RTU 2016 Question Paper Semester IV Automobile Engineering I.C. Engines
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RTU 2016 Question Paper Semester IV Automobile Engineering I.C. Engines – Text
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📄 View text version (3 pages)
Page 1
f r,Ir] ]-*' it
rn 4F+L45
+
d B.Tech.IV.Sem(Main&Back)ExamlJune.July20|6
+
frl
Automobile Engineering
4AE6A I. C. Engines
+ AE, ME
Maximum Marks: E0
Time: 3 Hours
Min. Passing Marks (Main & Back): 26
Min. Passing Marks (Old Back): 24
Instructions to Candidates : -
questions, selecting one question ftom euch unit'
All
Attempt any five -equal
Questions carry marks. schematic diagrams must be shown
be assumed and
wherever necessary. Any data you feel missing suitably
stated clearlY.
{Jnrts of quantities used/ calculated must be stated
clearly.
use of following supporting material is permitted
during examination'
Q.lAFourStrokepetrolenginehavingfollowingspecificationsNo'of
=2250 speed r'p'm'' brake
cylinder = 4, Bore = 110mm, stroke = 130mm, engine
diameter = 75mm'
power 36kw, fuel consumption = 10.5kg/h, Air box orifice
=
t16l
Cq=0.6, Cv of fuel = 42,000 kjlkg.
pressure drop across the
During the performance test following data were observed:
orifice=4.|cmofwater,Atmospherictemperature=l5oCandpressure=1.0135bar.
Calculate:
(a) Brake thermal efficiencY
(b) Brake mean effectual Pressure
(c) Volumetric efficiencY.
Page 1 of3 [e760]
[4E414s]
rn 4F+L45
+
d B.Tech.IV.Sem(Main&Back)ExamlJune.July20|6
+
frl
Automobile Engineering
4AE6A I. C. Engines
+ AE, ME
Maximum Marks: E0
Time: 3 Hours
Min. Passing Marks (Main & Back): 26
Min. Passing Marks (Old Back): 24
Instructions to Candidates : -
questions, selecting one question ftom euch unit'
All
Attempt any five -equal
Questions carry marks. schematic diagrams must be shown
be assumed and
wherever necessary. Any data you feel missing suitably
stated clearlY.
{Jnrts of quantities used/ calculated must be stated
clearly.
use of following supporting material is permitted
during examination'
Q.lAFourStrokepetrolenginehavingfollowingspecificationsNo'of
=2250 speed r'p'm'' brake
cylinder = 4, Bore = 110mm, stroke = 130mm, engine
diameter = 75mm'
power 36kw, fuel consumption = 10.5kg/h, Air box orifice
=
t16l
Cq=0.6, Cv of fuel = 42,000 kjlkg.
pressure drop across the
During the performance test following data were observed:
orifice=4.|cmofwater,Atmospherictemperature=l5oCandpressure=1.0135bar.
Calculate:
(a) Brake thermal efficiencY
(b) Brake mean effectual Pressure
(c) Volumetric efficiencY.
Page 1 of3 [e760]
[4E414s]
Page 2
OR
Q.l (a) Explain energy balance of I.C. engine. tSl
(b) What are the main constituents of emission from S.I. engine? Write down the
limits of emissions as per Indian standard. t4+4=8)
UNIT.II
Q.2 Explain the combustion in S.I. engine. Draw P-Q diagram and explain three stage of
combustion' [4+4+8=16]
OR
Q.2 Explain the four stage of combustion in C.I engine and draw P-Q diagram for
combustion. t12+4=l6l
UNII-rr
Q.3 (a) What are fuel requirement for following operating condition of S.I.
engine: l4x3=l2l
(i) Idling and low load.
(ii) Cruising range.
(iii) Maximum power range
(b) Explain working of mechanical fuel pump. t4l
OR
Q.3 (a) Explain working of electronic ignition system. t8l
(b) Explain the following:
(i) Common rail injection system
(ii) Distributorinjection system. l4x2=8)
Q.4 (a) Why cooling system is required in I.C. engines? What are the effects of over
cooling and under cooling? [4+4=8]
(b) Explain different methods of supercharging in I.C. engines. l4x2=8)
14841.4s1 Page 2 of3 Ie760l
Q.l (a) Explain energy balance of I.C. engine. tSl
(b) What are the main constituents of emission from S.I. engine? Write down the
limits of emissions as per Indian standard. t4+4=8)
UNIT.II
Q.2 Explain the combustion in S.I. engine. Draw P-Q diagram and explain three stage of
combustion' [4+4+8=16]
OR
Q.2 Explain the four stage of combustion in C.I engine and draw P-Q diagram for
combustion. t12+4=l6l
UNII-rr
Q.3 (a) What are fuel requirement for following operating condition of S.I.
engine: l4x3=l2l
(i) Idling and low load.
(ii) Cruising range.
(iii) Maximum power range
(b) Explain working of mechanical fuel pump. t4l
OR
Q.3 (a) Explain working of electronic ignition system. t8l
(b) Explain the following:
(i) Common rail injection system
(ii) Distributorinjection system. l4x2=8)
Q.4 (a) Why cooling system is required in I.C. engines? What are the effects of over
cooling and under cooling? [4+4=8]
(b) Explain different methods of supercharging in I.C. engines. l4x2=8)
14841.4s1 Page 2 of3 Ie760l
Page 3
,q
Q'4 (a) what are the various functions
of rubrication in I.C. engines?
Explain. How
lubricating oils are rated?
(b) Explain pressurise wet sump [5+3=$]
Iubrication system.
t8l
UNIT-V
Q'5 (a) Explain the construction
and working of duar
fuel engrne cycle. Explain
its
merits and demerits as
compare to conventional
cycle.
(b) What are the applications [8+4=121
of multifuel engines?
t41
OR
Q.5 (a) Explain rhe followings:
. (i) Free pisron Engine
(ii) Rorary Engine.
[8x2]
[4E4t4s]
Page 3 of3
Ie7601
Q'4 (a) what are the various functions
of rubrication in I.C. engines?
Explain. How
lubricating oils are rated?
(b) Explain pressurise wet sump [5+3=$]
Iubrication system.
t8l
UNIT-V
Q'5 (a) Explain the construction
and working of duar
fuel engrne cycle. Explain
its
merits and demerits as
compare to conventional
cycle.
(b) What are the applications [8+4=121
of multifuel engines?
t41
OR
Q.5 (a) Explain rhe followings:
. (i) Free pisron Engine
(ii) Rorary Engine.
[8x2]
[4E4t4s]
Page 3 of3
Ie7601
Document Details
| Board / Org | Default |
| Exam | Semester Exams |
| Type | Question Paper |
| Pages | 3 |
| Updated | 30 Apr 2026 |