B.TechSemester 42025-26Applied ThermodynamicsBME401
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Applied Thermodynamics (BME401) - AKTU Question Paper 2025-26

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Applied Thermodynamics Previous Year Question Paper for B.Tech Semester 4, academic session 2025-26. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 4
Session:2025-26
University:AKTU / UPTU

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Questions Asked in 2025-26

Applied Thermodynamics (BME401) — complete question paper · 70 marks · 3 Hours

Section AAttempt all questions in brief. 02 x 7 = 14
  • a
    State the relationship between compression ratio and efficiency for an Otto cycle. CO
  • b
    Define "Lower Heating Value" (LHV) of a fuel. CO
  • c
    What is the function of a Fusible Plug in a boiler? CO
  • d
    Define "Nozzle Efficiency." CO
  • e
    Explain the term "Bleeding" in steam turbines. CO
  • f
    Define "Work Ratio" in the context of a Gas Turbine cycle. CO
  • g
    What is the difference between a Turbojet and a Turboprop engine? CO
Section BAttempt any three of the following: 07 x 3 = 21
  • c
    Explain the working of a Babcock and Wilcox boiler with a neat sketch. CO
  • d
    Dry saturated steam at 10 bar is expanded in a nozzle to a pressure of 1 bar. If the expansion is isentropic, find the velocity of steam leaving the nozzle. CO
  • e
    Discuss the velocity compounding of a multistage impulse turbine using a diagram showing velocity and pressure variations. CO
Section CAttempt any one part of the following: 07 x 1 = 07
  • b
    Compare the performance of Superchargers and Turbochargers. CO1 K2 (SEM. IV) THEORY EXAMINATION 2025-26 APPLIED THERMODYNAMICS
  • b
    Explain the "Exergy Analysis" of a Vapour Power cycle. CO
  • b
    Define "Draught" and derive an expression for the height of a chimney for maximum discharge. CO
  • b
    Explain the phenomenon of stationary normal shock waves in convergent- divergent nozzles. CO
  • b
    Describe the working principle of a Liquid Propellant Rocket Engine. CO

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.

Repeated Questions — BME401

Questions that appeared in more than one session, found by comparing 3 years of Applied Thermodynamics papers (2023-24, 2024-25, 2025-26)

2x

What is the function of a Fusible Plug in a boiler? CO

Appeared in: 2023-24 · 2025-26

Applied Thermodynamics — Other Year Papers

AKTU Applied Thermodynamics PYQs from other sessions

Applied Thermodynamics2021-22Applied Thermodynamics2022-23Applied Thermodynamics2023-24Applied Thermodynamics2024-25

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