Subject Code: 142001
GUJARAT TECHNOLOGICAL UNIVERSITY
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SEMESTER-IV (OLD) - EXAMINATION - SUMMER 2019
Subject Name: Kinematics And Dynamics Of Machines
Time: 02:30 PM TO 05:00 PM
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Explain different types of kinematic pairs with suitable examples. [07]
(b) Explain different types of gear trains with suitable sketches. [07]
Q.2 (a) Explain different types of followers with neat sketches. [07]
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(b) What is velocity of rubbing? Explain it for a four bar chain mechanism. [07]
OR
(b) Explain different types of vibration with suitable sketches. [07]
Q.3 (a) Explain different types of pulleys with neat sketches. [07]
(b) Sketch & explain various inversions of four bar chain mechanism. [07]
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OR
(a) Derive a relation for minimum number of teeth on gear wheel and the pinion to avoid interference. [07]
Q.4 (a) By using Klein’s construction method, explain the procedure to determine velocity and acceleration of a slider crank mechanism. [07]
(b) Explain different types of cams with neat sketches. [07]
Q.5 (a) Explain the effect of gyroscopic couple on Naval ship during steering, pitching and rolling. [07]
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OR
(b) Explain working of pantograph mechanism with suitable diagram. [07]
Q.5 (a) Draw displacement, velocity and acceleration diagram for SHM and constant velocity motion of the follower. [07]
(b) Explain static balancing and dynamic balancing. [07]
OR
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(a) Derive the relation, T1/T2 = e for a flat belt drive. [07]
(b) Draw the profile of a cam operating a knife-edge follower having a lift of 30 mm. The cam raises the follower with SHM for 1500 of the rotation followed by a period of dwell for 600. The follower descends for the next 1000 rotation of the cam with uniform velocity, again followed by a dwell period. The cam rotates at a uniform velocity of 120 rpm and has a least radius of 20 mm. [07]
(a) Derive expressions for the exact and approximate lengths of belt in an open belt drive. [07]
Date: 17/05/2019
Total Marks: 70
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This download link is referred from the post: GTU BE 2019 Summer Question Papers || Gujarat Technological University
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