Science General · Chemistry

Materials and Their Applications

2,794 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 physics heat and temperature anomalous expansion of water thermal expansion in solids, liquids and gases thermal expansion

Crucibles are made of mixture of quartz and silica since the linear coefficient of expansion is

  1. Zero for that mixture

  2. Infinity for that mixture

  3. Negative for that mixture

  4. Positive for that mixture
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Its thermal expansion is practically zero. Bricks of this type are used in the melter crown of the glass furnace as they provide good resistance to creep and good mechanical strength at the operating temperature.

Multiple choice chemistry substances in daily use polyester and acrylic rayon and nylon synthetic fibres

Why PET is increasingly used for making bottles, jars and utensils?

  1. It is light weight and very strong

  2. It is shatter proof

  3. Impact resistant

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

PET is light weight, naturally colourless with high transparency, strong and impact resistant. It is shatter proof. All these properties of PET makes a highly more suitable material than glass for making bottles, jars, utensils etc.

Multiple choice physics light and shadow substances which allow light to pass through and those which do not transparent, opaque and translucent objects shadows

Which of the following is a transparent?

  1. Gold

  2. Glass

  3. Stone

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

Objects which allow the light to pass through them completely without any obstruction are called $ \bf{transparent} $ objects.

Objects which allow the light to pass through them partially are called $ \bf{translucent} $ objects.

Objects which do not allow the light to pass through them are called $\bf{opaque} $ objects.

Glass is a $\bf{transparent} $ object because it allows light to pass through it completely and doesn't block any light. 
Gold and Stone, on the other hand, are $ \bf{opaque} $ objects. While, Plastic is $ \bf{translucent} $.

Hence, the correct answer is OPTION B. 

Multiple choice chemistry petrochemicals and polymers addition polymerisation types of polymerisation reactions polymer

Which is used in making various types of pipes?

  1. PVR

  2. PVC

  3. Bakelite

  4. Melamine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
PVC (polyvinyl chloride) is used in making various types of pipes.
Note: PVC thermoplastic polymer. Its properties are between elastomers and fibers. On heating, it becomes soft and on cooling, become hard. It can be remoulded and recycled.
Multiple choice nanochemistry nanotechnology applied chemistry materials chemistry

____________ nanotubes are used as strengthening rods and toughening elements in structural composite materials.

  1. Carbon

  2. Gold

  3. Silver

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

Carbon nanotubes are used as strengthening rods and toughening elements in structural composite materials. Example of a carbon nanotube is Fullerene nanotube.

Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

Which piece of laboratory equipment would be used to grind large crystals into a powder?

  1. Crucible

  2. Evaporating dish

  3. Tongs

  4. Erlenmeyer flask

  5. Mortar and pestle
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation
Mortar and pestle $\rightarrow$
It is used for grinding and crushing chemicals for assorted lab procedures. It has various sizes and made of porcelain with unglazed interiors.
Hence a piece of laboratory equipment would be used to grind large crystals into a powder is mortar and pestle.
Hence the required answer is (E) Mortar and pestle.
Multiple choice common laboratory equipments common laboratory apparatus and equipments laboratory equipments know about some common gases chemistry

What are the uses of glass tube?

  1. Laboratory glassware

  2. Lighting application

  3. Solar thermal system and pharmaceutical packaging

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Glass tubes or glass tubing are hollow pieces of various glass types (like borosilicate, flint, aluminosilicate, soda lime, lead or quartz glass) with a large variety of applications which are laboratory glassware, lighting applications, solar thermal systems and pharmaceutical packaging.