SE - 2019 - KOM - Question Bank PDF
SE - 2019 - KOM - Question Bank PDF
SE - 2019 - KOM - Question Bank PDF
15 Determine the Chebychev spacing for function y = log 10X for the 3 4 12
range of 1 ≤ x ≤ 5 where three precision points are required to be
considered. [12 Marks]
18 Design a four bar mechanism with input link a and output link c, 3 4 12
angle Ɵ and ɸ for three successive positions are given in table
below.
Position 1 2 3
Ɵ 55 25 -25
ɸ 110 40 -50
If the grounded link 40 mm using Freudenstein’s equation find
out length of other links to satisfy the given positional conditions.
[12 Marks]
21 The number of teeth on each of the two equal spur gears in mesh 4 4 06
are 40. The teeth have 20° involute profile and the module is 6
mm. If the arc of contact is 1.75 times the circular pitch, find the
addendum. Consider equal radius of the addendum circle of each
wheel. [06 Marks]
22 Two 20˚involute spur gears have module of 8 mm. Gear ratio 2.5, 4 4 12
speed of gear wheel 120 rpm, number of teeth on gear wheel
80.The addendum is such that path of approach & recess on
each side is 40% of maximum possible length each. Determine
addendum for pinion and wheel. Also determine length of arc of
contact. Does the interference occur? [12
Marks]
25 A pair of involute spur gears with 16˚ pressure angle and pitch of 4 4 12
module 6 mm in mesh. The number of teeth on pinion is 16 and
its rotational speed is 240 rpm. When gear ratio is 1.75. If
interference is just avoided, find addenda on pinion and gear
wheel, the length of path of contact, The maximum velocity of
sliding of teeth on either side of the pitch point.
[12 Marks]
26 State and explain Law of gearing with neat sketch. [06 Marks] 4 3 06
37 Give comparison between Gear Train and Gear Box. [04 Marks] 4 3 4
41 What are different types of Gear trains? Explain with neat sketch. 4 3 6
[06 marks]