Online Mechanical Engineering Test - Theory of Machines Test 2
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- Total number of questions: 20.
- Time allotted: 30 minutes.
- Each question carries 1 mark; there are no negative marks.
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Marks : 2/20
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Test Review : View answers and explanation for this test.
In a coupling rod of a locomotive, each of the four pairs is a __________ pair.
The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is
The factor which affects the critical speed of a shaft is
Which of the following is a higher pair?
The distance between the centre of suspension and centre of percussion is equal to the equivalent length of a simple pendulum.
When a point at the end of a link moves with constant angular velocity, its acceleration will have
The unbalanced primary forces in a reciprocating engine are
The lower pairs are __________ pairs.
A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)
The frictional torque transmitted by a disc or plate clutch is same as that of
A watt's governor can work satisfactorily at speeds from
The maximum gyroscopic couple acting on the ship tends to shear the holding down bolts.
For the isochronous Porter governor, the controlling force curve is a straight line passing through the origin.
When no external force acts on a body, after giving it an initial displacement, the body is said to have free vibrations.
A shaft of mass (mc)and stiffness (s) is fixed at one end and carries a mass (m) at the other end. The natural frequency of its transverse vibration is same as for longitudinal vibration.
When the connection between the elements forming a pair is such that the constrained motion is not completed by itself, but by some other means, the motion is said to be a completely constrained motion,
A sliding pair has a completely constrained motion.
A pair is said to be a kinematic pair, if the relative motion between them is completely or successfully constrained.
When a point moves along a straight line, its acceleration will have
The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r1 and r2 = External and internal radii of collar respectively)
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