Download Previous Year Diploma Paper of Auto Engine -II 4th Sem May 2016 Automobile Diploma Paper
Auto Engine -II 4th Sem May 2016 Automobile Diploma PSBTE Paper
                  SECTION-A
Q1. Fill in the blanks: – 1×10=10
a) Rotational flow of charge within the engine cylinder is called _________.
b) Time interval between start of fuel injection and its actual burning in C.I. engine is called ____________
c) Cetane no. gives the _____________ quality of diesel fuel.
d) The compression ratio in automobile diesel engine is usually _____________ .
e) Fuel feed pump in diesel engine is mounted on _______________ .
f) Diesel engine emits excessive smoke during ______________.
g) __________ is the process of increasing air fuel mixture density in the cylinder.
h) _________ engines involve rotary motion of piston.
i) Lower the __________ of diesel fuel; high temperature is required to ignite the fuel.
j) CRDI means ___________ .
                   SECTION-B
Q2. Attempt any five questions.                                  5×6=30
Q2. Short answer type. Attempt any FIVE: – 5×7=35
a) Explain the various types of combustion chambers for diesel engine.
b) Explain briefly diesel knock and cetane no.
c) What is supercharging? Describe working of turbocharger.
d) Describe briefly the working of hybrid vehicle.
e) Explain the working principle of 4-stroke diesel engine.
f) Describe briefly with neat sketch the working of fuel injector in diesel engine.
g) Discuss the main features of modern CRDI system.
h) Explain exhaust gas recirculation.
                   SECTION-C
Q3. Attempt any three questions.                            3×10=30
Q3. Long answer type. Attempt any TWO: – 15×2=30
a) Explain in detail the various stages of combustion in diesel engine.
b) Describe in detail the layout & working of individual pump fuel injection system in diesel engine.
c) Write short note on any three: –
(i) Crankcase ventilation.
(ii) Fuel cell.
(iii) Exhaust gas recirculation.
(iv) Wheel motor.
(v) Governors.
(vi) Squish and swirl.
Rotational flow of charge within the engine cylinder is called _______________ .
Time interval between start of fuel injection and its actual burning in C.I. engine is called ______
Cetane no. gives the _____________ quality of diesel fuel.
The compression ratio in automobile diesel engine is usually _____________ .
Fuel feed pump in diesel engine is mounted on _______________ .
Diesel engine emits excessive smoke during ______________.
 __________ is the process of increasing air fuel mixture density in the cylinder.
_________ engines involve rotary motion of piston.
Lower the __________ of diesel fuel; high temperature is required to ignite the fuel.
CRDI means ___________ .
Auto Engine -II 4th Sem May 2016 Automobile Diploma PSBTE Paper Click Here
Types of combustion chambers for diesel engine.
Diesel knock and cetane no.
Supercharging and working of turbocharger.
Working of hybrid vehicle.
Working principle of 4-stroke diesel engine.
Neat sketch the working of fuel injector in diesel engine.
Main features of modern CRDI system.
Exhaust gas recirculation.
Auto Engine -II 4th Sem May 2016 Automobile Diploma PSBTE Paper Click Here
Various stages of combustion in diesel engine.
Combustion chamber and types of combustion chambers of diesel engines.
Working of individual pump fuel injection system in diesel engine.
Crankcase ventilation.
Fuel cell.
Exhaust gas recirculation.
Wheel motor.
(vi) Squish and swirl.
Governors.
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