Solved question paper for CHEM Dec-2016 (DIPLOMA 1st-2nd)

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Chemistry Dec-2016

PSBTE • DIPLOMA • Computer Engineering • 1st-2nd • Dec-2016

CHEM (chemistry) for Punjab State Board of Technical Education Diploma in Engineering 1st-2nd semester students is collected here as subject-wise previous year question papers and old papers for quick revision. Students can use these PYQ papers to understand the exam pattern, check repeated questions, and prepare important topics in a simple, semester-wise way. This page helps you find and download diploma question paper PDFs for CHEM and review common unit-wise questions before exams. BRpaper is not the official website of the Punjab State Board of Technical Education, and the papers here are meant for study reference and exam preparation only.

Question papers (year-wise) Solutions

Solved Questions

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SECTION –A

Q.1 Fill in the blanks

a. Slow but continuous eating away of the metal by the chemical action with surrounding is called _________.

Very Short Answer 1x10=10 Marks Dec-2016 • PSBTE DIPLOMA

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Coating of iron with zinc by hot dipping method is called ..............

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 Coating of iron with zinc by hot dipping method is called _________.
Slag is a product of ......... and ........... .

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Brass is manily a mixture of ................ and ................... metal.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Producer gas is mixture of ............ and .................... .

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2018 Producer gas is a mixture of CO and _______.

Dec 2018 Producer gas is a mixture of CO and _______

May 2017
Producer gas is a mixture of ______.

May 2016
Producer gas is a mixture of CO & _____________.

May 2015 Producer gas is a mixture of _________ and ___________.
Carbon monoxide is ............. toxic than CO2.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2016
Carbon monoxide is ___________ toxic than CO2
The unit of heat is ............ .

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 Unit of heat is _________.

May 2015 The unit of heat is _________.
Acid refractories are resistant to ..............

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2018
Acid Refractoriness are resistant to ………........

Pigment varnish is called ..............

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2015 Pigment varnish is called _________.

Dec 2011 Pigmented varnish is called ________
PAN means .......... .

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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2 State True or False

a. All ores are minerals.

Very Short Answer 1x5=5 Marks Dec-2016 • PSBTE DIPLOMA

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Brass is ferrous alloy.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Ultra mine is a white pigment.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Nylon66 is a copolymer.

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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Scale formation in boiler cause wastage of fuel

Very Short Answer Dec-2016 • PSBTE DIPLOMA

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SECTION B

Q.3 Note: Attempt Any Six question

a. Explain Roasting and calcination?

Short Answer 6x5=30 Marks Dec-2016 • PSBTE DIPLOMA

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Explain electromagnetic separation process for the concentration of ores?

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2021 Explain electromagnetic separation for concentration of ores.

May 2019 Explain electromagnetic separation process for concentration of ores.
Define fire point, viscosity , viscosity index, pour point and cloud point of oil?

Short Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2017
Define fire point, flash point, viscosity, viscosity index, cloud point and pour point.

Dec 2011 Define fire point, flash point, viscosity and viscosity index (VI), pour point and cloud point of oil.
Comparison of chemical and electro-chemical corrosion?

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2018
Explain the term galvanic corrosion?

Dec 2017
Explain electro chemical theory of corrosion.

May 2015 Explain stress corrosion and high temperature corrosion.

Dec 2015 Explain stress corrosion.
What is fuel? What are the characteristic of good fuel?

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2020 What are the characteristics of a good fuel?

May 2019 What are characteristics of a good fuel?

May 2019 What are the characteristics of a good fuel?

Dec 2018 What are the characteristics of a good fuel?

Dec 2018 What are the characteristics of a good fuel?

Dec 2017
What are fuels? Give the characteristics of good fuel.

Dec 2015 What are the characteristics of a good fuel?

Dec 2011 What are the characteristics of a good fuel?

Differentiate between thermoplastic and thermosetting plastic with example?

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2019 Distinguish between thermoplastics and thermosetting plastics.

