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Industrial Sensors

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What kind of sensing device is this?

a)

Limit Switch

b)

PBNC Switch

c)

Reed Switch

d)

Toggle Switch

2.

Pressure, Temperature and Flow are industrial quantities considered as:

a)

Analog Inputs

b)

Digital Inputs

c)

Interface Inputs

d)

Logic Inputs

3.

This type of sensors provide positive output voltage when the Sensor is "ON"

a)

NPN Sensors

b)

PNP Sensors

c)

PTC Sensors

d)

TTL Sensors

4.

Robotic Inputs and PLC Inputs are considered as:

a)

Control Systems

b)

Digital to Analog Converters

c)

Interface Circuits

d)

Operational Amplifiers

5.

____________ is the production of potential difference across a current-carrying conductor that is perpendicular with the current direction and to an applied magnetic field.

a)

Capacitive Charging

b)

Hall Effect

c)

Residual Magnetism

d)

Resistive Property

6.

This sensor device is called

a)

Capacitive Proximity Sensor

b)

Inductive Proximity Sensor

c)

PBNC Switch

d)

Photoelectric Sensor

7.

These are devices that require physical contact with the item being monitored for proximity.

a)

Capacitive Sensors

b)

Inductive Sensors

c)

Magnetic Switches

d)

Mechanical Switches

8.

An NPN Inductive Proximity Sensor provides ____________ control signal to drive output devices.

a)

Active High

b)

Active Low

c)

Hall Current

d)

Varying Voltage

9.

This device requires positive voltage applied to the Base in order to conduct current from the Collector to the Emitter.

a)

Unijunction Transistor

b)

PNP Transistor

c)

NPN Transistor

d)

Field Effect Transistor

10.

In connecting the cable into the M12 Connector, the Brown wire pertains to:

a)

Output 1

b)

Output 2

c)

(V+)

d)

(V-)

11.

These are devices that measure physical properties and provide feedback to a control system.

a)

Actuators

b)

I/O Devices

c)

Relays

d)

Sensors

12.

This is a ____________.

a)

Diffuse Reflective Sensor

b)

Photoelectric Sensor

c)

Retro-reflective Sensor

d)

Thru-beam Sensor

13.

These are interface modules receiving signals from sensors.

a)

Heating Elements

b)

Input Devices

c)

Output Devices

d)

Wheatstone Bridge

14.

Platinum is typically used in RTDs because

a)

it is not used for high temperature ranges.

b)

it has lower temperature coefficient.

c)

it has linear relationship between resistance and temperature.

d)

it is cheaper than silver or gold.

15.

It is the electrical circuit used to measure unknown electrical resistance by balancing the two legs of the circuit structure, one leg of which includes the unknown component.

a)

Darlington Pair

b)

Totem-pole Connection

c)

Voltage Divider

d)

Wheatstone Bridge

16.

This sensing device is called

a)

Capacitive Sensor

b)

Inductive Sensor

c)

Reed Sensor

d)

Thru-beam Sensor

17.

The semiconductor device used to amplify or to switch electrical signals is called:

a)

Thermistor

b)

Thyristor

c)

Transducer

d)

Transistor

18.

What is this sensor device?

a)

Capacitive Proximity Sensor

b)

Inductive Proximity Sensor

c)

Limit Switch

d)

Photoelectric Sensor

19.

Digital input vary depending on:

a)

Sensor Configuration

b)

Storage Configuration

c)

Substance Configuration

d)

System Configuration

20.

Control signals that are seen as Binary bits of logic "0" and logic "1" are considered:

a)

analog input

b)

decoder input

c)

digital input

d)

power input