1.
Explain with the help of p-v diagram, diagram how
actual cycle differs form theoretical cycle in SI engine ?
2.
sketch and explain the actual valve timing diagram for
tow-stroke cycle and four-stroke cycle CI engine ?
3.
derive an expression for the air standard efficiency of Otto cycle. Show that the
efficiency of cycle is lower that of Carnot cycle?
4.
explain the constant pressure cycle and where it used.
Derive an expression for thermal efficiency of constant pressure cycle.
5.
define the follwing efficiencies –
(i)
indicated thermal efficiencies
(ii)
Brake thermal efficiency
(iii)
Volumetric efficiency
(iv)
Relative efficiency
(v)
Mechanical efficiency.
6.
write short note on-Multifuel engines and their
performance.
7.
Explain the stages of combustion on the SI engine the
Help of a P diagram.
8.
discuss the effect of the following engine variables on
flame propagation
(i)
compressin ratio (ii) Fuel-air ratio
(ii)
Turbulence (iv)
engine load
(Vi) engine speed
9.
explain the phenomena of detonation in SI engine. Also
explain in brief the factors affecting detonation.
10.
what do you mean by octane number and cetane Number of
fuels? How are the determined?
11.
discuss the desirable characteristics of combustion
chamber design for spark ignition engines.
12.
discuss salient features of various types of combustion
chanbers.
13.
with the help of pressure vs crank angle diagram
explain the different stage of combustion in CL engine.
14.
what is meant by delay ?Discuss the variables affecting
the delay period.
15.
what do you understand by knock inhibitors?
16.
explain swirl and squish phenomenon ?
17.
Write short note
on Design of combustion chamber for CI engine?
18.
Explain the various lubrication systems bringing out
their functions.
19.
Explain with the help of a neat diagram the principle
of working of a rotary IC engine .
20.
Write short note on – battery ignition system .
21.
what are the different types of fuel ignition system? Explain
in brief.
22.
Discuss different types of cooling systems of I.C.
engines.
23.
write short note on Forced circulation cooling.
24.
explain the scavenging process in internal combustion engine What is meant by blow down ?
25.
write short note on Lubrication of I.C. engines.
26.
write short note on desirable properties of good
lubricants.
27.
write short note on – theory of carburetion.
28.
write short note on-solex carburetor.
29.
explain with a neat diagram the principle,construction
,and working of MPFI.
30.
explain methods on fuel injection in C.I engine.
31.
write short note on –alternative fuels for I.C engine
32.
write short note on-air pollution on internal
combustion engine.
33.
what are causes of smoke from an engine.discuss the
method of controlling smoke.
34.
discuss help of diagram methods of supercharging.
35.
what is super charging and how it effect on
thefollowing parameters-power output,mechanical efficiency,fuel consumption.
36.
short note on-limit of supercharging for C.I engine.
37.
short note on-gas turbo charging.
38.
methods of turbo charging.its merits and de merits.
39.
discuss constant pressure turbocharging of an
engine.how is it done?its advantages and dis advantages.
40.
advantages of supercharging.discuss turbocharging of
two stroke engine.
