Actuators

Question 1

devices which are used to produce motion or action, such as linear motion or angular motion.

Answer 1

actuators

Question 2

what are the 3 types of actuators?

Answer 2

electromechanical actuators
electrical actuators
hydraulic and pneumatic actuation system

Question 3

devices that convert electric energy into mechanical force in such a way as to execute work, mostly moving an object or a device.

Answer 3

electromechanical actuators

Question 4

it is consists of a coil and a movable iron core called the armature. When the coil is energized with current, the core moves to increase the flux linkage by closing the air gap between the cores.

Answer 4

solenoid

Question 5

it is a solenoid used to make or break mechanical contact between electrical leads.

Answer 5

electromechanical relay

Question 6

electrically operated switches that come in many shapes, sizes and power ratings suitable for all types of applications.

Answer 6

electromechanical relay

Question 7

it is a machine that converts electrical energy into mechanical torque.

Answer 7

electric motor

Question 8

what are the 6 basic parts of electric motor?

Answer 8

stator
field coil
rotor
armature
commutator
carbon brush

Question 9

it s a type of electric motor that are powered from direct current source.

Answer 9

DC motor

Question 10

With this type of DC motor, magnetic field is
produced by the current passing at the commutator through the carbon brushes

Answer 10

brushed dc motor

Question 11

what are the 3 ways brushed dc motor can be connected?

Answer 11

series
shunt
compound (short shunt or long shunt)

Question 12

this motor is typically consist of a rotor made of permanent magnets and a stator made of wound coils.

Answer 12

brushless dc motor

Question 13

it is a brushless DC electric motor that divides a full rotation into a number of equal steps.

Answer 13

stepper motor

Question 14

it is a rotary actuator that allows for precise control of angular position, velocity and
acceleration.

Answer 14

servo motor

Question 15

a type of electric motor that are powered from alternating current source.

Answer 15

AC motor

Question 16

what are the 2 categories of AC motor?

Answer 16

synchronous
induction motor

Question 17

in this motor, the stator and rotor both are excited separately. The excitation is the process of inducing the magnetic field on
the parts of the motor with the help of an
electric current. this motor is not a self-starting motor.

Answer 17

synchronous motor

Question 18

this motor works on the principle of induction where electro-magnetic field is induced into the rotor when rotating magnetic field of stator are cut by copper or aluminum bars embedded in the rotor. it is also the most common type that is used in residential, commercial, or industrial setting.

Answer 18

induction motor

Question 19

this motor is a rotating electric machine that is designed to operate on a three-phase supply. it can be squirrel-cage type or wound rotor type.

Answer 19

three-phase induction motor

Question 20

in this type of three-phase induction motor, copper or aluminum bars are embedded
in the rotor and are connected by end discs or rings on both ends.

Answer 20

squirrel-cage induction motor

Question 21

in this type of three-phase induction motor, Three sets of wires usually made of copper are placed in the slots of the rotor, one end of each set are connected together internally while the other end of the three sets are brought out through the use of three sets of slip rings.

Answer 21

wound rotor induction motor

Question 22

motor is a rotating electric machine that is designed to operate on single-phase supply.

Answer 22

single-phase induction motor

Question 23

in this type if single-phase IM, The auxiliary winding has a higher resistance-to-reactance ratio than the main winding, with the result that the two currents will be out of phase, as
indicated in the phasor diagram, which is representative of conditions at starting

Answer 23

split-phase motor

Question 24

this motor is also a split-phase motor, but the time-phase displacement between the two currents is obtained by means of a capacitor in series with the auxiliary winding.

Answer 24

capacitor start induction motor

Question 25

This motor is also called as a capacitor run motor in which a low capacitor is connected in series with the starting winding and is not removed from the circuit even in running condition.

Answer 25

permanent capacitor induction motor

Question 26

These motors are also called as two-value capacitor motors. It combines the advantages of capacitor start type and permanent capacitor type induction motors.

Answer 26

capacitor start capacitor run motor

Question 27

this motor is a motor, in which the auxiliary winding is composed of a copper ring or bar surrounding a portion of each pole to produce a weakly rotating magnetic field.

Answer 27

shaded-pole motor

Question 28

a system that is designed to move large loads by controlling a high-pressure fluid in distribution lines and pistons with mechanical or electromechanical valves.

Answer 28

hydraulic actuation system

Question 29

similar to check valves in that the sealing element is a poppet but they are actuated by mechanical or electrical means

Answer 29

poppet valves

Question 29

it is the simplest type of directional control valve used in hydraulic systems. It stops the flow of fluid in one direction and allow free flow in the opposite direction.

Answer 29

check valve

Question 30

this system is similar to hydraulic systems, but they use compressed air as the working fluid rather than hydraulic liquid.

Answer 30

pneumatic actuation system

Question 31

this motor is a special type of motor that runs on both AC and DC power supplies

Answer 31

universal motor

Question 32

compressed air is applied to only one side of this cylinder.

Answer 32

single-acting cylinder

Question 32

this converts energy into motion. the motion can be rotary or linear, depending on its type.

Answer 32

pneumatic actuators

Question 33

this cylinder is actuated in both directions with compressed air.

Answer 33

double-acting cylinder

Question 34

these are the devices that regulate the flow of a fluid by opening, closing, or partially obstructing various passageway.

Answer 34

valves