Other Sensors and Transducers Control Devices

Question 1

These transducers are preferred when measuring the displacement (how much distance it covers), pressure, and other several physical quantities.

Answer 1

Capacitive Transducer

Question 2

Dielectric medium in Capacitive Transducer

Answer 2

Air

Question 3

The distance between these two metal plates and the positions of the plates can change the capacitance.
True/False

Answer 3

True

Question 4

The basic difference between the normal capacitors and capacitive transducers is,
the capacitor plates are constant in normal capacitors wherein these transducers,
capacitor plates are the movable condition.
True/False

Answer 4

True

Question 5

Are temperature sensors that
contain a resistor that changes resistance
value as its temperature changes.

Answer 5

Resistance Temperature
Detectors (RTDs)

Question 6

As the temperature of a metal increases, so
does the resistance to the flow of electricity
True/False

Answer 6

True

Question 7

Is used to measure the resistance of the current being passed through it

Answer 7

resistance element

Question 8

Consists of two different materials with different expansion coefficients that are bonded together.

Answer 8

bimetallic strip

Question 9

The first fundamental. States that the metals expand or contract based on variation in temperature

Answer 9

thermal expansion

Question 10

The second fundamental. States that where each metal (having its temperature coefficient) expands or contracts differently at a constant temperature

Answer 10

temperature coefficient

Question 11

Is a sensor whose resistance varies with applied force; It converts force, pressure, tension, weight, etc., into a change in electrical
resistance which can then be measured.

Answer 11

Strain gauge

Question 12

When external forces are applied to a stationary object, _____ and _____ are the result.

Answer 12

stress and strain

Question 13

Is defined as the object’s internal resisting forces, and strain is defined as the displacement and
deformation that occur.

Answer 13

Stress

Question 14

Detect changes and disturbances in a magnetic field like flux, strength, and direction.

Answer 14

Magnetic sensors

Question 15

Is an instrument that measures the distance to an object using ultrasonic sound waves. Uses a transducer to send and receive ultrasonic pulses that relay back information about an object’s proximity.

Answer 15

ultrasonic sensor

Question 16

Are a timing device that measure
times of the changes in state of an infrared beam
that is blocked by a flag of known length, as
well as the times the beam is unblocked.

Answer 16

Photogates / Photogate Sensor

Question 17

Are used all over that electrical or electronic circuits are utilized. They are found in submarines, computers, airships, TVs, ships, space vehicles, restorative disobedient, and many other places.

Answer 17

Circuit control devices

Question 18

3 types of Control Devices

Answer 18

• Switches
• Relays
• Solenoid

Question 19

2 Types of Switches

Answer 19

• Mechanical Switches
• Electronic Switches

Question 20

Is a type of switch that must be
activated physically, by moving,
pressing, releasing, or touching its
contacts.

Answer 20

Mechanical switches

Question 21

Types of Mechanical Switches

Answer 21

• SPST (Single Pole Single Throw)
• SPDT (Single Pole Double Throw)
• DPDT (Doble Pole Double Throw)
• Push Button
• Toggle Switch

Question 22

This type of Mechanical switch has the most basic component. It has only one input and one output contact.

Answer 22

SPST (Single Pole Single Throw)

Question 23

This type of Mechanical switch has two ON position as it has one input contact and two output contact

Answer 23

SPDT (Single Pole Double Throw)

Question 24

This type of Mechanical switch, has two ON positions. It works like two SPDT operating at the same time.

Answer 24

DPDT (Doble Pole Double Throw)

Question 25

A type of Mechanical switch that is a momentary contact switch that makes or breaks connection as long as pressure is applied (or when the button is pushed).

Answer 25

Push Button

Question 26

Is actuated by moving a lever back and forth to open or close an electrical circuit.

Answer 26

toggle switch

Question 27

Are generally called as solid-state switches because there are no physical moving parts and hence the absence of physical contacts.

Answer 27

electronic switches

Question 28

Different types of solid-state switches

Answer 28

• BJT
• Diode

Question 29

Is a type of electronic switch that works similar to the simple switches that allows and disallows current to flow through.

Answer 29

BJT

Question 30

Can switch the circuit when the supply surpasses the barrier potential. Germanium
and silicon are usually used

Answer 30

Diode

Question 31

Is a device that acts upon the same fundamental principle as the solenoid.

Answer 31

RELAY

Question 32

Is the generic term for a coil of wire used as an electromagnet. It also refers to any device that converts electrical energy to mechanical energy using a solenoid. The device creates a magnetic field from electric current and uses the magnetic field to create linear motion

Answer 32

Solenoid