AB Automation, Instrumentation, and Control System Flashcards
Agricultural and Biosystems Automation and Instrumentation refers to the use and application of agricultural and biosystems:
A. Circuits
C. Sensors
B. Instruments
D. Integrated circuits
C. Sensors
It senses the physical changes occur in the surrounding and converting it into a readable quantity.
A. Transducer
C. Actuator
B. Sensor
D. None of these
B. Sensor
It is used to measure process variables for system monitoring diagnosis, supervisory control and for a variety of other purpose.
A. Transducer
C. Actuator
B. Sensor
D. None of these
B. Sensor
The device that can perform the control actions and drive the plant directly.
A. Transducer
C. Actuator
B. Sensor
D. None of these
C. Actuator
Sensor and signal conditioning jointly referred as:
A. Transducer
C. Actuator
B. Sensor
D. None of these
A. Transducer
An instrument that is equipped with strain gauge installed at the dynamometer shaft to determine the torque delivered by an engine.
A. Amplifier
C. Tachometer
B. Transducer
D. None of these
B. Transducer
It is also known as a “self-generating transducer”.
A. Active transducer
C. Analog transducer
B. Passive transducer
D. None of these
A. Active transducer
Capacitive transducer is used for:
A. Static measurement
C. Transient measurement
B. Dynamic measurement
D. Both A and B
B. Dynamic measurement
Which of the following represent active transducer?
A. Strain gauge
C. Thermocouple
B. Thermistor
D. None of these
C. Thermocouple
Which of the following is not a characteristic of an ideal transducer?
A. High dynamic range
C. High repeatability
B. Low linearity
D. Low noise
B. Low linearity
In a measuring system quantity under measurement is termed as:
A. Measurand
C. Sensors
B. Controllers
D. Indicators
A. Measurand
It can be defined as the tolerance within which a measurement can be repeated.
A. Resolution
C. Precision
B. Accuracy
D. Scale
C. Precision
It is a popular technique for transmitting data in embedded systems.
A. Analog voltage
C. Serial digital
B. Pulse Width Modulation (PWM)
D. All of these
B. Pulse Width Modulation (PWM)
It is a technique for getting analog results with digital means.
A. Analog voltage
C. Serial digital
B. Pulse Width Modulation (PWM)
D. All of these
B. Pulse Width Modulation (PWM)
______ signals are much more susceptible to noise.
A. Analog
C. Both A and B
B. Digital
D. None of these
A. Analog
The analog to digital conversion in a measurement system takes place inside:
A. Transducer
C. Display
B. Signal processor
D. Led
B. Signal processor
Which devices measures gases or liquid?
A. Proximity sensor
C. Temperature sensor
B. Pressure sensor
D. Touch sensor
B. Pressure sensor
Which sensor measures the pressure relative to perfect vacuum?
A. Absolute pressure sensor
C. Vacuum pressure sensor
B. Gauge pressure sensor
D. Differential pressure sensor
A. Absolute pressure sensor
Which sensor measure the pressure relative to atmospheric pressure?
A. Absolute pressure sensor
C. Vacuum pressure sensor
B. Gauge pressure sensor
D. Differential pressure sensor
C. Vacuum pressure sensor
Barometer is which type of sensor?
A. Pressure sensor
C. Humidity sensor
B. Temperature sensor
D. Touch sensor
A. Pressure sensor
Touch screen devices use which sensor?
A. Pressure sensor
C. Humidity sensor
B. Temperature sensor
D. Touch sensor
Which sensor is LM35?
A. Pressure sensor
C. Humidity sensor
B. Temperature sensor
D. Touch sensor
B. Temperature sensor
Which of the following is a temperature sensor?
A. LM35
C. STSC1
B. DS18B20
D. All of these
D. All of these
Electric motor protection has which sensor?
A. Pressure sensor
C. Humidity sensor
B. Temperature sensor
D. Touch sensor
B. Temperature sensor
Which type of temperature sensor is placed in Integrated Circuits?
A. Semiconductor based sensor
C. Thermocouple
B. Resistance Thermometer
D. Thermistor
A. Semiconductor based sensor
Which of the following is a humidity sensor?
A. Hygrometer
C. Seismoscope
B. Gyroscope
D. None of these
A. Hygrometer
Which sensors measure the moisture level using humidity?
A. Capacitive Sensor
C. Both A and B
B. Resistive Sensor
D. None of these
A. Capacitive Sensor
Which of the following is a motion sensor?
A. Piezoelectric sensor
C. MPU 6050
B. PIR sensor
D. Node MCU
B. PIR sensor
Proximity sensor is used for:
A. Sensing humidity
C. Sensing heat
B. Sensing the presence of nearby objects
D. Measuring distance
B. Sensing the presence of nearby objects
The monitoring of machines, gears and objects are achieved by which sensor?
A. Humidity sensor
C. Touch sensor
B. Proximity sensor
D. Pressure sensor
B. Proximity sensor
Which proximity sensor detects metal objects?
A. Capacitive Proximity Sensor
C. Optical Proximity Sensor
B. Magnetic Proximity Sensor
D. Inductive Proximity Sensor
D. Inductive Proximity Sensor
Which proximity sensor indicates level?
A. Capacitive Proximity Sensor
C. Optical Proximity Sensor
B. Magnetic Proximity Sensor
D. Inductive Proximity Sensor
A. Capacitive Proximity Sensor
Which proximity sensor detects positioning of an object?
A. Capacitive Proximity Sensor
C. Optical Proximity Sensor
B. Magnetic Proximity Sensor
D. Inductive Proximity Sensor
C. Optical Proximity Sensor
Which device generates output signal when metal objects are either inside or entering into sensing area?
A. Capacitive Proximity
C. Parallel Proximity
B. Magnetic Proximity
D. Inductive Proximity
D. Inductive Proximity