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Auto Engine-II 4th Sem May 2015 Automobile Diploma Paper

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Auto Engine -II 4th Sem May 2015 Automobile Diploma PSBTE Paper

                                                SECTION-A

Q1. Attempt any ten parts:                                                                   10×1.5=15

(a) What are the limitations of wankel engine?
(b) Name the catalytic used in catalytic converters.
(c) What is calibration?
(d) How nozzle is cooled and lubricated in injector?
(e) How turbochargers are driven out in IC engines?
(f) How fuels are rated in CI engines?
(g) What are the various methods of emission control in internal combustion engines?
(h) Write the firing order of six cylinder engine?
(i) Name the types of fuel injection methods.
(j) Why helix is made in plunger of a fuel injection pump?
(k) What is a unit injector?
(l) What is ignition delay period?

                                      SECTION-B

Q2. Attempt any five questions.                                                                    5×6=30

a) Discuss briefly the types of nozzles used in diesel engines.
b) Discuss the different phases of combustion in a C.I.engine.
c) What are effects of different pollutants on human life?
d) Explain briefly the working of a catalytic converter in engines.
e) What is the effect of atmospheric pressure and attitude on the performance of the engine?
f) List the specialized types of engines. Explain briefly any one.
g) Explain briefly working of wankel engine

                                     SECTION-C

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

a) Explain the construction & working of fuel injector in diesel engines with neat sketch..
b) What is combustion chamber? Discuss the types of combustion chambers of diesel engines.
c) What is the purpose of governor in diesel engines? Explain with neat sketch pneumatic type governor.
d) (a) Discuss briefly the working of exhaust gas recirculation(EGR).
e) (b) What do you understand by diesel knock? What are the factors cause diesel knock and how it is controlled.

Auto Engine -II 4th Sem May 2015 Auto
mobile Diploma PSBTE Paper


Get Started

https://www.youtube.com/watch?v=y_wJffQkeWo&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=6&t=0shttps://www.youtube.com/watch?v=mV41CMWonN4&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=7&t=0shttps://www.youtube.com/watch?v=M_RR6LVICp0&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=20&t=0shttps://www.youtube.com/watch?v=3BNQLUnbNpYhttps://www.youtube.com/watch?v=ZDkyNOzoG8A&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=8&t=0shttps://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section :- Auto Engine -II 4th Sem May 2015 Automobile Paper

What are the limitations of wankel engine?

Limitations of wankel engine.

Name the catalytic used in catalytic converters.

Catalytic used in catalytic converters.

 What is calibration?

Calibration.

How nozzle is cooled and lubricated in injector?

How turbochargers are driven out in IC engines?

How fuels are rated in CI engines?

What are the various methods of emission control in internal combustion engines?

Methods of emission control in internal combustion engines.

Write the firing order of six cylinder engine?

Firing order of six cylinder engine.

Name the types of fuel injection methods.

Types of fuel injection methods.

 Why helix is made in plunger of a fuel injection pump?

What is a unit injector?

Unit injector.

What is ignition delay period?

Ignition delay period.

Auto Engine -II 4th Sem May 2015 Automobile Diploma PSBTE Paper Click Here

Section B :Auto Engine -II 4th Sem May 2015 Automobile PAPER

Discuss briefly the types of nozzles used in diesel engines.

Types of nozzles used in diesel engines.

Discuss the different phases of combustion in a C.I.engine.

Different phases of combustion in a C.I.engine.

What are effects of different pollutants on human life?

Effects of different pollutants on human life.

Explain briefly the working of a catalytic converter in engines.

Working of a catalytic converter in engines.

What is the effect of atmospheric pressure and attitude on the performance of the engine?

Effect of atmospheric pressure and attitude on the performance of the engine.

List the specialized types of engines. Explain briefly any one.

Specialized types of engines. 

Explain briefly working of wankel engine.

Working of wankel engine.

Auto Engine -II 4th Sem May 2015 Automobile Diploma PSBTE Paper Click Here

Auto Engine -II 4th Sem May 2015 Auto
mobile Diploma PSBTE Paper


Get Started

https://www.youtube.com/watch?v=UHX6f8TIvX8https://www.youtube.com/watch?v=M_RR6LVICp0https://www.youtube.com/watch?v=mV41CMWonN4https://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section c :-Auto Engine -II 4th Sem May 2015 Automobile PAPER

Explain the construction & working of fuel injector in diesel engines with neat sketch.

Construction & working of fuel injector in diesel engines.

What is combustion chamber? Discuss the types of combustion chambers of diesel engines.

Combustion chamber and types of combustion chambers of diesel engines.

What is the purpose of governor in diesel engines? Explain with neat sketch pneumatic type governor.

Purpose of governor in diesel engines

Pneumatic type governor.

Discuss briefly the working of exhaust gas recirculation(EGR).

Working of exhaust gas recirculation(EGR).

What do you understand by diesel knock? What are the factors cause diesel knock and how it is controlled.

Diesel knock and Factors cause diesel knock and how it is controlled.

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