ENGINEERING CHEMISTRY MIQs

 

UNIT 1

Ques: Explain molecular self-assembly method for preparing the nanomaterials.

Ques : Draw the molecular energy level diagram for CO. Calculate its bond order and

explain its magnetic behavior.

Ques:  On the basis of MO theory calculate the bond order of NO. Will NO be

paramagnetic or diamagnetic?

Ques: Draw molecular orbital diagram of O² and NO. Calculate their bond order and comment on their magnetic behaviors.

Ques: Classify Liquid crystals on the basis of temperature and give their applications in various fields.

Ques:  Describe different types of liquid crystals. Discuss the applications of Liquid

crystals

Ques:  Discuss the classification of liquid crystals. Distinguish between nematic and smectic liquid crystals. Give their important applications.

Ques: Write a brief note on fullerenes, discussing their preparation, properties and

applications.

Ques: Describe the structure and applications of Graphite and Fullerenes. Explain the

reasons for electrical and lubricating properties of graphite.

Ques: What are nanomaterials? How the physical and chemical properties of nanoparticles vary with their size? Write important applications of nanomaterials.

Ques: What are Carbon Nano Tubes? Discuss the applications of nanomaterials.

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Ques: Ilustrate any five principles of Green Chemistry and the give green synthesis method for prparation of Paracetamol.

UNIT 2

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UNIT 3

Ques: Briefly explain wet corrosion. How Corrosion can be prevented by Metallic coating and using corrosion inhibitors? View

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UNIT 4

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UNIT 5

Ques : What are biodegradable polymers? Write a note on 

(i) Polynucleotides

(ii) Buna- S

Ques:  Differentiate between Thermoplastic and Thermosetting polymers. Discuss the

preparation and uses of Phenol Formaldehyde resin.

Ques: Discuss the preparation and uses of Nylon- 6,6.

Ques: Give the structures of FOUR compounds used as initiators in Free Radical

polymerization.

Ques: Discuss the preparation and uses of PTFE.

Ques:(i) Differentiate between Chain Growth and Step Growth polymerization.

(ii)Outline the process of vulcanization of rubber. Describe the preparation, important properties and uses of Butyl rubber or Kevlar.

Ques:(i) Differentiate between Thermosetting and Thermoplastic polymers.

(ii)Giving examples write a brief note on conducting polymers.

Ques: Write the preparation (structure of monomer and polymer), properties & applications of the polymers: (i) Buna-S (ii) Nylon 6,6 (iii) Polyester (iv) Kevlar (v) Bakelite 

Ques: Classify conducting polymers and mention their important applications.

Ques: What do you understand by Polymer Blends? 

coming soon......

FUNDAMENTALS OF ELECTRONICS ENGINEERING MIQs

                                    FUNDAMENTALS 

                    OF ELECTRONICS ENGINEERING 

UNIT 1

Ques : Compare between Avalanche breakdown and Zener breakdown.

Ques: Explain the difference between the P-N junction diode and Light- Emitting diode.

Ques: Define the static and dynamic resistance of the diode. Also differentiate between Transition and Diffusion capacitance.

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Ques: What do you mean by Varactor diode? Write its one application.

Ques: Why is Varactor diode also called Varicap? Explain.

Ques:  Explain the working of p-n junction diode and draw its V-I Characteristics

Ques: (i) Draw the circuit diagram of voltage Tripler circuit?

(ii) Explain Zener diode as a voltage regulator.

Ques: Explain the working of following with the help of suitable diagram.

(i) LED

(ii) Photodiodes

Ques: Draw and explain the working of Centre Taped full wave rectifier. Also calculate its efficiency and ripple factor.

UNIT 2

Ques: Explain working principle of Depletion type MOSFET (n-channel). Draw &

Explain its characteristics.

Ques: Draw and explain the construction and working of P- channel Depletion MOSFET with characteristics graphs.

Ques: Draw the circuit of NPN transistor in common base configuration and discuss

its working. Draw input-output characteristic.

Ques: Draw and explain the working of the PNP Transistor in common base (CB) configuration with its characteristics graphs.

Ques: Draw and explain the construction and working of N- channel JFET with characteristics graphs.

UNIT 3

UNIT 4

UNIT 5

Ques: Describe AM modulator with adequate diagram.

Ques: Explain the elements of communication system with the help of block

diagram.

Ques: Define the various elements of communication system and also draw it’s

functional block diagram.

Ques: Write Short notes on (i) Amplitude Modulation technique (ii) Radar Communication.

Ques: In an amplitude - modulated wave, derive the expression for 

(i) Amplitude of sidebands

(ii) Sideband frequencies

(iii) Modulation Index

(iv) Modulation Efficiency

Ques: Explain the need of modulation in the communication system.

Ques: Write the two applications of satellite communication.

coming soon....