GTU · BE Mechanical · Semester 5
GTU 3151909 Heat Transfer Old Question Papers & Solutions PDF
Official Gujarat Technological University (GTU) old question papers PDF (Regular & Remedial) and step-by-step solved questions for Heat Transfer across 2023 – 2026 examinations.
19 questions GTU asked more than onceAsked in all 4 papers: Classify Heat ExchangersSee listExam papers
Most repeated questions
19 questions GTU set in two or more of 4 papers, most repeated first. Tap a year to open that paper at the question.
Classify Heat Exchangers
Summer 2026 Q5b Summer 2025 Q2b Winter 2024 Q4c OR Summer 2023 Q4b OR
Derive general heat conduction equation in Cartesian coordinates and prove that the steady state heat transfer equation without heat generation is
Summer 2026 Q1c Summer 2025 Q1c Winter 2024 Q2c Winter 2024 Q3b OR
Using Buckingham π theorem, show that the Nusselt number for free convection is a function of Grashof Number and Prandtl number
A steel rod ( k= 30W/m – deg) 1 cm in diameter and 5 cm long protrudes form a wall which is maintained at 100° C. the rod is insulated at its tip and is exposed to an environment with h = 50W/m² –deg and ta = 30°C. Calculate the fin efficiency, temperature at the tip of fin and the rate of heat dissipation.
Explain Critical radius of Insulation for cylinder.
Explain the utility of radiation shields.
Define thermal boundary layer and hydrodynamic boundary layer.
Define: Fourier number and Biot number in context of lumped system analysis.
Define shape factor and list any two salient features of it.
Draw the Boiling curve for water showing various regimes.
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Define Intensity of radiation. Prove that the intensity of normal radiation is 1/π times the total emissive power.
Derive equation of logarithmic mean temperature difference for parallel flow heat-exchanger.
A steel pipe of 20 mm inner diameter and 2 mm thickness is covered with 20 mm thick of fiber glass insulation (k = 0.05W/ m deg). If the inside and outside convective coefficients are 10 W/ m² deg and 5 W/ m² deg, Calculate the overall heat transfer coefficient based on inside diameter of pipe.
Summer 2026 Q2c Summer 2026 Q2c OR Summer 2023 Q1c Summer 2023 Q2a
An egg with mean diameter of 4 cm and initially at 20°C is placed in a boiling water pan for 4 minutes and found to be boiled to the consumer’s test. For how long should a similar egg for same consumer be boiled when taken from a refrigerator at 5°C. Take following properties for egg : k =10W / m°C , ρ=1200kg /m³ , c =2kJ / kg°C , h =100W /m² °C
Explain mean film temperature and bulk mean temperature.
What is the fouling factor, and how does it affect the performance of a heat exchanger?
List the applications of Fin and explain how a fin enhances heat transfer at the surface
Differentiate Filmwise and Dropwise condensation. Which type has higher heat transfer film condensation and why?
Define steady-state heat conduction. How does it differ from transient heat conduction?
Which branches take this subject
GTU's syllabus lists 3151909 for 2 branches. One set of papers serves all of them.
Semester 5: 2 branches
Automobile Engineering, Mechanical Engineering
Other Semester 5 subjects
Common questions
Are these GTU 3151909 Heat Transfer papers valid for both Regular and Remedial exams?
Yes. Gujarat Technological University (GTU) follows the same 70-mark syllabus, exam blueprint, and 23-mark passing cutoff for both Regular and Remedial (ATKT/backlog) examinations. All 7 past exam sessions (2023 – 2026) serve as comprehensive preparation for either attempt.
How can I download GTU 3151909 Heat Transfer old question papers PDF?
You can download official GTU 3151909 original question paper PDFs directly from the table above with 1 click and zero deceptive ads or wait timers. Every paper also includes interactive online questions with AI study prompts.
What is the passing mark for GTU Heat Transfer (3151909)?
The external theory exam carries 70 marks. The minimum passing cutoff is 23 marks (33%). Exam duration is 2.5 hours.
What is the GTU exam pattern for 3151909?
The examination contains 5 main questions of 14 marks each, totaling 70 marks. Questions 2 through 5 provide internal OR choices, typically split into 3-mark, 4-mark, and 7-mark questions.