Daily capsule 29,30

Capsule 30______

Let's test your self

Q1- Which of the following connection doesn't have neutral point

Star connection

Delta connection

Parallel connection

Series connection

Q2- 230 V power supply is coming to our home. This 230 V refers to

RMS value

average value

peak to peak value

maximum value

Q3- Mass of an electron is

1.602 X 10^ -19 kg

6.2 X 10^ -18 kg

9.1 X 10^ -31 kg

none of the above

Q4- The ohm's law can not be applicable where

voltage varies

current varies

resistance varies

temperature varies

Q5- Which one of the following is an active transducer

thermister

thermocouple

LVDT

none of these

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Capsule 29______

Let's test your self

Q1- MCBs are used to protect the appliances against

Voltage

Current

Power

reverse current

Q2- KCL is based on

Law of conservation of energy

Law of conservation of power

Law of conservation of charge

Law of conservation of heat

Q3- Electrolyte is a

conducting liquid

insulating liquid

semi-conducting liquid

none of these

Q4-Which instrument has lowest resistance

voltmeter

power factor meter

tachometer

ammeter

Q5- 1 electrical HP is equals to

735.5 watt

700 watt

746 watt

800 watt

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eleCapsule 27,28

Capsule 27____________

Let's test your self

Q1-Series motor runs on

DC supply only

single phase supply only

both AC &DC supply

both single phase & three phase supply

Q2-The power factor of an ac supply can be determined by

R/Z

XL/R

Z/R

R/XL

Q3-The highest AC transmission voltage in india is

132kv

400kv

900kv

750kv

Q4- The purpose of choke in a fluorescent is to

increase the brightness of the tube

reduce the flicker

increase the starting current

increase the voltage momentarily

Q5-"danger 440 V" plates are

informal notices

caution notices

advisory notice

danger notice

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Capsule 28____________

Let's test your self

Q1- What is the voltage across the diode in the figure

Zero volt

0.7 V

5 V

8 V

Q2- Semiconductors are __________ temperature co-

        efficient.

zero

positive

negative

non-variable

Q3- The resistance of a short-circuit path is

infinite

zero ohm

high

none of the above

Q4- The rating of fuse is expressed in terms of

ampere

volt

VAR

KVA

Q5- Which instrument has the lowest resistance

megger

voltmeter

tachometer

ammeter

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Electrical daily capsule 26

Capsule 26
Let's test your self

Q1-Which type of motor is used in ceiling fan

resistance split phase motor

capacitor start motor

capacitor start capacitor run motor

slip ring motor

Q2-Area of hysteresis loop indicates

eddy current loss

hysteresis loss

copper loss

dielectric loss

Q3-For arc heating the electrode are made up of

copper

aluminium

ACSR conductor

graphite

Q4-If the frequency of supply increases, the skin effect is

increased

decreased

remain constant

none of these

Q5-A PN junction is a

oscilator

amplifier

insulator

rectrifier

Electrical daily capsule 24,25

Capsule 25

Let"s test your self

Q1-__________ coating is used to insulate the copper wire.

ceramic

mica

enamel

plastic

Q2-Motor used for elevators is

synchronous motor

universal motor

dc motor

induction motor

Q3-The power factor of industrial load is generally

lagging

leading

unity

zero

Q4-What is the no load speed of a DC series motor

very low

very high

medium

normal

Q5- Which circuit component opposes the change in voltage

inductor

capacitor

resistor

transistor

Capsule 24

Let's test your self

Q1-Power factor is lagging in case of

capacitor

inductor

resistor

diode

Q2-In RLC circuit the susceptance is

1/R

1/Z

1/X

1/C

Q3-_________ is the rate at which the work is done.

power

voltage

frequency

energy

Q4-In case of instantaneous power the frequency is

2 times

4 times

6 times

remain unchanged

Q5-Proton is ___________ times greater than an electron.

1837

5648

2543

equal

Electrical daily capsule 22,23

Capsule 23

Let's test your self

Q1-The reciprocal of magnetic reluctance is

permeance

reactance

resistance

conductance

Q2-The 2 type of conductors are

Electronic & metalic

electrolytic & ionic

metalic & ionic

p-type & n-type

Q3-The ability of charged body to do work is called

Power

force

energy

potential

Q4-The curve of ohm's law is

prabolic

linear

hyperbolic

tringular

Q5-Which instrument has the lowest resistance

voltmeter

ammeter

megger

power factor meter

Thank You

Capsule 22

Let's test your self

Q1-What is the reciprocal of impedance

conductance
reactance
admittance
susceptance

Q2-The unit of energy watt, can be written as

joule/second
joule/coulomb
kWh
ampere/second

Q3-Electrolyte is a

insulator
water
liquid
conducting liquid

Q4-Potential transformer is used to measure the

high current
high voltage
high power
impedance

Q5-The rating of fuse expressed in terms of

ampere
volt

kvA

kWh

Electrical daily capsule 20,21

Capsule 21
Let's test your self

Q1-The conventional flow of current is from

positive to negative

Negative to positive

lower potential

depends on EMF

Q2-The resistivity of a material depends upon the

length

area

material

volume

Q3-The potential of earth is

infinite

zero

equal to supply voltage

1volt

Q4-An electric motor may produce noise due to

magnetic effect

cooling air

defecting bearing

all of the above

Q5-Skin effect exist only in

Low voltage DC overhead line

high voltage Dc overhead line

cable carrying DC current

AC transmission

Capsule 20

Let's test your self

Q1-What is the sign of an electron

positive

negative

no sign

positive or negative

Q2-What is the unit of voltage gain

Volt

ampere

joule

no unit

Q3-An ideal current source has ___________ resistance.

Infinite

zero

100ohm

few

Q4-The unit of conductance is

siemens

ohm-m

mho-m

ohm

Q5-A FETs is essentially a

current driven source

power driven source

voltage driven source

peltier device