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DIPLOMA ENGINEERING – SEMESTER – IV • EXAMINATION – SUMMER- 2016
Subject Code: 3341906 Date: 27- 05- 2016
Subject Name: Plant Maintenance and Safety
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
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Q.1 Answer any seven out of ten. 14
1. Define the term maintenance.
2. Define friction.
3. Define recovery.
4. What is fault tracing?
5. Write reasons of belt slipping.
6. List types of accidents.
7. What is reconditioning?
8. Write applications of retro-fitting.
9. Define foundation.
10. Define erection.
Q.2 (a) Write secondary functions of maintenance department. 03
OR
(a) Enlist wear reduction methods. 03
(b) Explain MAPI method of replacement. 03
OR
(b) Write advantages of breakdown maintenance. 03
(c) Differentiate between breakdown maintenance and preventive maintenance. 04
OR
(c) Classify friction. Explain static friction in detail. 04
(d) State causes of wear. 04
OR
(d) Write factors affecting corrosion. 04
Q.3 (a) Explain fretting corrosion. 03
OR
(a) List recovery methods for the equipment maintenance. 03
(b) List reasons for low air pressure in air-compressor. 03
OR
(b) Write different types of fault occur in machine tools. 03
(c) Explain repair complexity in detail. 04
OR
(c) Write short note on need of preventive maintenance in industry. 04
(d) List uses of repair complexity. 04
OR
(d) Write short note on safety colour code. 04
Q.4 (a) Write short note on backlash measurement. 03
OR
(a) Explain material handling hazards. 03
(b) Enlist duties of Boiler inspector. 04
OR
(b) Write applications of condition monitoring. 04
(c) Petrol engine fails to start. Draw a decision tree for it. 07
Q.5 (a) Explain VEIN-analysis in detail. 04
(b) State advantages of reconditioning. 04
(c) Differentiate between boiler foundation and engine foundation. 03
(d) Write causes of fire in industry. 03
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