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14th National Certification Exam Energy Managers & Auditors AUGUST 2013 Paper 3

15 pages, 64 questions, 1 questions with responses, 1 total responses,

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Jawaharlal Nehru Technological University (JNTUH), Hyderabad

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Paper 3 Set A KEY 14th NATIONAL CERTIFICATION EXAMINATION 2013 FOR ENERGY MANAGERS & ENERGY AUDITORS PAPER 3: Energy Efficiency in Electrical Utilities Date: 25.08.2013 Section I: Marks: 50 x 1 = 50 The gross efficiency of a coal based power generating unit with a gross heat rate of 2490 kcal/kWh is b) 34.5 % c) 33.3% d) 45.2% The efficiencies of a power plant and transmission systems are 40%, and 97% respectively. The percentage loss of the distribution system of the same network is 23% . The cascade efficiency of generation ,transmission and distribution system is given by a)8,92 % 3. Max. Marks: 150 Answer all 50 questions Each question carries one mark Please hatch the appropriate oval in the OMR answer sheet with HB Pencil, as per instructions a) 40% 2. Duration: 3 HRS OBJECTIVE TYPE (i) (ii) (iii) 1. Timings: 0930 1230 HRS b) 29.87% c) 40 % d) 23% The rating of power factor correction capacitors at induction motor terminals should be a) 90% of no load magnetizing kVAr of induction motor b)100 % of no load magnetizing kVAr of induction motor c) 80% of no load magnetizing kVAr of induction motor d) none of the above 4. Select the correct statement: Power factor a) is the ratio of active and reactive power b) is the ratio of reactive and apparent power c) is the ratio of active and apparent power d) of a pure inductive and capacitive load is unity 5. The Energy Performance Index (EPI) of a building as per Energy Conservation Building Code (ECBC) and as defined in the Energy Conservation Act,2001 is: a) kWh per square meter per year c) kW per square meter _______________________ Bureau of Energy Efficiency b) kWh per square meter d) kWh per year 1

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