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Directions to Solve

Find the correctly spelt words.

Q1: (solve as per the direction given above)

A Licentious

B Swelte

C Puessile

D Filpant

Q2: The acceleration of the particle moving with simple harmonic motion is inversely proportional to the displacement of the particle from the mean position.

A Yes

B No

Q3: In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is

A greater than 2

B equal to one

C less than 2

D equal to 2

Q4: The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω1 rad/s in the clockwise direction and the link OB turns with angular velocity ω2 rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O)

A ω1.ω2.r

B ( ω1 - ω2)2r

C ( ω1 + ω2)r

D ( ω1 - ω2)r

Q5: If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

A 1.5

B 2

C 0.5

D 1

Q6: A disturbing mass m1 attached to the rotating shaft may be balanced by a single mass m2 attached in the same plane of rotation as that of m1, such that (where r1 and r2 are the radii of rotation of m1 and m2 respectively)

A m1r2 = m2r1

B none of these

C m1m2 = r1r2

D m1r1 = m2r2

Q7: In railway axle boxes, the bearing used is

A deep groove ball bearing

B double row self-aligning ball bearing

C double row spherical roller bearing

D cylindrical roller bearing

Q8: When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a

A higher pair

B force-closed pair

C lower pair

D self-closed pair

Q9: The centre distance between two meshing involute gears is equal to

A

B

C

D

Q10: The two elements of a pair are said to form a __________ when they permit relative motion between them.

A kinematic pair

B open pair