Machines should be kept in a clean environment, which is free from dust and moisture. When not in use, machines should be kept covered to prevent collection of dust on them. Machines made of iron should be protected from rust by coating them with paint.
Q. What are the reasons why machines can never be 100% efficient?
Answer: A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine.
Table of Contents
- Q. What are the reasons why machines can never be 100% efficient?
- Q. How can you increase the ideal mechanical advantage of a machine?
- Q. How you can take care of machines write in points?
- Q. How do wedges make work easier?
- Q. Why are wedges useful?
- Q. How do we use wedges in everyday life?
- Q. Is zipper an example of wedge?
- Q. How does Scissor make our work easier?
Q. How can you increase the ideal mechanical advantage of a machine?
1 Answer
- Moving the load closer to the fulcrum will increase the mechanical advantage.
- Moving the effort farther from the fulcrum will increase the mechanical advantage. This may require a longer lever.
Q. How you can take care of machines write in points?
5 Maintenance Tips to Extend Equipment Life and ROI
- Stay on top of large machinery operator training. Many types of large machinery have multiple operators.
- Add and test lubricants frequently.
- Check for signs of wear.
- Keep large machinery clean, and maintain a clean environment.
- Have a maintenance and repair schedule, and keep good records.
Q. How do wedges make work easier?
A wedge makes work easier by increasing the force applied to the object, although it applies the force over a shorter distance. This gives the wedge a mechanical advantage greater than 1.
Q. Why are wedges useful?
Wedges are used to lift heavy objects, separating them from the surface upon which they rest. They can also be used to separate objects, such as blocks of cut stone.
Q. How do we use wedges in everyday life?
Some examples of wedges that are used for separating might be a shovel, a knife, an axe, a pick axe, a saw, a needle, scissors, or an ice pick. But wedges can also hold things together as in the case of a staple, push pins, tack, nail, doorstop, or a shim.
Q. Is zipper an example of wedge?
zipper is a simple machine because it is a wedge … A zipper has two lower wedges that permit it to close and a single upper wedge that allows it to open.
Q. How does Scissor make our work easier?
Simple machines make our lives easier by changing the amount of force or the direction of the force being applied (added). A lever moves around a point to increase or decrease the amount of force. A pair of scissors has two blades connected to a point which helps the scissors to move.
