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Pune University - SY BSc (Sem - I) VOC ELECTRONIC EM : Paper- II, April 2010

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Total No. of Questions : 4] [Total No. of Pages : 2 P300 [3717] - 146 S.Y. B.Sc. ELECTRONIC EQUIPMENT MAINTENANCE (EEM) VOC - EEM - 212 : Maintenance Concepts and Repair - II-A (Vocational) (New Syllabus) (Paper - II) (Sem. - I) Time : 2 Hours] Instructions to the candidates: 1) All questions are compulsory. 2) Figures to the right indicate full marks. 3) Neat diagrams must be drawn wherever necessary. 4) Use of log tables and/or calculators is allowed. [Max. Marks : 40 Q1) Answer all of the following : a) List typical causes of failure in equipment. [1] b) Which of the two systems is more reliableseries or parallel? [1] c) Name the parts of taperecorder, which wear out fast. [1] d) Name five types of fire extinguishers. [1] e) What potential problems may one face in maintaining electronic equipment? [2] f) Comment on system reliability and its relation with failure rate. [2] g) Define the terms troubleshooting and repair . [2] h) Why is the lead acid battery not left in discharged condition for long? What is the desired precaution in the eventuality of such a situation?[2] Q2) Answer any two of the following : a) Write a note on Total Quality Management and its importance in ISO certification. [4] b) What activities are involved in the preventive maintenance schedule of a DC? [4] c) List the typical items of information in a service manual. Explain the role of service manual in corrective maintenance. [4] P.T.O. Q3) Answer any two of the following : a) What is CVCC power supply? State how to set up the CVCC power supply. State a typical fault condition of it. [4] b) List four tools used for servicing along with function of each. [4] c) Discuss installation plan for a TV receiver. [4] Q4) Answer all : a) Write a note on the following aspects of successful installation : i) b) Selection of the site. ii) [6] Preparation of the site. What are the advantages and disadvantages of nickel-cadmium batteries? State applications of these. [6] OR a) Write a note on Power Supply System with an example of calculating/ estimating electric load for a typical PC(desktop). b) Explain the term Preventive Maintenance and write the advantages of Preventive Maintenance giving suitable examples. vvvv [3717]-146 2

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Additional Info : S.Y. B.Sc. Electronic Equipment Maintenance (Semister - I), VOC - EEM - 212 : Maintenance Concepts and Repair - II - A (Paper - II) (New Course) (Vocational), Pune University
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