Mechanical Engineering Principles

208 MECHANICAL ENGINEERING PRINCIPLES

(c) In a third-order lever, the effort is

applied between the load and the

fulcrum.

(d) The force ratio for a first-order lever

system is given by:

distance of load from fulcrum

distance of effort from fulcrum

12. In a second-order lever system, the load
    is 200 mm from the fulcrum and the
    effort is 500 mm from the fulcrum. If
    losses are neglected, an effort of 100 N
    will raise a load of:

(a) 100 N (b) 250 N (c) 400 N

(d) 40 N