U07ME402 – KINEMATICS OF MACHINERY

                                               

B.E/ B.TECH DEGREE EXAMINATION NOV/DEC 2011

FOURTH SEMESTER

MECHANICAL ENGINEERING

U07ME402 – KINEMATICS OF MACHINERY

Time:Three Hours                                                        Maximum Marks:100

Answer ALL Questions

PART-A (10X 1=10Marks)

1.Cam and follower is              type of pair.

a.Closed pair       b.Turning pair    c.Higher pair       d.Lower pair

2.Quick return motoin mechanism is the inversion of  chain

a.Four bar chain mechanism b.Single slider chain mechanism   c.Double slider chain mechanism                  d.All the above

3. How many instantaneous centres are possible in a four bar chain mechanism.

a.8     b.6    c.4     d.10

4. In a four bar chain mechanism ,number of binary joints

          a.Four        b.Six          c.Eight       d.Ten

5.In a radial cam,the follower moves in a dirction to the axis.

          a. Parallel   b.Perpendicular            c.Inclined            d.All the above

6.For high speed engines, the cam follower should move with

          a. Reciprocating motion       b.Ocillating motion     c.Cycloidal motion      d.None of the above

7.Two intersecting and coplanar shafts are connected by gears.

          a.Spur gear          b.Helical gear      c.Bevel gear        d.Worm and worm wheel

8.In watch mechanism wich type of gear train is used.

          a.Reverted gear train.   b.Simple gear train      c.Compound gear train          d.Epicyclic gear train

9.What is the S.I unit for frictional moment?

          a.N/m                   b.N-m/S     c.N-m/s²     d.N-m

10.Function of dynamometer is

a.To measure displacement            b. To measure velocity.       

c.To measure acceleration.               d.To measure driving forcr

(Answer ALL the questions)

PART B   (10X 2=20Marks)