Mechanism

Mechanisms are an important …………………….. of everyday life. They allow us to do simple things like switch on lights, turn taps, and open doors.

• part

• system

• partly

• role

Mechanism also make it possible to use ……………….. and lifts, travel in cars, and fly from continent to continent

• 1. motors

• escalators

• insulators

• contacts

Mechanisms provide the …………………. to press steel sheets into car body panel, to lift large component from place to place, to force plastic through die to make pipes.

• 1. processes

• systems

• forces

• things

All mechanisms ………………. Some kind of motion. The four basic kinds of motion are rotary, oscillating, linear and reciprocating.

• 1. resovle

• preserve

• converse

• involve

A ………………. Converts the reciprocating motion of piston into the rotary motion.

• a.     crankshaft

• cam

• drivershaft

• piston

Choosing the right lubricant is essential to reduce ……………..

• 1. cost

• friction

• mass

• weight

Mechanisms deliver the ………………. to do work so they play a vital role industry.

• 1. electricity

• 1. systems

• power

• method

Friction is some thimes a help but it is often a ………………………

• force

• gravity

• bouyancy

• hindrance

Oscillating means …………………..

• swing backwards and forwards

• moving up and down

• going around and around

• going in a line

The foot pump is a class 2 lever since the load is between the effort and the ……………..

• 1. cam

• fulcrums

• 1. crankshaft

• 1. lever