MODULE 03 - MOCK TEST 40 MARKS

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If circuit current is ( I ) and resistance is ( R) then power dissipated in that circuit is ……….

1 point

IR2

I2R

I2/R

R2/I

Clear selection

In an auto transformer the amplification factor (k) is

1 point

Much greater than unity

Much less than unity

Nearly equal to unity

Clear selection

Ferromagnetic material is ………

1 point

a) A material that easily allows magnetic flux through it

b) The material that opposes magnetic flux and it does not easily magnetized

c) As in (a) and its permeability is very high

d) As in (a) and its permeability is less than one

Clear selection

In Radio and TV transmission which of the following filter is used ……

1 point

a) Low pass filter

b) High pass filter

c) Band pass filter

d) Band stop filter

Clear selection

In DC motor electrical characteristics is………

1 point

a) Speed and armature current

b) Torque and armature current

c) Torque and speed

Clear selection

According to ohms law voltage ( V) = ……………….

1 point

a) IR

b) I/R

c) R/I

Clear selection

The unit of rate of flow of charge is

1 point

a) Ampere per second

b) Coulomb

c) Joule

Clear selection

MTCS regarding ohm’s law

1 point

a) It is used in DC circuit and a modified version of this can be used in AC circuit

b) For ohm’s law physical characteristics remain same

c) The temperature will vary

d) Both A & B

Clear selection

the property of magnetism and magnetic depends on

1 point

a) permitence

b) permeability

c) flux density

d) flux intensity

Clear selection

it is a voltage dependent metal oxide material whose resistance decrease sharply when increasing voltage

1 point

a) thermistor

b) register

c) varistoer

Clear selection

potentiometer is

1 point

a) 3 terminal device

b) 2 terminal device

c) as in a and used in volume control of radio

Clear selection

atomic mass number equal to

1 point

a) Proton + electron

b) proton + neutron

c) neutron + electron

Clear selection

force which tend to move an electron

1 point

a) electromotive force

b) magnetomotive force

c) electrostatic force

Clear selection

Measure the current in Wheatstone Bridge when deflection is read zero

1 point

a) ammeter

b) Galvanometer

c) voltmeter

Clear selection

Ferrite is ……………. Material has ferromagnetic

1 point

a) Metallic

b) insulator

c) semiconductor

Clear selection

It opposes the change in current

1 point

a) Lenz law

b) Farad law

c) Right hand rule

Clear selection

The no. of electron in outer shell of semiconductor is

1 point

a) 4

b) 3

c) 8

d) 2

Clear selection

The maximum electron in outer most orbit in any atom

1 point

a) 8

b) 4

c) 3

d) 5

Clear selection

In parallel connection of two capacitor

1 point

a) Current is additive

b) Power is additive

c) Voltage is additive

d) Both a & b

Clear selection

Diamagnetic material is

1 point

a) Iron

b) Nickle

c) Cobalt

d) Bismuth

Clear selection

The principle of magnetism depends on

1 point

a) Permittivity

b) Absolute permeability

c) Relative permeability

d) Both b & c

Clear selection

The unit of capacitance

1 point

a) q/v

b) v/q

c) Vq

Clear selection

If a circuit containing resistance & inductance then

1 point

a) Current will lag with voltage between an angle more than 0 degree and less than 90 degrees

b) Current will lead voltage by 90 degrees

c) Current will lag by 90 degrees

Clear selection

RMS value in half wave rectifier

1 point

a) 0.707 × peak value

b) 1.414 × peak value

c) maximum value of voltage or current

d) half value of Maximum current

Clear selection

Pair of dissimilar metal wire wound joined at one end and other is opened, if joined end sensed heat

1 point

a) Thermistor

b) Thermocouple

c) Thermometer

Clear selection

The time that required to charge to 63% of voltage source

1 point

a) Time constant

b) Time factor

c) Rate of charge

d) None

Clear selection

Material of brush in generator

1 point

a) High grade carbon, graphite

b) Bronze

c) Iron

Clear selection

Rheostat is

1 point

a) Two terminal device

b) 3 terminal device

c) 4 terminal device

Clear selection

Unit of electricity is

1 point

a) Coulomb

b) Current

c) Volt

Clear selection

What is the max. no. of electrons in shell M

1 point

a) 18

b) 32

c) 16

Clear selection

The substance having balance electron less than 4

1 point

a) Conductor

b) Insulator

c) Semi conductor

Clear selection

The substance having valance electron more than 4

1 point

a) Conductor

b) Insulator

c) Semi conductor

Clear selection

Power unit

1 point

a) J/q

b) J/sec.

c) J.q

d) J. Sec.

Clear selection

Lap winding used for

1 point

a) High current low voltage

b) Low current high voltage

c) Low voltage

d) High current

Clear selection

The ……………. has the same mass of proton but with no charge?

1 point

a) Electron

b) Neutron

c) Molecule

d) Atom

Clear selection

In a……………battery negative plate deteriorates

1 point

a) Primary

b) secondary

c) Both

Clear selection

The property of coil to induced e.m.f. in nearby coil is called

1 point

a) Self inductance

b) Self reactance

c) Mutual inductance

d) Mutual reactance

Clear selection

Which is used for a particular band of frequency

1 point

a) Band pass

b) Band stop

c) Band rejection

Clear selection

If capacitor is connected in parallel then total capacitance is

1 point

a) More than the smallest capacitor

b) Capacitance is additive

c) Voltage across all capacitor are same

d) AOA

Clear selection

The ……………. has the same mass of proton but with no charge?

1 point

a) Electron

b) Neutron

c) Molecule

d) Atom

Clear selection

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