Theory of Machines & Vibrations - 1 - Mechanical Engineering MCQ

A shaft carrying 60 teeth, 1 teeth/mm diameteral pitch gear drives another gear at a speed of 500 rev/min. How fast does the 60 teeth gear rotate if the shaft center distance is 100 mm?

Which of the following mechanism satisfies the four bar linkages shown below?

In the linkage shown below, find the number of instantaneous centre

The Kutzbach criterion for determining the number of degrees of freedom (n) is (where l = number of links, j = number of joints and h = number of higher pairs)

The equation of motion of the washing machine model as shown in the figure is

For high speed engines, the cam follower should move with

A cantilever supports a shaft of 100 mm diameter, 1m long which has a mass 500 kg at the end of the shaft with a radius of gyration 450 mm. The frequency of the torsional vibration is _______ Hz. Take rigidity modulus as 80 GN/m2

Transmission angle is the angle between

According to the Kennedy’s theorem, if the three bodies have relative motion among themselves then their instantaneous centers must lie in

When the slider moves on a fixed link having a curved surface then the instantaneous centre lies at

Six gears are having compound gear train. Gears (2) and (3) are on one shaft. Gear (4) and (5) are on one shaft. The tooth of the Gears 1, 2, 3, 4, 5 and 6 are 30, 60, 40, 20, 30 and 60 respectively. The Train value of the gear train is _________.

In Slider-crank mechanism shown in figure, crank O₂ A rotates at a constant speed of 1000 rpm in clockwise direction. Determine the acceleration of the crank O₂ A when θ₂= 45° . Given that the crank length O₂A = 6cm & rod length AB = 16cm