May 2019 Differentiate between thermoplastics and thermosetting plastics.

Dec 2018 What is the difference between thermoplastic and thermosetting polymers?

Dec 2018 What is the difference between thermoplastic and thermosetting polymers?

May 2017
Differentiate between thermoplastics and thermosetting plastics.

Dec 2017
Difference between thermoplastic and thermosetting plastics?

May 2016
Differentiate between thermoplastics and thermosetting plastics.

May 2015 Differentiate between thermoplastics and thermosetting plastics with example.

Dec 2011 Differentiate between thermoplastics and thermosetting plastics.
What are refracteries? What are the characteristic of good refracteries?

Short Answer Dec-2016 • PSBTE DIPLOMA

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What is water Pollution? Give the sources of water pollution?

Short Answer Dec-2016 • PSBTE DIPLOMA

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May 2020 What are the sources of water pollution?

May 2016
What is air pollution? Give the sources of water pollution.

Dec 2015 What is water pollution?

Dec 2015 Give the sources of water pollution.

Dec 2011 Give three main causes of water pollution.
SECTION -C

Q.4 Attempt any Five questions:

i. Differentiate between addition polymer and condensation polymer?

Long Answer 5x6=30 Marks Dec-2016 • PSBTE DIPLOMA

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Define the term lubricant? What are the function of lubricant?

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2021 What are the characteristics of a good lubricant?

May 2021
What are the functions of a lubricant?

May 2020 What are the functions of lubricants?

May 2019 What are the functions of a lubricant?

May 2019 What are the functions of a lubricant?

Dec 2018 What are the characteristics of a good lubricant?

Dec 2018 What are the characteristics of a good lubricant?

Dec 2017
What are functions of lubricants?

Dec 2017
What are lubricants? How are they classified?

May 2015 What are the characteristics of a good lubricant?

May 2015 What are lubricants?

Dec 2015 What are the functions of lubricants?
What is biogas? Give its composition and uses?

Long Answer Dec-2016 • PSBTE DIPLOMA

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Dec 2018 How is biogas produced?

Dec 2018 How is biogas produced? Name its main constituents.

May 2015 What are the constituents of biogas and oil gas? Give their uses.
Distinguish between octane number and cetane number?

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2017
Distinguish between octane number and cetane number.
A sample of coal contains 60% carbon, 33% oxygen, 6% hydrogen, 0.5% sulphur, 0.3% nitrogen and 0.2% ash. Calculate gross calorific value of coal?

Long Answer Dec-2016 • PSBTE DIPLOMA

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What are the theories of corrosion? Describe briefly the acid theory?

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 What are theories of corrosion?
What is acid rain? What are its harmful effects?

Long Answer Dec-2016 • PSBTE DIPLOMA

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May 2015 What is acid rain?

Dec 2015 Explain acid rain.
Explain.

i) Zone Refining process

ii) Froth floatation process

Long Answer Dec-2016 • PSBTE DIPLOMA

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FAQ

Frequently Asked Questions

Answers about this subject, solved papers, and preparation.

Updated regularly

01 Where can I find CHEM previous year question papers for PSBTE Diploma?

You can use this CHEM subject page to find subject-wise previous year question papers for the PSBTE Diploma in Engineering 1st-2nd semester.

02 Can I download CHEM diploma question paper PDF from this page?

This page is meant to help students locate CHEM question paper PDFs and old papers for study and revision.

03 Are solved CHEM question papers available here?

Students often search for solved papers, but this page is mainly for previous year question papers and exam preparation material.

04 How do CHEM old papers help in exam preparation?

Old CHEM papers help you understand the exam pattern, spot repeated questions, and revise important units before the exam.

05 Is BRpaper the official website of Punjab State Board of Technical Education?

No. BRpaper is not the official website of Punjab State Board of Technical Education; it is a study reference page for question papers.

Solved question paper for CHEM Dec-2016 (DIPLOMA 1st-2nd)

Chemistry Dec-2016

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