Winter 2015 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – IV-EXAMINATION – WINTER 2015
Subject Code: 3341906 Date: 11/12/2015
Subject Name: Plant Maintenance and Safety
Time: 02:30 PM TO 5:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

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Q.1 Answer any Seven out of Ten. 14

(1) List the methods for selection of replacement. 02

(2) Write any five types of maintenance. 02

(3) List any four methods of wear detection. 02

(4) Define wear. How it can be reduced? 02

(5) Define the term scheduling. 02

(6) What is fault tracing? 02

(7) List the different methods for degreasing. 02

(8) List the types of fault arising in a machine tool. 02

(9) List various types of hazards. 02

(10) Define the industrial accident. 02

Q.2 (a) Define the term maintenance. Write any three aims of maintenance engineering. 03

OR

(a) State the factors affecting maintenance cost. 03

(b) Explain mechanical wear. 03

OR

(b) State the causes of wear. 03

(c) State at least any seven real examples of wear occur. 04

OR

(c) Differentiate between Galvanic and Biological corrosion. 04

(d) Enlist types of lubricants and explain any one of them. 04

OR

(d) What is stress corrosion? How it can be reduced? 04

Q.3 (a) Draw a decision tree for the petrol engine fails to start. 03

OR

(a) Explain how the decision tree helpful in fault tracing? 03
.
(b) Give reason for noisy operation of a pump. 03

OR

(b) Give reasons for increased fuel consumption of an engine. 03

(c) Define and state use of repair complexity. 04

OR

(c) State the rules for assembly and disassembly. 04

(d) Explain the need of preventive maintenance in industry. 04

OR

(d) Give the details for maintaining a pump. 04

Q.4 (a) Explain VEIN analysis. 03
.

OR

(a) Explain the relation between safety and inspection. 03
.
(b) State the responsibilities of boiler inspector. 04

OR

(b) What safety precautions are necessary for lathe machine operation? 04

(c) State the advantages and limitations of welding as recovery method. 07

Q.5 (a) Define the term grouting and list the equipment used in erection work. 04

(b) List the responsibilities of maintenance department. 04

(c) List the materials used in foundation. 03

(d) State six types of foundation bolts used in practice. 03

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Winter 2014 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–IV • EXAMINATION – WINTER • 2014
Subject Code: 3341906 Date: 08-12-2014
Subject Name: Plant Maintenance and Safety
Time: 02:30 pm - 05:00 pm Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is considered to be Authentic.

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Q.1 (a) List the Primary and Secondary functions and responsibilities of maintenance
department. 07

(b) Explain corrosion prevention methods. 07

Q.2 (a) Define Wear. How it can be reduced? State its effects on performance. 07

(b) Give difference between preventive maintenance and breakdown
Maintenance. 07

OR

(b) Enlist types of lubricants and explain any two of them. 07

Q.3 (a) Draw a decision tree for the fault “Low air pressure in Compressor.” 07

(b) Define repair cycle. State the stages involved in repair cycle. 07

OR

Q.3 (a) Define Recovery and explain any one method of recovery with neat sketch. 07

(b) A Scooter engine fails to start. Draw a decision tree for the sequence of activities
involved in fault tracing. 07

Q.4 (a) Explain the need of preventive maintenance in industries. 07

(b) Classify types and causes of accident and explain. 07

OR

Q. 4 (a) Define the term “Erection” and list the equipment used in erection work. 07

(b) Explain the reconditioning and retrofitting of machine tools. 07

Q.5 (a) List five equipments used in conditioning monitoring. Explain any one with
Figure. 07

(b) Define foundation. State its effects for product accuracy and safety of machine operator. 07

OR

Q.5 (a) Describe procedure of periodic inspection. 07

(b) Explain service life of machine tools and equipments. 07

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Summer 2014 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–IV • EXAMINATION – SUMMER • 2014
Subject Code: 3341906 Date: 05-06-2014
Subject Name: Plant Maintenance and Safety
Time: 10:30 am - 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. English version is considered to be Authentic.

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Q.1 (a) State the responsibilities of maintenance department. 07

(b) List causes and effects of wear. 07

Q.2 (a) Explain the factors affecting corrosion. 07

(b) Draw decision tree for low steam pressure in boiler. 07

OR

(b) Explain fault tracing and decision tree. 07

Q.3 (a) List various types of faults in machine tools and state their causes. 07

(b) Describe procedure of periodic inspection. 07

OR

Q.3 (a) Describe methods of degreasing and cleaning of machine parts. 07

(b) Explain overhauling and repair complexity. 07

Q.4 (a) Differentiate between predictive and preventive maintenance. 07

(b) Explain the factors related to control an accident. 07

OR

Q. 4 (a) Describe salient features of Factory Act 1948. 07

(b) Explain mechanical and electrical hazards. 07

Q.5 (a) Define recovery, reconditioning and retrofitting. 07

(b) Explain recovery methods for broken gear tooth and worn out guide ways. 07

OR

Q.5 (a) Define the terms foundation, erection and commissioning of equipment. 07

(b) Explain alignment and acceptance test of machine. 07

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Summer 2015 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – • EXAMINATION – SUMMER-2015
Subject Code: 3341906 Date: 19/05 /2015
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 maintenance engineering.

