Nov 2018

APPLIED CHEMISTRY-II 2ND SEM EXAM /2254/NOV 2018 PAPER SECTION-A

Q1.Fill in the Blanks. 15×1=15

Flux + gangue = Slag
Producer gas is a mixture of CO and H2 or Hydrogen Gas
Viscosity of a lubricant Decrease with increase in temperature
A good lubricant should have High boiling point.
Annealing is the process to make steel Soft in nature.
Less Value of the pH, greater is the corrosion.
Pyrex glass is used in making laboratory.
Silica is a type of Acidic refractory.
Nylon-66 is an example of Copolymer.
The monomer unit of PVC is Vinyl Chloride.
Units of viscosity are Poise.
A good fuel has High calorific Value.
Methane is the major component of natural gas.

SECTION-B

Q2. Attempt any ten questions. 10×3=30

How is biogas produced? Name its main
What are composite materials? Give an Example.
Give applications of solid lubricants. Also give an example.
What is the purpose of making alloys?
Explain flash point and fire point of a lubricant
What is the difference between thermoplastic and thermosetting polymers?
Give one use of a) soda lime glass b) flint glass c) borosilicate.
Define polymerization and degree of polymerization.
What is the difference between erosion and corrosion
Define calorific value of a fuel. Which variety of coal has the highest calorific value?
What are the advantages of gaseous fuels
What are the characteristics of a good refractory material?
Name the various constituents of paint.
Define the term galvanization.
Explain greenhouse effect.

SECTION-C

Q3. Attempt any three questions. 3×10=30

Q3. a) Define: i) metallurgy ii) mineral iii) ore iv) gangue v) flux

b) Give composition and uses of i) brass ii) bronze

Q4. a) Explain the heat treatment methods to prevent corrosion of metals.

b) Explain the process of cementation.

Q5. a)What are the characteristics of a good fuel?

b) Give composition and uses of a) water gas b) producer gas

c) What are anti knock compounds? Give two examples.

Q6. a) What are refractories? Explain its types with examples.

b) What is enamel? What are the constituents and applications of enamels?

Q7. a) Explain addition and condensation polymers with examples.

b) What are the characteristics of a good lubricant?

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APPLIED CHEMISTRY-II
2nd Exam/Common/
2254/Nov 2018 PAPER sOLUTION

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SECTION A :-APPLIED CHEMISTRY-II
2nd Exam/Common/
2254/Nov 2018 PAPER

Flux + Gangue =

Flux + Gangue = Slag

Producer gas is a mixture of CO and _________.

Producer gas is a mixture of CO and H2 or Hydrogen Gas

Viscosity of a lubricant ________ with increase in temperature.

Viscosity of a lubricant Decrease with increase in temperature

A good lubricant should have _________ boiling point.

A good lubricant should have High boiling point.

Annealing is the process to make steel _______ in nature.

Annealing is the process to make steel Soft in nature.

_________ the pH, greater is the corrosion.

Less Value of the pH, greater is the corrosion.

________ glass is used in making laboratory.

Pyrex glass is used in making laboratory.

Silica is a type of _____________.

Silica is a type of Acidic refractory.

Nylon-66 is an example of __________.

Nylon-66 is an example of Copolymer.

The monomer unit of PVC is

The monomer unit of PVC is Vinyl Chloride.

Units of viscosity are ______

Units of viscosity are Poise.

A good fuel has _______ calorific Value.

A good fuel has High calorific Value.

_______ is the major component of natural gas.

Methane is the major component of natural gas.

APPLIED CHEMISTRY-II 2nd Exam/Common/2254/Nov 2018 PAPER SOLUTION Click Here

APPLIED CHEMISTRY-II
2nd Exam/Common/
2254/Nov 2018 PAPER

How is Biogas produced? Name its main Constituent.

How is Biogas produced

What are composite materials? Give an Example.

composite materials

Give applications of solid lubricants. Also give an example.

Applications of solid lubricants.

What is the purpose of making alloys?

Purpose of making alloys

Explain flash point and fire point of a lubricant ?

Flash point and fire point of a lubricant.

What is the difference between thermoplastic and thermosetting polymers?

Difference between thermoplastic and thermosetting polymers

Give one use of a) soda lime glass b) flint glass c) borosilicate.

use of a) soda lime glass

b) flint glass

c) borosilicate.

Define polymerization and degree of polymerization.

Polymerization

Degree of polymerization.

What is the difference between erosion and corrosion

Difference between erosion and corrosion.

Define calorific value of a fuel. Which variety of coal has the highest calorific value?

Calorific value of a fuel.

What are the advantages of gaseous fuels ?

Advantages of gaseous fuels

What are the characteristics of a good refractory matWhat are the characteristics of a good refractory material ?erial ?

Characteristics of a good refractory material

Name the various constituents of paint.

Define the term galvanization.

Galvanization.

Explain greenhouse effect.

Greenhouse effect.

APPLIED CHEMISTRY-II 2nd Exam/Common/2254/Nov 2018 PAPER SOLUTION Click Here

APPLIED CHEMISTRY-II
2nd Exam/Common/
2254/Nov 2018 PAPER sOLUTION

Get Started

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