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14th National Certification Exam Energy Managers & Auditors AUGUST 2013 Paper 2

16 pages, 64 questions, 3 questions with responses, 3 total responses,

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Jawaharlal Nehru Technological University (JNTUH), Hyderabad

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Paper 2 - Set A Key 14th NATIONAL CERTIFICATION EXAMINATION FOR ENERGY MANAGERS & ENERGY AUDITORS August, 2013 PAPER 2: Energy Efficiency in Thermal Utilities Date: 24.8.2013 Max.Marks:150 Timings:14:00 -17:00 Hrs Duration:3 Hrs Section I: OBJECTIVE TYPE 50 x 1 = 50 Marks: (i) Answer all 50 questions (ii) Each question carries one mark (iii) Please hatch the appropriate oval in the OMR answer sheet with Black Pen or HB pencil 1. In coal fired combustion, the flame length is influenced by a) moisture carbon 2. c) remains same d) none of the b) 6 c) 30 d) 103 b) pour point c) specific heat d) specific Which of the following contributes to spluttering of flame at burner tip during combustion of fuel oil ? a) ash content air 6. b) decreases Which property indicates the lowest temperature at which fuel oil is readily pumpable? a) flash point volume 5. d) fixed 100 kg of a fuel contains 3% sulphur. For complete combustion of sulphur in the fuel it will require _________kg of oxygen a) 3 4. c) volatile matter With increase in the percentage of excess air for combustion of coal, percentage of CO2 in flue gas a) increases above 3. b) ash content b) water content c) sulphur content d) humidity of In an oil fired steam boiler the air to fuel ratio is 15:1 & evaporation ratio is 14:1. The flue gas to fuel ratio will be _________________________ Bureau of Energy Efficiency 1

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