2. List the types of maintenance.

3. List types of wear.

4. List out corrosion prevention methods.

5. Define decision tree.

6. Define De-greasing.

7. Define an accident.

8. Define retrofitting

9. Define erection.

10. Define foundation.

Q.2 (a) Explain any two types of maintenance. 03

OR

(a) Explain primary function of maintenance engineering. 03

(b) List the causes of wear. 03

OR

(b) List the effect of wear. 03

(c) Explain desirable properties of lubricant. 04

OR

(c) List out the lubrication methods. 04

(d) Differentiate galvanic and biological corrosion. 04

OR

(d) Explain cathodic protection. 04

Q.3 (a) List out different method of De-greasing and cleaning. 03

OR

(a) Explain needs of cleaning the parts. 03

(b) Explain fatal accident. 03

OR

(b) Explain safety colour code. 03

(c) List out reason for lath chuck stops revolving. 04

OR

(c) List the steps involving in preparing decision tree. 04

(d) Explain VEIN analysis. 04

OR

(d) List the mechanical hazards and its causes. 04

Q.4 (a) Write a Short note on repair complexity. 03

OR

(a) List steps involving in preventive maintenance. 03

(b) Describe causes of fire. 04

OR

(b) Write a note on fire fighting methods. 04

(c) Scooter engine does not start. Draw a decision tree for it. 07

Q.5 (a) Explain chromium plating. 04

(b) List out advantages of reconditioning. 04

(c) List out effects of foundation.03

(d) Write a short note on grouting. 03

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Plant Maintenance and Safety previous year question paper | 3341906 |

What advantage can you take with gtu previos Exam Papers?

Exams appear to be a mystery to most students but some may find it exciting by looking at it as a competition. They pray about having a perfect dream about the coming test so that they already know it but that is not a reality truth is if you wants to succeed you have to prepare well for the exams.

Studying past papers are a valuable part of exam preparation and help keep revision focused on important themes whilst practicing exam style questions.

One of the simplest ways to prepare for the exams is to manage your study according to a well-defined time table and allot time to every subject. It is a good practice to compare the questions of the examiners because it will give a better idea about what the examiner is looking for in the exam.

 Technique for Studying gtu previos Exam Papers

Most of the universities keep copies of the past exams in their libraries or they can also be accessed from the university websites available on the internet. A good practice is to take past five year papers and, instead of going through the past exam paper year by year, find questions about the same topic and prepare that topic really well. This technique can be very helpful for preparing the exam.

Advantages of Studying gtu previos Exam Papers

One of the most important part of exam preparation is going through past exams. It is important  to revise your entire syllabus quickly. They can provide you the general idea of the upcoming paper and you could easily guess the important topics of a particular subject. Past exam papers give you the idea of number of questions and the available choices. It is therefore necessary for students to give some time to go through the past paper while revising a subject.

Past exam papers are one of the most helpful tools available to prepare for both internal and external examinations as they provides students with practical insight into how the forthcoming exam paper is likely to look and the key themes or subject areas most likely to be covered. Before starting revision for a subject it is always worth taking time to seek out past papers.

Summer 2016 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
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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Winter 2016 Plant Maintenance and Safety Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING - SEMESTER–IV • EXAMINATION – WINTER - 2016
Subject Code: 3341906 Date: 30- 11-2016
Subject Name: Plant Maintenance and Safety
Time: 02:30 PM TO 05:00 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 Safety

2. Enlist different Hazards produced in Plant.

3. Define Lubrication.

4. Define the Term Maintenance.

5. Enlist the Causes of Wear.

6. Define the Safety Color Code.

7. Define MAPI Method of Replacement.

8. Describe methods to maintain a Pump.

9. Enlist the Corrosion Preventive methods.

10. Define De-greasing

Q.2 (a) Explain in brief the Factors affecting the Corrosion. 03

OR

(a) Enlist various types of Machine Faults. 03

(b) Give any 4 Differences between Predictive & Preventive Maintenance. 03

OR

(b) Define Recovery & Reconditioning. 03

(c) Explain Electrical Hazards in brief. 04

OR

(c) Describe salient features of Factory Act 1948 in brief. 04

(d) Define the term Foundation & Erection in brief. 04

OR

(d) Explain Alignment Test of Machine. 04

Q.3 (a) Explain Responsibilities of Maintenance Department in brief. 03

OR

(a) Enlist the types of Lubricants. 03

(b) Define the Repair Cycle. 03

OR

(b) Define the term Retrofitting. 03

(c) Explain Service Life of Machine Tool. 04

OR

(c) Describe the Causes of Fire. 04

(d) Classify the types of Accident. 04

OR

(d) Explain in brief Periodic Inspection. 04

Q.4 (a) Explain Chromium Platting. 03

OR

(a) Enlist the Fire Fighting Methods with brief introduction. 03

(b) Explain the Mechanical Hazards in brief. 04

OR

(b) Describe the Term Grouting. 04

(c) Draw the decision Tree for the fault “Less Pressure in Pressure Cooker” 07

Q.5 (a) List out the reasons for Non working of Arc Welding Machine 04

(b) Explain the Fatal Accident. 04

(c) Explain the Term Overhauling. 03

(d) Define Wear & state its effect on performance of Machine. 03

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