RRB ALP & Technician Practice Test - 2 - Railways MCQ

A straight rod partially immersed in water seems bent. Its reason is

An electro-magnet is made of

Only two elements are in liquid state at room temperature. They are

A stone was dropped freely in a river flowing down a bridge. The stone takes 2 seconds in touching the water surface. The height of the bridge is

1 micron is equal to

The most abundant gas found in earth’s atmosphere is

The Chemical formula of Caustic Soda is

Air cooler will be most effective in

A certain distance was covered at a certain speed. If half of the distance is covered in twice time, the ratio between new speed and original speed is

The number of electrons in Na+ is

The most electro negative element in the following is

Rh factor is related to

A force of 50N acts on a body and moves the body on a straight path to a distance of 4 metres. Find the work done if the force acts at an angle of 60 with horizontal.

The length of pendulum is reduced to one fourth. Its time period will be

An element which changes the rate of a chemical reaction but does not undergo any change in itself, is called

At constant temperature the volume of a given mass of a gas is inversely proportional to the pressure. It is known as

The resistance of an electric circuit/ implement is measured by

Solenoid is a

At a uniform accleration which of the motion equations is correct

A body starts from rest at an acceleration of 2m/sec*2. The distance covered by the body in 2 seconds is

The c.g.s. unit of density is

When a body is partially of fully immersed in a liquid it experiences a loss in its weight that is equal to the weight of liquid displaced by its immersed part. This principle is of

The unit of force in cgs unit is

Humidity in the atmosphere is measured by

Density of pure water at 4°C is

Momentum, mass and velocity are related as

1 second is ...... part of a mean solar day.