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Auto Engine-II 4th Sem May 2017 Automobile Diploma Paper

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Auto Engine -II 4th Sem May 2017 Automobile Diploma PSBTE Paper

                                  SECTION-A

Q1. Fill In The Blanks. 1×15=15
a) Normal heptane’s octane number is _____________
b) Wankel rotary engine are of very __________ speed
c) The internal combustion engines are popularly known as _________ engines.
d) A heat engine is a device which converts __________ energy into mechanical energy.
e) Of all the three phases of combustion process in a C.I engine, the __________ phase is the most important.
f) ____________ is done for increasing the volumetric efficiency of diesel engine.
g) It is observed that too rich or too lean mixtures are difficult to ______________
h) The ratio of actual mass of air to the theoretical mass of air in a diesel engine is called ____________ efficiency.
i) Iso-octane is arbitrarily rated ____________ Octane number.
j) The efficiency of a 4 stroke engine is _____________ than that of a 2 stroke engine.
k) A turbo charger is driven by the ____________ energy of the engine.
l) The diesel engine is manually started by using a _______________
m) Exhaust smoke level _______________ drastically at full load of CI engine.
n) An __________ is a device which converts one form of energy into another.
o) The _____________ of the fuel is the determining factor in the C.I engine.

                                  SECTION-B

Q2. Attempt any six Questions. 5×6=30
I. Discuss briefly working of Pneumatic governor.
II. Discuss briefly the soureces of exhaust pollutants in IC engines.
III. Differentiate between two stroke and four stroke engines.
IV. What are the methods of ignition in an IC engine? What is a stirling Engine?
V. Draw comparison between the air coolong system and the water cooling system of IC engines.
VI. Discuss briefly the types of nozzles used in diesel engines.
VII. What is carburetion? What are the factors that affect the process of carburetion?
VIII. Explain briefly the working of wankel engine.e

                                   SECTION-C

Q3. Attempt any two Questions. 15×2=30
i. What is combustion chamber? Discuss the types of combustion chambers of diesel engines.
ii. Write notes on the following: catalytic converter, wheel motors.
iii. Explain the construction and working of plunger type fuel injection pump in diesel engines with neat sketch.

Normal heptane’s octane number is _____________

Wankel rotary engine are of very __________ speed

The internal combustion engines are popularly known as _________ engines.

A heat engine is a device which converts __________ energy into mechanical energy.

Of all the three phases of combustion process in a C.I engine, the __________ phase is the most important.

____________ is done for increasing the volumetric efficiency of diesel engine.

It is observed that too rich or too lean mixtures are difficult to ______________

The ratio of actual mass of air to the theoretical mass of air in a diesel engine is called ____________ efficiency.

 Iso-octane is arbitrarily rated ____________ Octane number.

The efficiency of a 4 stroke engine is _____________ than that of a 2 stroke engine.

A turbo charger is driven by the ____________ energy of the engine.

 The diesel engine is manually started by using a _______________

Exhaust smoke level _______________ drastically at full load of CI engine.

Related Post

An __________ is a device which converts one form of energy into another.

The _____________ of the fuel is the determining factor in the C.I engine.

Auto Engine -II 4th Sem May 2017 Automobile Diploma PSBTE Paper Click Here

Working of Pneumatic governor.

Soureces of exhaust pollutants in IC engines.

Differentiate between two stroke and four stroke engines.

Methods of ignition in an IC engine

stirling Engine.

Comparison between the air coolong system and water cooling system of IC engines.

Types of nozzles used in diesel engines.

Carburetion and Factors that affect the process of carburetion.

Auto Engine -II 4th Sem May 2017 Automobile Diploma PSBTE Paper Click Here

Auto Engine -II 4th Sem May 2017 Auto mobile Diploma PSBTE Paper

Combustion chamber and  types of combustion chambers of diesel engines.

Construction and working of plunger type fuel injection pump in diesel engines.

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