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How is pre-stressed concrete made?
Pre-stressed concrete is made by using,high strength steel bars(tendons).normal concrete(>M25)sheaths for cable duct.anchors.jacks.
Could i hang from a power line?
Yes, that is exactly the way they service high-tension lines: they are deposited from helicopters, attach themselves directly to the power line and work from there! As long as they do not touch another line or anything that is "grounded" (connected to earth), they are fine, as they do not form a "circuit". ================================= Linemen are not 'deposited from helicopters'. They are lifted from the ground in the 'bucket' of a so-called 'cherry picker' truck, insulated from the ground by its tires. A ring of warning cones is placed around the truck, and man-carrying bucket is then attached to the line. At that point, the bucket, the man, and the truck are all at the voltage on the line. The man in the bucket may safely handle the line, and nobody has a problem unless he happens to be walking by on the ground and decides to catch hold of the truck.,
How calculate the motor rating for hoist respected to tonnage?
hp or power is torque/time (rotating motor) 3000# can be lifted 10' in a minute with 1Hp 30,000# can be lifted 1' in a minute with 1Hp 1000 tons can be lifted 1' in an hour with 1 hp
What is a synonym for erected?
upraised, raised, reared, elevated, lifted
How do you pour concrete on a slope?
The area to be concreted is sectioned off is small section across and up the incline. The hardcore base is fully compacted to prevent movement. The mix is made and is put into each section and allowed to go off before removing the horizontal board at the bottom of the concreted section. In most cases an additive is used to make the mix set quicker than normal thus preventing running. In the case of large areas (i.e. sides of roads, etc.) they actually used a preset slab which is lifted into place and has expansion joins inset to cope with heat changes in the concrete.
What are the ratings and certificates for Lifted - 2010?
Lifted - 2010 is rated/received certificates of: USA:PG-13 (certificate #45877)
What type of simple machine is the bucket of a wheelbarrow?
The bucket of a wheelbarrow is a type of lever, specifically a second-class lever. When you lift the handles, the bucket pivots around the wheel axle as the load is lifted, making it easier to transport heavy objects.
How much work is required to lift a bucket of water from a well?
The work required to lift a bucket of water from a well is calculated using the formula ( W = F \times d ), where ( W ) is work, ( F ) is the force needed to lift the bucket (equal to its weight), and ( d ) is the distance lifted. If the bucket weighs, for example, 10 kg, the force would be approximately 98 Newtons (10 kg × 9.8 m/s²). If the well is 5 meters deep, the work done would be ( 98 , \text{N} \times 5 , \text{m} = 490 , \text{Joules} ). Thus, the total work depends on the weight of the bucket and the depth of the well.
What kind of energy conversion takes place in a falling bucket?
In a falling bucket, potential energy is converted into kinetic energy as it descends due to gravity. The higher the bucket is lifted, the greater the potential energy it possesses, which is then converted into kinetic energy as it falls.
How much work is required to lift a 3.7kg concrete block to a height of 2.2 m?
The work required to lift the concrete block can be calculated using the formula: Work = force x distance. First, you need to calculate the force required to lift the block, which is equal to the weight of the block multiplied by the acceleration due to gravity (9.81 m/s^2). Then, multiply the force by the distance lifted (2.2 m) to find the work done.
How do you get a A-3 restriction lifted from your CDL in NY?
Have the required medical exam and take the test results to DMV.
How much work is required to lift a 4.8 kg concrete block to a height of 1.7 m?
The work done in lifting the concrete block can be calculated using the formula: work = force x distance. Since the force required to lift the block is equal to its weight (mg), the work done is equal to the weight of the block multiplied by the height it is lifted (W = mgh). Plugging in the values given (m = 4.8 kg, g = 9.8 m/s^2, and h = 1.7 m) will give the work required in joules.
What force is required to lift something on a pulley?
The force required to lift an object using a pulley system depends on the weight of the object being lifted. The force needed is equal to the weight of the object being lifted plus the force required to overcome any friction in the pulley system. The mechanical advantage provided by the pulley system can help reduce the amount of force needed to lift the object.
How is pre-stressed concrete made?
Pre-stressed concrete is made by using,high strength steel bars(tendons).normal concrete(>M25)sheaths for cable duct.anchors.jacks.
Which Soviet tank had to raise its gun to reload?
In modern times, the t80 and t90 both require its barrel lifted the t34 also required it
What is law of machine in single purchase crab?
The law of machine in single purchase crab can be described by the relationship between the effort required and the load lifted.
How do you get water out of your baby pool?
When we had a baby pool, we carefully lifted the side of the pool and dumped it into the yard. If the side was too heavy to lift enough to begin draining, we could use a bucket to remove some of the water weight first.
