Maharashtra State Board of Technical Education 2007 Diploma Mechanical Engineering Production Process - Annual Pattern - Question Paper

Production Process
Third Year : 2007
3 Hr / 100 Marks

Instructions:

1. All ques. are compulsory.
2. Illustrate your answers with neat sketches wherever necessary.
3. Use of Blockpatterns, Slide rule, Mathematical and Steam Tables, Non-Programmable Electronic Pocket Calculator and Mollier's Charts is permissible.
4. Figures to the right indicate full marks.
5. presume suitable additional data, if necessary.


1. Attempt any 5 of the following: [Marks: 20]

a) Compared various kinds of production systems as regards plant layout, supervision, manufacturing efficiency and utilization of resources.

b) What is meant by simplification? How does it affect product design?

c) What is Break Even chart? State its uses.

d) Briefly define fixed plant layout, with suitable example.

e) elaborate the objectives of work measurement?

f) discuss the importance of material management?

g) Briefly define advantages of using Jigs and Fixtures.


2. Attempt any 4 of the following: [Marks: 16]

a) discuss the selection of material handling equipment with respect to nature of product.

b) define a 'Routing Sheet' for a component having a 5 operation.

c) Briefly discuss the results of implementations of Method Study.

d) define the stages in work measurement.

e) elaborate the factors on which Economic batch volume depends.

f) Differentiate ranging from Jigs & Fixtures.


3. a) Attempt the following: [Marks: 8]

i. Briefly define various elements of costs.

ii. State the factors on which inspection stages depends.


b) Attempt any 2 of the following: [Marks: 8]

i. define the meaning of Dispatching in connection with production planning & control.

ii. define the symbols used in Method Study.

iii. Draw 2 various kinds of bushes.


4. a) Attempt any 2 of the following: [Marks: 8]

i. "Productivity has now become practically a synonym for progress". Justify.

ii. Briefly define the data needed for cost estimation.

iii. define principles of motion economy related to workplace layout.


b) Attempt any 2 of the following: [Marks: 8]

i. How does product design affects costs?

ii. discuss the objectives of plant layout.

iii. discuss the factors considered while selecting the work or method study.


5. Attempt any 4 of the following: [Marks: 16]

a) define the methods of improving productivity.

b) What is meant by standardisation? discuss with a example.

c) elaborate fixed overheads. provide examples.

d) Draw a labelled diagram of belt conveyor.

e) discuss different factors considered while selecting an improper machine for a process.

f) How to obtain out idle time of operator and machine. define this with the help of 2 machine and 1 operator man machine chart.


6. Attempt any 4 of the following: [Marks: 16]

a) define a process operation sheet of a component having at lowest 3 operations.

b) Construct a network for the activities shown beneath and obtain critical path and project completion period.

Activity: 1-2, 2-3, 2-4, 2-5, 3-6, 4-6, 5-6, 6-7
Duration: 3, 1, 3, 2, 1, 6, 6, 8

c) How a critical exam is conducted in method study?

d) compute standard time for the data provided below?

i) avg. observed time = 2.5 minutes
ii) performance Rating = 100%
iii) Allowance = 15%

e) Briefly discuss ABC analysis for inventory control.

f) Why should the use of loose parts on drill jigs be avoided?

Earning:   Approval pending.