Mechanisms. General revisionOnline version
by Rubén Campos
1
Mechanisms are elements that transmit .................. and movements.
2
Which is the force that we have to apply to raise an object of 300Kg with one pulley?
3
Which is the force that we have to apply to raise an object of 300Kg with a moveable pulley?
4
Which is the force that we have to apply to raise an object of 800Kg with a hoisting tackle composed by six pulleys?
5
Calculate the speed at which the big wheel rotates knowing that the small one rotates at a speed of 10 000rpm and the diameter of the small wheel is 10cm and the big one 50cm
6
If we join one gear of 60 teeth that rotates at 6000 rpm to another gear of 10 teeth. At which speed will it rotate?
7
The rack and pinion mechanism transforms a rotatory movement to a.................... one
8