In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is_____________________?

Related Mcqs:

A rod AB carries three loads of 30 N, 70 N and 100 N at distances of 20 mm, 90 mm and 150 mm respectively from A. Neglecting the weight of the rod, the point at which the rod will balance is_______________?

A. 109.5 mm from A B. 119.5 mm from A C. 125.5 mm from A D. 132.5 mm from A...

If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________?

A. proportional to A B. proportional to A2 C. proportional to 1/A2 D. independent of A...

The diagram showing the point of application and line of action of forces in their plane is called____________________?

A. vector diagram B. space diagram C. force diagram D. funicular diagram...

A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2 A, the energy becomes____________________?

A. E B. E/2 C. 2E D. 4E...

A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?

A. 60 N B. 80 N C. 100 N D. 120 N...