Question # 1

A heater coil rated at (1000 W - 200 V) is connected to 110 volt line. What will be the power consumed?

Choose an answer

200 W

302.5

250 W

350 W

Most practical applications of electricity involve

Choose an answer

Charges at rest

Charges in motion

Electrons at rest

Atoms in motion

Molecules in motion

The net force acting on a 100 kg man standing in an elevator accelerating downward with a = 0.8 m sec^-2comes out to:

Choose an answer

980 N

580 N

1380 N

Zero

Conventionally the angular velocity is directed at an angle of

Choose an answer

90° to the axis of rotation

30° to the axis of rotation

0° to the axis of rotation

None of the above

The chemical properties of an element depends upon the number of

Choose an answer

electron

position

photons

neutrons

If R is gas constant for 1 gram mole, C_pand C_vare specific heat for a solid then

Choose an answer

C_p- C_v= R

C_p- C_{v < R}

C_p- C_{v = 0}

C_p- C_{v > R}

The current produced by moving a loop of wire across a magnetic field is called

Choose an answer

Direct current

Magnetic current

Alternating current

Induced current

None of these

When a body moves against the force of friction on a horizontal plane, the work done by the body is:

Choose an answer

Positive

Negative

Zero

None of these

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Choose an answer

very high temperature

very low temperature

any one of them

none of them

The strength of magnetic field at certain points around a wire depends upon:

Choose an answer

Value of current passing

Distance from the current element

Color of the material

Both (A) and (B)

Both (B) and (C)

A solenoid is a coil of wire which is:

Choose an answer

Short, loosely wound, cylindrical

Long, tightly wound, spherical

Long, loosely wound, cylindrical

Long, tightly wound, cylindrical

None of these

Which of the following is not mechanical wave?

Choose an answer

Sound wave

Light wave

wave produced in spring

None of them

To and from motion of a body about its mean position is known as:

Choose an answer

Translatory motion

Vibratory motion

Rotatory motion

None of these

A curie represents a very strong source of

Choose an answer

α-particle

β-particle

γ-particle

none of these

A capacitor is charged with a battery and then it is disconnected. A slab of dielectric is now inserted between the plates, then

Choose an answer

The charge in the plates reduces and potential difference increase

Potential difference between the plates increase, stored energy decreases and charge remains the same

Potential difference between the plates decreases and charge remains unchanged

None of the above

In solids, only following type/s of wave can travel:

Choose an answer

Transverse

Longitudinal

Both A and B

None of them

With age, least distance of distinct vision:

Choose an answer

Increases

Decreases

Is not affected

None is correct

In the reverse process, the working substance passes through the same stages as in the direct process and

Choose an answer

thermal effects at each stage are exactly reversed

mechanical effects at each stage are exactly reversed

thermal and mechanical effects at each stage remain the same

thermal and mechanical effects at each stage are exactly reversed

The neighbours of every molecule in crystalline solids are arranged in

Choose an answer

an irregular manner

a regular manner

any manner

none of them

Light has:

Choose an answer

Wave nature

Particle nature

Dual nature

None of these

The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called

Choose an answer

nuclear fission

nuclear fusion

man defect

radioactivity

The highest value reached by the voltage or current:

Choose an answer

In quarter cycle is called Instantaneous value

In half cycle is called peak-to-peak value

In one cycle is called peak value

In half cycle is called Instantaneous value

None of these

If the distance between two charges is doubled, the force between them will become:

Choose an answer

Double

Half

Three times

One fourth

One third

Current varies with voltage

Choose an answer

Inversely

as square root

Directly

None of these

In photoelectric effect the energy of ejected electrons depend on

Choose an answer

The frequency

The intensity

Both frequency and intensity

None of these

Where the streamlines are very far apart from each other, the pressure will be

Choose an answer

low

zero

high

all of them

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

Choose an answer

32°C

-32°C

-40°C

-212°C

Which is modified form of galvanometer

Choose an answer

potentiometer

battery

voltmeter

slide wire bridge

From sand, we get a material used for construction of computer chips. That material is called:

Choose an answer

Germanium

Silicon

Copper

Lead

If a charged spherical conductor of radius 10 cm has potential V at a point distance 5 cm from its centre, then the potential at a point distance 15 cm from the centre will be

Choose an answer

1/3 V

2/3 V

3/2 V

3V

The whole structure obtained by the repetition of unit cells is called:

Choose an answer

Crystal lattice

Amorphous solid

Polymeric solid

Polysterne

None of these

More Classes

Other Links

Physics ECAT Pre Engineering Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer