B.TechSemester 52024-25I C Engines Fuels LubricationBME052
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I C Engines Fuels Lubrication (BME052) - AKTU Question Paper 2024-25

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU I C Engines Fuels Lubrication Previous Year Question Paper for B.Tech Semester 5, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 5
Session:2024-25
University:AKTU / UPTU

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Questions Asked in 2024-25

I C Engines Fuels Lubrication (BME052) — complete question paper · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 0 7 = 1 4
  • a
    Draw valve timing diagram. 2 2
  • b
    Explain briefly the principle of Turbo Charger. 3 1
  • c
    How Carburetion occurs in I C Engine? Explain briefly. 2 2
  • d
    What is the effect of temperature on CO, HC, NOx formation 4 3
  • e
    Discuss the mixture requirements at different loads and speeds . 2 2
  • f
    Why two stroke engines have higher mechanical efficiency but l ower thermal efficiency?
  • g
    How GDI Engine works? Explain briefly. 3 2
Section BAttempt any three of the following: 07 x 3 = 21
  • a
    Explain the func tion of Spark Plug with neat diagram 1 2
  • b
    Explain the effect of CO, HC, NOx and PM on environment and human health 4 3
  • c
    Explain briefly the working of MPFI Engine. 2 2
  • d
    For the same compression ratio and heat addition, which cycl e (Otto, Diesel, Dual) is most efficient or least efficient?
  • e
    What is the effect of Air-Fu el Ratio on pollution generation? Explain briefly. 4 3
Section CAttempt any one part of the following: 07 x 1 = 07
  • a
    A petrol engine is supplied w ith fuel which has a calorific value of 42 MJ/kg. The pressure in the cylinder at 30% and 70% of compression strok e are 1.3 bar and 2.6 bar respectively. Assuming pV 1.33 = Constant, find air standard efficiency of constant volume cycle. Also, find the air standard efficiency o f constant pressure
  • c
    y c l e i f c u t - o f f r a t i o i s 1 . 2 . A l s o , c o m p a r e t h e e f f i c i e n c y o f b o t h t h e c y c l e s i f compression ratio is 8
  • b
    The pressure and temperature of a Diesel Cycle at the start are 1 bar and 17 0C. The pressure at the end of compression is 40 bar and at the end of expansion is 2 bar. Find the efficiency. Assume ϒ = 1.4
  • a
    Discuss various stages of combustion in SI Engine with figure in detail. 2 1
  • b
    Discuss various stages of combustion in CI Engine with figure in detail. 2 1
  • a
    What are different types of combustion chambers in CI Engine? Explain any one in detail
  • b
    What are different types of Lubrication System? Explain brie fly any one detail. 3 2
  • a
    Explain the working of Homogeneous charge Spark Ignition Engine. 3 2
  • b
    What are different gaseous fuels and their properties. Expla in in detail. 2 3
  • a
    Explain the construction and working with neat diagram of Je rk Type Fuel Injection Pump
  • b
    What is the use of Catalytic Convertor? Explain the working of Three Way Catalytic convertor

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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