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What term is used to describe a polymer that has rubber like properties?

Elastomer

Plastics

Copolymers

Polymers

Galvanized steel are steel product coated with

Zinc

Iron

Silicon

Boron

Sublimation is direct change from

Liquid to gas phase

Solid to gaseous phase

Gas to liquid phase

Liquid to solid phase

It is the attraction between like molecules

Adhesion

Cohesion

Reduction

Conduction

How are elements numbered 58 to 71 in the periodic table called?

Magnets

Lanthanons

Halogens

Metals

What field of study encompasses the procurement and production of metals?

Metallurgy

Alloy

Energy

Duellurgy

What is the opposite of alkali?

Acid

Fluid

Carbon

Oxide

Direct current (DC) is defined as

Electrical current that reverses direction periodically

Electrical current that flow in one direction only

Electrical current that flow in negative cycles only

If a system neither exchanges mass nor energy with the surroundings, it is known as

Segregated system

Semi closed system

Closed system

Isolated system

If a magnet is broken into two pieces, each piece processes two poles. The strength of the new poles is ___________ as the poles of the original magnet.

Same

One half

Double

Triple

When a dielectric is inserted into the gap of a capacitor, the capacitance always

Decrease

Remain same

Increase

Goes to zero

Which one of the following phenomena does not affect the direction of wave light?

Dispersion

Diffraction

Polarization

Refraction

A perfect or an ideal fluid is one that is

A real fluid

Which obeys perfect gas laws

Compressive and gaseous

Incompressible and frictionless

A DC series motor should not be run at no load, because it will

Draw a dangerously large current

Stall

Run at a dangerously high speed

Draw a dangerously high current and run at a dangerously high speed

Analog system are different from digital systems because they

Use transistors

Handle information analog form

Handle information in digital form

Are slow

In which one of the following gates the output is 1, if and only if at least one input is 1?

NOR

AND

NAND

The variables which can be accessed by all modules in a program are called

Local variables

Internal variables

External variables

Global variables

The path traced by the particle which thrown at an angle ‘Ɵ’ with respect to horizontal is

Straight line

Parabola

Triangle

Ellipse

Frictional force depends on the

Type of two surfaces in contact and normal reaction

Material strength of the surfaces in contact

Area of contact of the two surfaces

Fracture toughness of the two materials is contact

The material in which spontaneous polarization changes with temperature is known as

Piezo electric

Ferro electric

Pyro electric

Magneto optic

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