Science General · Chemistry

Materials and Their Applications

2,856 Questions

Materials and Their Applications questions examine the properties and uses of raw materials like ceramics, cement, clay, and glass. This topic is a core component of general science in SSC, railways, and technical exams. Review these questions to master the practical applications of various compounds.

Ceramic insulatorsCement raw materialsSculpting and pottery clayGlassblowing materialsSustainable construction materials

Materials and Their Applications Questions

Multiple choice

The diaphragms of telephone are made up of

  1. Soft irons

  2. Magnet

  3. Thin sheet of any metal

  4. Steel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The telephone diaphragm is made of soft iron because it is a ferromagnetic material that can easily respond to the fluctuating magnetic fields generated by the voice coil.

Multiple choice

The roller of cane-crusher is made-up of which steel?

  1. Cast iron

  2. Gun metal

  3. High carbon steel

  4. Wrought iron
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The rollers of a cane crusher are subjected to high pressure and wear, requiring a material that is hard and durable. Cast iron is commonly used for these rollers due to its hardness and ability to withstand the crushing forces.

Multiple choice

Which of the following is more elastic?

  1. Rubber

  2. Glass

  3. Brass

  4. Steel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Elasticity is defined by the ability of a material to return to its original shape after the deforming force is removed. Steel is more elastic than rubber because it requires a much greater force to produce the same amount of strain.

Multiple choice

Which of the following is an element?

  1. Silica

  2. Magnesia

  3. Glass

  4. Graphite
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Graphite is a pure form of carbon, which is a chemical element. Silica, magnesia, and glass are compounds or mixtures.

Multiple choice

Which of the following options is most elastic?

  1. Steel

  2. Rubber

  3. Silver

  4. Glass
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Elasticity is the ability of a material to return to its original shape after a deforming force is removed. Among the choices, rubber is well known for its high elastic limit and ability to undergo significant reversible deformation.

Multiple choice

The choice of glass for spectacles should be

  1. flint glass

  2. crown glass

  3. plain glass

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Crown glass is commonly used for spectacle lenses because it has good optical clarity and is relatively durable.

Multiple choice

Glass is made of the mixture of

  1. sand and silicate

  2. sand and salt

  3. quartz and mica

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Glass is primarily manufactured by melting a mixture of silica (sand), soda ash, and limestone. Among the choices, sand and silicate represent the primary components.

Multiple choice

If a worker miss-hit a masonry nail, it tends to break into two bits because of its great and increased brittleness. Which of the following is usedto make a masonry nail?

  1. Stainless steel

  2. Cast iron

  3. Mild steel

  4. Wrought iron

  5. High carbon steel
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It contains up to 1.5% carbon. Increases the carbon content makes the iron harder, but more brittle thus it is used for cutting tools and masonry nails. Masonry nails are designed to be hammered into concrete blocks and if a worker miss hit a masonry nail, it tends to break into two bits because of its increased brittleness.

Multiple choice

Which of the following materials are non-lustrous?

  1. Iron and copper

  2. Diamond and silver

  3. Wood and coal

  4. Glass and steel
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lustrous means shiny. Iron, copper and silver are metals and all metals have shiny surface. Diamond, glass and steel are also shiny. Wood and coal are the substances which appear dull and non lustrous.