Electrical Engineering

A single-speed squirrel-cage induction motor has one rated speed at which it runs when supplied with ...

A single-speed squirrel-cage induction motor has one rated speed at which it runs when supplied with ...

A single-speed squirrel-cage induction motor has one rated speed at which it runs when supplied with the nameplate voltage and frequency.  

▸ true

▸ false

thallium81   60   1 Reply

ssong07

A separately excited DC motor has the armature and field coils fed from separate supply sources.

A separately excited DC motor has the armature and field coils fed from separate supply sources.

A separately excited DC motor has the armature and field coils fed from separate supply sources.

▸ true

▸ false

lindseyw   61   1 Reply

drdavid

A DC series motor runs fast with a light load.

A DC series motor runs fast with a light load.

A DC series motor runs fast with a light load.

▸ true

▸ false

jayboskeet   57   1 Reply

teamroket

With reference to the motor installation shown, the Code requires that the disconnect switch be no ...

With reference to the motor installation shown, the Code requires that the disconnect switch be no ...

[html]With reference to the motor installation shown, the Code requires that the disconnect switch be no more than ________ feet within sight of the motor.

aryaelfkind   55   1 Reply

heavenlyangel

The voltage induced into the armature of a DC motor is known as the

The voltage induced into the armature of a DC motor is known as the

The voltage induced into the armature of a DC motor is known as the

▸ armature reaction.

▸ applied voltage.

▸ IR voltage drop.

▸ CEMF.

mb83   60   1 Reply

deathnature9

The split-phase motor shown is aPhoto: I. Pilon/Shutterstock

The split-phase motor shown is aPhoto: I. Pilon/Shutterstock

[html]The split-phase motor shown is a

lcard044   63   1 Reply

hannahfeng

The split-phase motor shown is a ________ type.

The split-phase motor shown is a ________ type.

[html]The split-phase motor shown is a ________ type.

pinkkurage   59   1 Reply

elacevedo

The single-phase motor rotor shown is a

The single-phase motor rotor shown is a

[html]The single-phase motor rotor shown is a

make7upurs   60   1 Reply

chandlerdeane

The single-phase motor connection shown is that of a

The single-phase motor connection shown is that of a

[html]The single-phase motor connection shown is that of a

swimchk13   56   1 Reply

Ignesias

The shunt-type DC motor is known to have

The shunt-type DC motor is known to have

The shunt-type DC motor is known to have

▸ high staring torque.

▸ poor voltage regulation.

▸ good speed regulation.

▸ heavy gauge field windings.

bananas87   52   1 Reply

lyssa1605

The rotor of a squirrel-cage induction motor is constructed using

The rotor of a squirrel-cage induction motor is constructed using

[html]The rotor of a squirrel-cage induction motor is constructed using  

▸ single bars short-circuited by end rings.

▸ wire windings short-circuited by end rings.

▸ single bars connected to slip rings.

▸ wire windi

kristen299   63   1 Reply

raihala49

The position of the centrifugal switch shown would be that when the motor is

The position of the centrifugal switch shown would be that when the motor is

[html]The position of the centrifugal switch shown would be that when the motor is

cjr4808   59   1 Reply

kaitmaw

The motor braking device shown is a(n)Photo: Warner Electric LLC

The motor braking device shown is a(n)Photo: Warner Electric LLC

[html]The motor braking device shown is a(n)

thedrunkmind   54   1 Reply

HCho0

For the two-speed, two winding induction motor connection shown,

For the two-speed, two winding induction motor connection shown,

[html]For the two-speed, two winding induction motor connection shown,

henry11   46   1 Reply

omolola69

For the three-phase stator winding shown, the three sets of windings are placed ________ electrical ...

For the three-phase stator winding shown, the three sets of windings are placed ________ electrical ...

[html]For the three-phase stator winding shown, the three sets of windings are placed ________ electrical degrees apart.

Neurosciencie   60   1 Reply

mkql12

For the three-phase motor diagram shown, the direction of the rotation of the magnetic field can be ...

For the three-phase motor diagram shown, the direction of the rotation of the magnetic field can be ...

[html]For the three-phase motor diagram shown, the direction of the rotation of the magnetic field can be changed by interchanging power line leads

vikingblood   53   1 Reply

dreamkhei

For the split-phase motor diagram shown, #2 is the

For the split-phase motor diagram shown, #2 is the

[html]For the split-phase motor diagram shown, #2 is the

rhialways659   58   1 Reply

Redhawt75

For the split-phase motor diagram shown, #1 is the

For the split-phase motor diagram shown, #1 is the

[html]For the split-phase motor diagram shown, #1 is the

nitnit   48   1 Reply

hmging94

For the spilt-phase motor diagram shown, #3 is the

For the spilt-phase motor diagram shown, #3 is the

[html]For the spilt-phase motor diagram shown, #3 is the

opfaluyi   58   1 Reply

pigglyoink14

For the motor circuit shown, arrow #4 points to the

For the motor circuit shown, arrow #4 points to the

[html]For the motor circuit shown, arrow #4 points to the

samanthakay   45   1 Reply

marksonbol

For the motor circuit shown, arrow #3 points to the

For the motor circuit shown, arrow #3 points to the

[html]For the motor circuit shown, arrow #3 points to the

marmech12   56   1 Reply

Sagxar

For the motor circuit shown, arrow #1 points to the

For the motor circuit shown, arrow #1 points to the

[html]For the motor circuit shown, arrow #1 points to the

itpf04   57   1 Reply

skdiveelis

For a two-speed single-winding consequent pole motor the low speed on a single-winding consequent ...

