Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) Mechanical Engineering 2020 December 4th Sem 59130 Theory Of Machines Ii Previous Question Paper
Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (ME) (2012 Onwards) (Sem.?4)
THEORY OF MACHINES ? II
Subject Code : BTME-402
M.Code : 59130
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION?A
Write briefly :
Q1. Draw the diagram of a body experiencing two force system, when (1) Body not in
equilibrium (2) Body in equilibrium
Q2. What do you mean by compound pendulum?
Q3. Write the expression for balancing a single rotating mass.
Q4. Explain the term 'Partial balancing of primary force'?
Q5. Show pressure angle of a gear with the help of a diagram.
Q6. Give two advantages of a Cycloidal gear profile.
Q7. Draw diagram of reverted gear train.
Q8. With the help of diagram, differentiate between spinning and precession of a gyroscope.
Q9. What is the meaning of dimensional synthesis in a mechanism?
Q10. Write about dedendum of a gear.
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SECTION-B
Q11. Explain the static force analysis of a Journal bearing considering frictional forces.
Q12. Write the expression for Correction Couple of a connecting rod of an engine.
Q13. Write the derivation to obtain the expression for variation in tractive effort of an engine.
Q14. Derive expression for minimum number of teeth on pinion to avoid interference with
wheel.
Q15. Write in detail about three position synthesis for four bar mechanism.
SECTION-C
Q16. The number of teeth on each of the two equal spur gears in mesh is 40. The teeth have 20?
involute profile and the module is 6mm. If the arc of contact is 1.75 times the circular
pitch, find the addendum.
Q17. An epicyclic gear train consists of a sunwheel S, a stationary internal gear E and three
identical planet wheels P carried on a star-shaped planet carrier C. The size of different
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toothed wheels are such that the planet C rotates at
of the speed of the sunwheel S. The
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minimum number of teeth on any wheel is 16. Determine the number of teeth on different
wheels of the train.
Q18. Explain the Gyroscopic effect on the stability of two wheel vehicle while taking a turn.
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 13 February 2021