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To increase the velocity ratio of a single purchase crab, you can change the diameter of the drive wheel or adjust the number of strands supporting the load. Increasing the diameter of the drive wheel will increase the velocity ratio, while adding more strands supporting the load will also enhance the mechanical advantage and thus the velocity ratio of the system.

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What are the minimum changes in set up to increase velocity ratio of single purchase crab?

To increase the velocity ratio of a single purchase crab winch, you can either increase the diameter of the drum or decrease the diameter of the driving sheave. Another option is to increase the number of wraps of the rope on the drum to create more friction and improve the mechanical advantage.


What Minimum change in set up to increase velocity ratio of single purchase crab?

To increase the velocity ratio of a single purchase crab mechanism, you can change the ratio of the radii of the drum that the rope wraps around and the radii of the axle around which the crab rotates. By increasing the radius of the drum relative to the axle, you can increase the velocity ratio. This can be achieved by either increasing the diameter of the drum or decreasing the diameter of the axle.


What must be the minimum velocity of a missile if it is to strike a target 100 meters away?

The minimum velocity of the missile would depend on the time it takes for the missile to reach the target. If the missile travels 100 meters in 1 second, then the minimum velocity would be 100 m/s.


What is the minimum steam velocity necessary to carry all siazes of sediments?

The minimum steam velocity necessary to carry all sizes of sediments is called the critical velocity. This velocity is influenced by factors such as sediment size, shape, and density. In general, a higher velocity is required to transport larger and denser sediments.


What does the term 'escape velocity' mean?

Escape velocity is the minimum velocity needed for an object to break free from the gravitational pull of a celestial body, such as a planet or moon. It allows an object to overcome gravity and travel into space without being pulled back. The specific escape velocity depends on the mass and radius of the celestial body.

Related Questions

What are the minimum changes in set up to increase velocity ratio of single purchase crab?

To increase the velocity ratio of a single purchase crab winch, you can either increase the diameter of the drum or decrease the diameter of the driving sheave. Another option is to increase the number of wraps of the rope on the drum to create more friction and improve the mechanical advantage.


What Minimum change in set up to increase velocity ratio of single purchase crab?

To increase the velocity ratio of a single purchase crab mechanism, you can change the ratio of the radii of the drum that the rope wraps around and the radii of the axle around which the crab rotates. By increasing the radius of the drum relative to the axle, you can increase the velocity ratio. This can be achieved by either increasing the diameter of the drum or decreasing the diameter of the axle.


Why two spurs and two pinions are provided in double purchase crab?

In double Purchase crab machine, If it is required to increase V.R of the machine, What minimum changes are to be made?


Why Two spurs and Two pinions are provided in Double Purchase Crab Machine?

In double Purchase crab machine, If it is required to increase V.R of the machine, What minimum changes are to be made?


What must be the minimum velocity of a missile if it is to strike a target 100 meters away?

The minimum velocity of the missile would depend on the time it takes for the missile to reach the target. If the missile travels 100 meters in 1 second, then the minimum velocity would be 100 m/s.


What is the minimum steam velocity necessary to carry all siazes of sediments?

The minimum steam velocity necessary to carry all sizes of sediments is called the critical velocity. This velocity is influenced by factors such as sediment size, shape, and density. In general, a higher velocity is required to transport larger and denser sediments.


What is the approximate minimum stream velocity needed to keep a particle in motiob that has a diameter of 10 cm?

The approximate minimum stream velocity needed to keep a particle in motion, such as a sphere with a diameter of 10 cm, can be estimated using Stokes' law and the concept of terminal velocity. For a particle in a fluid, the minimum velocity needed to keep it suspended typically equals the settling velocity, which depends on factors like fluid density and viscosity. In general, for a 10 cm diameter particle, the minimum velocity can range from about 0.1 to 0.5 meters per second, depending on the specific fluid properties.


What does the term 'escape velocity' mean?

Escape velocity is the minimum velocity needed for an object to break free from the gravitational pull of a celestial body, such as a planet or moon. It allows an object to overcome gravity and travel into space without being pulled back. The specific escape velocity depends on the mass and radius of the celestial body.


What is the minimum amount of interest that can be charged for the purchase of a House?

There is no requirement to have a loan to purchase a house, therefore the minimum amount on interest would be zero.


At what ocean depth do sound waves reach their minimum velocity?

About 1000 meters


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What is the approximate minimum stream velocity needed to keep a particle in motion that has a diameter of 10 centimeters?

The minimum stream velocity needed to keep a particle in motion can be estimated using the settling velocity equation. For a 10 cm diameter particle, the approximate minimum stream velocity would need to be around 0.03 m/s to keep it in motion. This value may vary depending on factors such as particle density and fluid properties.