltage when HIGH TEMPERATURE is applied.
TRUE
FALSE
CAPACITIVE pressure sensor uses TRANSFORMER principle to generate voltage.
TRUE
FALSE
The primary coil of an LVDT is driven by an ALTERNATING CURRENT signal.
TRUE
FALSE
The primary coil of an LVDT is driven by an __________ signal.
AC
DC
square wave
sawtooth
From the given instrumentation loop, No. 1 refers to the __________.
sensor
transmitter
power source
loop
receiver
From the given instrumentation loop, No. 2 refers to the __________.
sensor
transmitter
power source
loop
receiver
From the given instrumentation loop, No. 3 refers to the __________.
sensor
transmitter
power source
loop
receiver
From the given instrumentation loop, No. 4 refers to the __________.
sensor
transmitter
power source
loop
receiver
From the given instrumentation loop, No. 5 refers to the __________.
sensor
transmitter
power source
loop
receiver
This device is called ______________.
pressure gauge
pressure transmitter
manometer
thermometer
This device is called ______________.
pressure gauge
pressure transmitter
manometer
thermometer
This device is called ______________.
pressure gauge
pressure transmitter
manometer
thermometer
From the pressure gauge shown, the black scale refers to which unit?
kPA
psi
Bar
Degrees Celcius
From the pressure gauge shown, the RED scale refers to which unit?
kPA
psi
Bar
Degrees Celcius
The unit of pressure that manometer provides is ___________.
kPA
psi
Bar
mmHg or mmH20
The unit of FLOW RATE is ___________.
gallons
gallons per minute
kilometer per hour
Degrees Celcius
The unit of LEVEL can be expressed as linear measurement in or percentage.
TRUE
FALSE
