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20th National Certification Exam Energy Managers & Auditors SEPTEMBER 2019 Paper 2

13 pages, 50 questions, 0 questions with responses, 0 total responses,

bee_energy
Jawaharlal Nehru Technological University (JNTUH), Hyderabad

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Paper-2 Code: Pink 20th NATIONAL CERTIFICATION EXAMINATION FOR ENERGY MANAGERS& ENERGY AUDITORS- September, 2019 PAPER 2: Energy Efficiency in Thermal Utilities General instructions: o o o o o Please check that this question paper contains 8 printed pages Please check that this question paper contains 64 questions The question paper is divided into three sections All questions in all three sections are compulsory All parts of a question should be answered at one place Section I:OBJECTIVE TYPE (i) (ii) (iii) Marks: 50 x 1 = 50 Answer all 50 questions Each question carries one mark Please hatch the appropriate oval in the OMR answer sheet with Black Pen or HB pencil, as per instructions 1. Arrange the following fuels in decreasing order of their GCV s - (p) Bagasse, (q) Furnace Oil, (r) Coal, (s) Hydrogen a) s-q-r-p b) p-q-r-s c) r-s-q-p d) q-r-s-p 2. Which of the following contributes to spluttering of flame at burner tip during combustion of fuel oil? a) ash content b) water content c) Sulphur content d) ambient air humidity and temperature 3. Which trap is preferred in condensate removal from steam main lines? a) Float trap b) Thermodynamic trap c) Thermostatic trap d) All of the above 4. In an FBC boiler, with low ash fusion coal, if the bed temperature exceeds 950 C, the result is: a) Boiler explosion b) clinker formation c) Melting of lime stone d) Ash carry over 5. Water logging of 3 m lift of condensate, at trap discharge, will result in back pressure of _________ a) 0.03 kg/cm2 b) 0.3 kg/cm2 c) 3 kg/cm2 d) 30 kg/cm2 6. When pure hydrogen is burnt with stoichiometric air, percentage CO2 on volume basis, in dry flue gas, will be _____ a) 79% b) 21% c) 0% d) 100% 7. Heat transfer rate for drying application will be low if we heat with _________ a) Saturated steam b) Dry steam c) Superheated steam d) None of the above 1 _____________________ Bureau of Energy Efficiency

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