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Question on Machine Design (8 Sem)

ASSIGNMENTS

UNIT – I
Q.1) List & discuss briefly the factors that control the power transmission capacity of a belt.
Q.2) Discuss various important parameters necessary for the selection of a particular drive for power transmission.
Q.3) Under what circumstances a fiber rope & a wire rope is used ? What are the advantages of a wire rope over fiber rope ?
Q.4) What do you understand by simple duplex & triplex chains ?
Q.5) Write the design procedure for a chain drive.


UNIT – II
Q.1) State the two most important reasons for adopting involute wire for a gear tooth profile.
Q.2) How the shaft and arms for spur gear are designed?
Q.3) What condition must be satisfied in order that a pair of spur gear may have a constant V.R.?
Q.4) Define formative or virtual number of teeth on a helical gear.
Q.5) What are the various forces acting on a bevel gear?

UNIT – III
Q.1) Explain the various types of cylinder liners.
Q.2) Explain the various stresses induced in the connecting rod.
Q.3) Why the area of the inlet valve part made larger then the area of exhaust valve part ?
Q.4) At what angle of the crank, the twist moment maximum in the crank shaft?
Q.5) Under what forces the big end bolt and caps are designed.


UNIT – IV
Q.1) How does the working of a clamp coupling differ from that of a muff coupling ? Explain.
Q.2) Explain the various types of ends used for pressure vessel giving practical applications of each.
Q.3) Discuss the function of coupling. Give at least one application.
Q.4) What is the effect of keyway cut into the shaft.
Q.5) How do you distinguish between a thick and thin cylinder.

UNIT – V
Q.1) Write short note on Engineering applications of optimization.
Q.2) Write short note on  Single Vs multi variable optimization problems.
Q.3) Explain the I Man matrix with positive definite and negative definite.
Q.4) Explain the semi definite and saddle point conditions with example.
Q.5  Define the following terms with suitable examples.
(I) Pro-assigned parameters

             (II) Nltle Constraints


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