Question # 1

Electric field strength is defined as

Choose an answer

Work done on unit charge

Force exerted on unit charge

Distance covered by unit charge

Power exerted by unit charge

None of these

The average value of current and voltage over a cycle is

Choose an answer

Positive

Negative

Zero

May be positive or negative

A water hose with an internal diameter of 20 mm at the outlet discharges 30 kg of water in 60 s. What is water speed at the outlet if density of water is 1000 kg/m³during its steady flow

Choose an answer

1.3 m/s

1.6 m/s

1.9 m/s

2.2 m/s

The existence of position was predicted by Dirace in

Choose an answer

1920

1925

1930

1928

At ordinary temperature, an increase in temperature increases the conductivity of

Choose an answer

Conductor

Semiconductor

Insulator

Alloy

A bar 1.0 m in length and located along x-axix moves with a speed of 0.75 c with respect to a stationary observer. The length of the bar as measured by the stationary observer is

Choose an answer

1.66 m

1.0 m

0.66 m

2.66 m

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

Which of the following statements for an object in equilibrium is not true?

Choose an answer

The object must be at rest

The object can be at rest

The object is moving at constant speed

The acceleration of the object is zero

What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10^-2Wb, and change in current is 0.01 A?

Choose an answer

2 H

3 H

1/2 H

Zero

The gavanometer constant of a moving coil galvanometer is given by

Choose an answer

K=BAN/C

K=BN/CA

K=NAC/B

K=C/BAN

Tick the correct answer:

Choose an answer

Torque is a vector quantity

Torque is the turning effect of a force

Torque is called moment of a force

All of above

In an ideal gas, the molecules have:

Choose an answer

Kinetic energy only

Potential energy only

Both KE and PE

None of these

A virtual image is formed when object is placed:

Choose an answer

Within focal length of a convex lens

Near the focal point of a concave lens

Both A and B

Away from 2F of a convex lens

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Choose an answer

F = B²

F = 0

F = B

F = B/2

The image of an object 5 mm length is only 1 cm high. The magnification produced by lens is:

Choose an answer

1

0.2

2

0.1

If one end of a rubber cord is fixed with a support and the other end is wiggled by hand, the waves generated on the card are:

Choose an answer

Stationary waves

Transverse waves

Both of these

None of these

Transformer is used to

Choose an answer

Increase alternating current

Increase d.c voltage

Increase & Decrease emf

All answers are right

Work has a dimension as that of:

Choose an answer

Torque

Angular momentum

Linear momentum

Power

A car is moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:

Choose an answer

38 m/sec

3.8 m/sec

0.6 m/sec

None of these

The inkjet printer ejects a thin stream of:

Choose an answer

Water

Oil

Ink

Any of above

None of these

Which of the following types of force can do no work on the particle on which it acts

Choose an answer

Frictional force

Gravitational force

Electric force

Centripetal force

Absolute temperature can be calculated by

Choose an answer

Means squares velocity

Motion of the molecule

Both A and B

None of these

The amount of energy equivalent to 1 a.m.u is

Choose an answer

9.315 Mev

93.15 Mev

931.5 Mev

2.22 Mev

The application of Bernoulli's equation is

Choose an answer

Torricelli's theorem

Venture relation

Binomial theorem

Both a and b

When quarter of a circle is completed, the phase of vibration is:

Choose an answer

90°

180°

45°

360°

The pressure will change in the pipe, as the fluid moves through that pipe of varying

Choose an answer

cross-section

height

none of them

both of them

Slope of velocity time graph represents:

Choose an answer

Acceleration

Speed

Torque

Work

A container has a small hole in the bottom. Air can go through this hole,but water cannot. This can be best explained by the statement that

Choose an answer

water contains hydrogen atoms, air does not

water molecules are smaller than molecules in the air

surface tension of the water prevents it from

The unit of spring constant is

Choose an answer

J-sec

Metre

Nm^-1

None of these

In a soft iron, domains are

Choose an answer

easily oriented along external field and do not return to original random positions

easily oriented along external field and readily returns to originally random position

do no oriented along external field and also do not returns to originally random position

none of them

A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when

Choose an answer

The coil is distorted

The coil is rotated

The coil is neither distorted nor rotated

Both A and B

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