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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER 6(OLD) • EXAMINATION SUMMER 2018
Subject Code: 341903 Date: 04-May-2018
Subject Name: Plant Maintenance 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. Each question carry equal marks (14 marks)
Q.1

List the primary and secondary functions of maintenance department and explain any one from each category.
07



07

Define wear. State different types of wear. Explain any one of them.




Q.2

Differentiate between preventive maintenance and breakdown maintenance.
07



07

State the various factors which are considered at the time of selection of bearing




OR

Write short notes on stress corrosion erosion corrosion
07


Q.3

Draw a decision tree for the fault tracing for petrol engine fails to start.
07



07

State the rules for assembly and disassembly.




OR
Q.3

Draw a decision tree for finding fault for pump fails to deliver water.
07



07

Define periodic inspection state the factors to be considered in periodic inspection.




Q.4

Write the repair cycle for a centre lathe.
07



07

List the various types of hazards explain any one of them.

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OR
Q.4

State at least ten advantages of preventive maintenance.
07



07

Classify types of an accident explain any one of them.




Q.5

List recovery methods explain metal spraying method with neat sketch.
07



07

Differentiate between boiler foundation engine foundation.




OR
Q.5

Write the concept need applications of retrofitting.
07



07

Write short notes on Grouting Erection