CS/B.TECH (AUE-OLD)/SEM-4/AUE-405/2012
2012
DESIGN OF MACHINE ELEMENTS
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) According to Indian Standard specifications, a plain
carbon steel designated by 40C8 means that
a) carbon content is 0·04 per cent and manganese is
0·08 per cent
b) carbon content is 0·4 per cent and manganese is
0·8 per cent
c) carbon content is 0·35 to 0·45 per cent and
manganese is 0·60 to 0·90 per cent
d) carbon content is 0·60 to 0·80 per cent and
manganese is 0·8 to 1·2 per cent.
ii) According to Indian Standard specifications,
100 H 6/g 5 means that the
a) actual size is 100 mm
b) basic size is 100 mm
c) difference between the actual size and basic size is
100 mm
d) none of these.
iii) Shock resistance of steel is increased by adding
a) nickel
b) chromium
c) nickel and chromium
d) sulphur, lead and phosphorus.
iv) In transverse fillet welded joint, the size of weld is equal