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 chemistry nature of things properties of materials grouping and classification of objects sorting materials into groups

You are provided with the following four materials as wood, plastic, wool and steel. Which of the given material will you identify as hardest and softest respectively?

  1. Wood and wool

  2. Plastic and steel

  3. Wool and steel

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

Materials which are difficult to compress are called hard and materials which are easy to compress are called soft.

Hard materials :Steel,wood,etc.
Soft materials :Wool,cotton etc.
Here steel >wood>wool [hardness]
So,steel is hardest and wool is soffest.

Multiple choice history the industrial age and change of life of people the britain 1750-1945 industrial revolution and social change the industrial revolution and social change (1750-1900 ce)

What did Abraham Darby use to make high-quality iron?

  1. Copper

  2. Limestone

  3. Coke

  4. Mica
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Abraham Darby I pioneered the use of coke (a fuel derived from coal) in blast furnaces to smelt iron, which was more efficient and produced higher-quality iron than charcoal.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

Clinkers can be used as aggregate: concrete and

  1. Road Materials

  2. Furnitures

  3. Farms

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

Clinkers are the stony residues from burnt coal or industrial furnaces. They are commonly used as aggregate in construction materials like concrete and for building road foundations.

Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is

  1. cotton

  2. coir

  3. wood

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

The material by and large utilized for sound sealing of rooms like chronicle studio, film lobby, assembly hall which assimilate sound and encourage in sealing is styrofoam. Earplugs are comprised of fine glass wool or cottonwood impregnated with wax while ear covers contain liquid seals or plastic froth for engrossing sound.

So, the correct option is 'styrofoam.'.

Multiple choice physics current electricity and magnetism electric bell the magnetic effect of a current electromagnetic forces oersted experiment oersted's experiment magnetic field due to a straight current carrying conductor

What material is used for making the armature of an electric bell ? Give a reason for using this material.

  1. Soft Iron

  2. Carbon

  3. Glass

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

Soft iron is used for making the armature of an electric bell because soft iron is magnetised easily on passing the current and completely demagnetised easily on withdrawing the current through the solenoid.

Multiple choice physics heat engine: second law of thermodynamics conversion of heat into work: heat engine and it's efficiency engines and cycles heat engines refrigerators and heat pumps

The earthen pots prepared by using clay only are generally

  1. Porous

  2. Non-porous

  3. Conductors of electricity

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

The earthen pots prepared by using clay only are generally porous to facilitate cooling process.This works through evaporative cooling. Capillary action causes water to seep and evaporate from the mini-pores in the pot, taking the heat from the water inside, thus making the water inside cooler than the outside temperature.

Multiple choice biology food and health adulteration of food food adulteration food and human health

Sand, grit, iron filings and chalk powder are the common adulterants of

  1. Soji

  2. Coffee powder

  3. Common salts

  4. Wheat flour
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Adulteration is a process of mixing undesirable and inferior materials in food. The material or substance which is added to food is called as adulterants. Adulterated food is impure, unsafe, or unwholesome food. In soji, sand, grit, iron filings, chalk powder are added as an adulterant.
Thus, the correct answer is option A.
Multiple choice physics friction increasing and reducing friction advantages and disadvantages of friction merits and demerits of friction and methods to reduce it

Powder is used in carrom board for

  1. Increasing friction

  2. Decreasing friction

  3. Decoration

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

Answer is B.

The surface well powdered to stay away from harm to board surface due to scratch.It reduces the friction and helps in smoothing of the board and thereby allows the carom coins to go through in that flow which helps in fast play.
Powder is used in carom board for decreasing friction.