For a two-speed single-winding consequent pole motor the low speed on a single-winding consequent ...

[html]For a two-speed single-winding consequent pole motor the low speed on a single-winding consequent pole motor is always

▸ one-quarter of the higher speed.

▸ one-third of the higher speed.

▸ one-half of the higher speed

jason23   56   1 Reply

hannahfeng

DC compound motors are used to operate loads that require

DC compound motors are used to operate loads that require

[html]DC compound motors are used to operate loads that require

▸ relatively constant speed under varying loads.

▸ low starting torque.

▸ frequent reversing of the motor.

▸ frequent start and stops of the motor.

biokam   49   1 Reply

mattyca001

A DC series motor

A DC series motor

[html]A DC series motor

▸ is frequently operated without a load.

▸ should never be operated without a load.

▸ develops a near constant speed regardless of the load conditions.

▸ should never be subjected to wide var

jkim3464   52   1 Reply

12Jfiscus

________ stops a three-phase motor quickly by connecting the motor for reverse rotation while the ...

________ stops a three-phase motor quickly by connecting the motor for reverse rotation while the ...

[html]________ stops a three-phase motor quickly by connecting the motor for reverse rotation while the motor is still running in the forward direction.  

▸ Stalling

▸ Motoring

▸ Plugging

▸ Friction braking[/htm

tweb28   64   1 Reply

olskee

Tungsten-halogen lamps operate at higher temperatures than conventional tungsten bulbs.

Tungsten-halogen lamps operate at higher temperatures than conventional tungsten bulbs.

Tungsten-halogen lamps operate at higher temperatures than conventional tungsten bulbs.

▸ true

▸ false

NNF1024   55   1 Reply

dangoon

Switching always takes place in the ungrounded (hot) conductor.

Switching always takes place in the ungrounded (hot) conductor.

Switching always takes place in the ungrounded (hot) conductor.

▸ true

▸ false

Baradar   42   1 Reply

bcyber

Single-pole switches may be installed backward so that the controlled light(s) is(are) ON when the ...

Single-pole switches may be installed backward so that the controlled light(s) is(are) ON when the ...

Single-pole switches may be installed backward so that the controlled light(s) is(are) ON when the switch handle indicates OFF.

▸ true

▸ false

SHABBA027   51   1 Reply

bjee231

Handling the bulb surface of a halogen lamp with your bare hands can shorten the life of the lamp.

Handling the bulb surface of a halogen lamp with your bare hands can shorten the life of the lamp.

Handling the bulb surface of a halogen lamp with your bare hands can shorten the life of the lamp.

▸ true

▸ false

punkybrewster   51   1 Reply

diana72g

Electronic ballasts operate the lamp at significantly lower than line frequency.

Electronic ballasts operate the lamp at significantly lower than line frequency.

Electronic ballasts operate the lamp at significantly lower than line frequency.

▸ true

▸ false

sanimkyei   52   1 Reply

sbbalt

Compared to incandescent lamps, fluorescent lamps do not last as long.

Compared to incandescent lamps, fluorescent lamps do not last as long.

Compared to incandescent lamps, fluorescent lamps do not last as long.

▸ true

▸ false

renielle   59   1 Reply

Napoukah

An incandescent lamp operates on the principle of heating a wire to a high temperature until it glows.

An incandescent lamp operates on the principle of heating a wire to a high temperature until it glows.

An incandescent lamp operates on the principle of heating a wire to a high temperature until it glows.

▸ true

▸ false

chief333   55   1 Reply

sbbalt

Alternating current or direct current switches are typically of heavier construction than AC-only ...

Alternating current or direct current switches are typically of heavier construction than AC-only ...

Alternating current or direct current switches are typically of heavier construction than AC-only switches.

▸ true

▸ false

tootsiebrowny   59   1 Reply

scmhack

All fluorescent lamps contain mercury.

All fluorescent lamps contain mercury.

All fluorescent lamps contain mercury.

▸ true

▸ false

akempire   51   1 Reply

john august t

Which type of lamp control device would you use for an outdoor parking area?

Which type of lamp control device would you use for an outdoor parking area?

Which type of lamp control device would you use for an outdoor parking area?

▸ light sensor

▸ occupancy sensor

▸ smart switch

▸ dimmer switch

jene277   55   1 Reply

olsondi

To control a switch from two locations requires

To control a switch from two locations requires

To control a switch from two locations requires  

▸ two-single pole switches.

▸ one single-pole and one 3-way switch.

▸ two three-way switches.

▸ one 3-way and one four-way switch.

lindseyw   49   1 Reply

nemisis

To control a switch from three locations requires

To control a switch from three locations requires

To control a switch from three locations requires  

▸ three-single pole switches.

▸ two single-pole and one three-way switch.

▸ three three-way switches.

▸ two three-way and one four-way switch.

sweetapple718   58   1 Reply

wellsar

The type of lamp shown is a(n) ________ type.Courtesy of Osram Sylvania Inc.

The type of lamp shown is a(n) ________ type.Courtesy of Osram Sylvania Inc.

[html]The type of lamp shown is a(n) ________ type.

janeniz   51   1 Reply

Mspractical

The switch shown is aPhoto: Courtesy of Cooper Wiring Devices

The switch shown is aPhoto: Courtesy of Cooper Wiring Devices

[html]The switch shown is a

B88101   64   1 Reply

angelord2510