RRB ALP-Levers and Simple Machines

Reduce the mass of an object that needs to be moved ✘ Reduce the distance an object needs to be moved ✘ Reduce the amount of time needed to move an object over a distance ✘ Reduce the force needed to move an object over a Distance ✔

perpendicular to ✘ less than ✘ equal to ✘ greater than ✔

a pulley ✘ a screwdriver ✘ a block and tackle ✘ a nutcracker ✔

a nutcracker ✘ a screw ✘ a hand-held boat paddle ✘ a crow bar ✔

Can-opener ✘ Wheel barrow ✘ Hammer ✘ Tongs ✔

inclined plane, ✘ wheel and axle. ✘ lever, ✘ pulley. ✔

a compound machine made of two second-class levers. ✘ a compound machine made of two third-class levers. ✘ a first -class lever. ✘ a kind of wedge. ✔

First class and second class ✘ pulley and screw ✘ inclined plane and lever ✘ wedge and compound. ✔

input force in the middle. ✘ fulcrum in the middle. ✘ fulcrum at one end and the input force between t & e fulcrum and the output force. ✘ fulcrum at one end and the output force between the fulcrum and the input force. ✔

Effort in the middle ✘ Fulcrum in the middle ✘ Resistance in the middle ✘ None of the mentioned. ✔