Download GTU BE/B.Tech 2018 Winter 5th Sem New 2152104 Fuels Furnaces Refractories And Pyrometry Question Paper

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Subject Name: Fuels, Furnaces, Refractories and Pyrometry

Time: 10:30 AM TO 01:00 PM

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Instructions:

1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

GUJARAT TECHNOLOGICAL UNIVERSITY

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1. (a) What is the basic concept of temperature measurement and control? MARKS 03
   (b) Explain with flow chart. 04
   

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   (c) List the types of thermocouples. 07
2. (a) Briefly explain principle, calibration and advantages of thermocouple. 03
   (b) What is the effect of high volatile matter on coal? 04
   (c) Give classification and grading of coal. 07
3. (a) Explain principle, construction & working of optical pyrometer. 07
   

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   OR
   With figure explain in detail determination of calorific value by bomb calorimeter.
4. (a) What is flash point and fire point? 03
   (b) Give the formula for determination of ash in coal and fixed carbon. 04
   (c) Describe the proximate analysis of coal. 07
   

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   OR
   Define Producer gas, Water gas, Blast furnace gas.
5. (a) Ilustrate with figure by-product of coke oven at high temperature carbonization process. 03
   (b) With figure give principle, construction and working of Muffle furnace. 04
   (c) Define and classify the furnace. 07

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6. (a) Ilustrate with figure heat, losses in furnaces. What are the steps to minimize it? 03
   (b) Give construction and working of induction furnace. 04
   OR
   Differentiate regenerator and recuperator. 07
7. (a) Explain combustion of fuel and problems based on air supplied. 03
   

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   (b) What is the difference between Natural draught, Induced Draught and Balanced draught? 04
   (c) Define and classify the refractory. 07
8. (a) What are the general requirements of a refractory material? 03
   (b) Write a short note on any non-conventional energy resources. 04
   OR
   

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   What is the full form of PCE? 07
9. (a) With flow chart give general production methods for refractory. 03
   (b) What is refractoriness under load? Explain the method to determine refractoriness under load. 04
   (c) 07

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