Fourth Semester B. Tech. Degree Examination, December 2009
(2003 Scheme)
03.404 : PRODUCTION DRAWING (P)
Time : 3 Hours Max. Marks : 100
Instructions: Answer any two questions from Part A. Part B is compulsory.
Only first angle projection is to be used. Any missing dimensions
may be suitably assumed.
PART – A
1. Calculate the limit dimensions for an interference fit on the hole basis system for the
data given below.
Basic size of the shaft = ?? 40 mm
Maximum interference = 0.045 mm
Tolerance on the hole = 0.025 mm
Tolerance on the shaft = 0.015 mm
Check the calculated diamensions. Represent the same on a schematic drawing showing
all dimensions fully. 10
2. i) What is meant by Tolerance zone ? 4
ii) Show different methods of indicating Tolerances by letters and numerical symbols. 6
3. i) Explain the different symbols used for the indication of the quality of surface
texture on drawings. 4
ii) What do you mean by surface texture ? Explain the nomenclature of surface
texture with a neat sketch. 6
PART – B
4. Details of a 40 mm stop valve are shown in the figure. Draw the following fully
dimensioned views to a suitable scale. (i) Right half sectional elevation (ii) End view
from outlet side and (iii) Sectional plan. Also make a parts list. Show the necessary
machining symbols and give suitable tolerances. Missing dimensions, if any may
be suitably assumed. 80
––––––––––––––
(2003 Scheme)
03.404 : PRODUCTION DRAWING (P)
Time : 3 Hours Max. Marks : 100
Instructions: Answer any two questions from Part A. Part B is compulsory.
Only first angle projection is to be used. Any missing dimensions
may be suitably assumed.
PART – A
1. Calculate the limit dimensions for an interference fit on the hole basis system for the
data given below.
Basic size of the shaft = ?? 40 mm
Maximum interference = 0.045 mm
Tolerance on the hole = 0.025 mm
Tolerance on the shaft = 0.015 mm
Check the calculated diamensions. Represent the same on a schematic drawing showing
all dimensions fully. 10
2. i) What is meant by Tolerance zone ? 4
ii) Show different methods of indicating Tolerances by letters and numerical symbols. 6
3. i) Explain the different symbols used for the indication of the quality of surface
texture on drawings. 4
ii) What do you mean by surface texture ? Explain the nomenclature of surface
texture with a neat sketch. 6
PART – B
4. Details of a 40 mm stop valve are shown in the figure. Draw the following fully
dimensioned views to a suitable scale. (i) Right half sectional elevation (ii) End view
from outlet side and (iii) Sectional plan. Also make a parts list. Show the necessary
machining symbols and give suitable tolerances. Missing dimensions, if any may
be suitably assumed. 80
––––––––––––––
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