PTU Punjab Technical University B-Tech May 2019 Question Papers 3rd Semester May Marine Engineering
Total No. of Pages : 03
Total No. of Questions : 07
B.Tech. (Marine Engg.) (2013 Onwards)/(ME)(2011 Onwards) (Sem.?3)
MACHINE DRAWING
Subject Code : BTME-303
M.Code : 59113
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of NINE questions carrying T WO marks
each.
2.
SECTION-B contains FOUR questions carrying FOUR marks each and students
have to attempt any T HREE questions.
3.
SECTION-C contains T WO questions carrying T HIRT Y marks each and students
have to attempt any ONE question.
4.
First angle projection to be used. You may assume any missing dimension.
SECTION-A
Q1. Answer briefly :
a) What is the purpose of Fullering in riveted joint?
b) Draw the freehand sketch of Metric thread profile giving its important proportions.
c) What is the advantage of Plummer block over a simple bushed bearing?
d) Draw the symbols for single butt weld.
e) What are permanent fastenings?
f) Describe the aligned system of dimensioning.
g) What is a left hand thread?
h) What is chamfering?
i) What is the advantage of providing protective flanges?
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SECTION-B
Q2. Sketch freehand the top view and sectional front view of a single riveted double cover butt
joint. Take rivet diameter as 24 mm.
Q3. Draw the three views of a hexagonal nut and show all the proportions.
Q4. Sketch freehand the full sectional front view of spigot and socket joint.
Q5. Draw Knuckle and Buttress threads and give their full details.
SECTION-C
Q6. Figure-1 shows the details of Eccentric. Assemble the component and draw :
(i)
Full sectional front view
(ii) Top view
RECESS
M22?2.52 2-HOLES
TAPPED CSK AT 90?
2
FOR SNUG
2
4
3
25
3
8
2
3
3?3
57
R10
5
M35
19 25
?2
8 3
R10
35
40
9
7
S
5
R
6
2
C
8
6 4
132
2
3
5
7 81
R
1
162
40
5
S
R
R156
S
22
R
C
4
C
5
6
8
2
8
0
1
3
32
4
ROD END
R
1
(F.S.)
R156
187
187
R
35
R13
R28
6
8
6
4
228
25
2
3
R19
2
64
2
3
12
3
64
64
48
48
PACKING
STRAP
(G.M.2-OFF)
(G.M.)
64
12
M25?2.5
2
2
4
4
12
0
SNUG 3?3
20
108
1919
4
32
6
R13
175
BOLT AND NUTS
R
(MS?20FF)
13
KEYWAY
R
6
52
35
24?8
1
1616
48
5
R19
6
5
32
9
1
5
6
162
2
R
R13
1
0
45?
5
98
M35?2
BOLT
STUD
35
(M.S.)
(MS 20FF)
Fig.1
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Q7. Figure-2 shows the details of a hand drill. Assemble the components and draw :
(i)
Front view, left half in section
(ii) Right side view
75
R16
38
5 CSK FOR
8 3
R9
ITEM 19
R9
8
0
1
5
8
4
11
46
22
3
40
1
18
2
6
10
21
3
12
8?36DEEP
5
20
9
40
13
1?45?
11
24
2?2 SLOT
8
m10-6H
10
R25
4
32
H
g
18?
-
6
R
5
0
-
6
5
2
2
2
2
2
?
?
2
5
2
2
2.5
2
2
M
M
0
1
14
16
20
0.71U
3 11
13
STEELFERRULE
1.5
.
5
2
1
3
35
3 HOLES 1
4
ON 10 PCD
18?20?
6
8
6
9
1
1?45? CHAMFER BOTH
ENDS
3
20
2
M.S
19
1
M.S
18
3
WIRE
17
3
C.S.
5
16
1
M.S.
R12
14
120?
15
1
M.S.
14
1
M.S.
2
1
13
1
M.S.
12
1
"
18?
11
1
"
10
1
WOOD
.
5
1
9
1
"
1
1
8
1
"
2
7
1
M.S.
3
6
1
C.I.
R28
17
5
1
C.I.
4
1
C.I.
13
3
1
M.S.
8
6
2
1
M.S.
1
1
C.I.
0.71U
12
STEEL
10
FERRULE
Fig.2
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 04 November 2019