The velocity ratio of a machine is 5 and its efficiency is 75%. What effort would be needed to lift a load of 150N with the machine?

A handbag containing some load weighing 162N is carried by two students each holding the handle of the bag next to him. If each handle is pulled \(60^\circ\)...

If current flows in the direction of the arrows in the solenoid above, the north pole is at

The correct position for a fuse in the diagram above is

An engineer intends to deviate a light ray from its path by 120o through reflection from a plane mirror. Calculate the angle of incidence

In the diagram above, the values of V1 and V2 are respectively

In the a.c circuit above, the current value is

A transverse wave is applied to a string whose mass per unit length is 3 x 10-2kgm-1. If the string is under a tension 12N, the speed of the propagation of t...

The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content...