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WorksheetsFinal activity
Total questions: 25
Worksheet time: 7mins
The following are examples of actuators except:
LED
Piston
Sound
Switches
The ON and OFF time of a buzzer can be controlled using PLC control system.
True
False
The following are tactile sensor except
force sensor
position sensor
inductive sensor
torque sensor
Inputs to a monitoring and control system, prior to processing , can come from
sensors
both sensors and actuators
actuators
transducers
A smoke alarm is an example of
a monitoring system
a monitoring and control system
a control system
a sensor
Which of the following is a property of a tactile sensor?
pressure sensitive
input voltage sensitive
humidity sensitive
touch sensitive
A digitally controlled door lock would be most likely to use which actuator?
a DC motor
a solenoid
a servo
an RFID
A sensor is a type of a transducer.
True
False
LED and laser emit radiation in ____
narrow range
wide range
medium bandwidth
unpredictable bandwidth
SONAR stands for
sound navigation and ranging
sound network for advance response
sound navigation and radar
social navigation for advance response
A thermocouple generate an output voltage according to its ____.
circuit parameter
humidity
temperature
voltage
Every hot body emits IR radiation.
True
False
Which of the following is not an analog sensor?
potentiometer
force-sensing resistor
accelerometer
none of these
Basically, sound waves are _____.
voltage signals
pressure waves
current
radiation
Which of the following is not a character of a sensor of a sound wave?
causes no health hazard
they are suitable in a harsh environment
they are only suitable in cold environment
they are used in corrosive environment
Sound waves are similar to lights waves in all aspects.
True
False
Motor is a rotary actuator.
True
False
The basic function of a spring in a control valve is to
characterize flow
oppose the diaphragm so as to position the valve according to the signal pressure
close the valve if air failure occurs
open the valve if air failure occurs
It is a type of sensor that detects metal.
proximity sensor
inductive proximity sensor
capacitive proximity sensor
photoelectric sensor
In which country was the first CCTV system was introduced?
India
China
Germany
USA
What is the full form of CCTV?
Closed Circuit Television
Circuit Capacitor Television
Community Circuit Television
Closed Capacitor Telephone
Ladder logic programming consists primarily of
virtual relay coils and contacts
logic gate symbols with connecting lines
function blocks with connecting lines
text-based code
In PLC programming, a retentive function is one that
defaults to the 'ON' state
is not reset after a power cycle
defaults to the 'OFF' state
cannot be edited or deleted
Which of the following is the sensing element of an IR thermal detector?
thermocouple
thermopile
bolometer
all of these
Generator is a rotary actuator
True
False
