wooden sleepers are kept because the weight of train is balanced and distance between tracks same.
Railway lines (tracks) are laid down on a bed of evenly spaced sleeps. The sleepers are usually of creosoted heavy timber, though concrete is often used instead of wood. The sleepers kept the rail tracks from moving and causing a train to derail.
to have a balance to both the lines ,so that the train can start ,run and stop easily
Wooden sleepers are placed below railway tracks to provide support and stability to the rails. They help distribute the weight of trains, maintaining proper alignment and preventing deformation of the track. Additionally, wooden sleepers absorb vibrations and reduce noise, contributing to a smoother ride and extending the lifespan of the railway infrastructure. Their durability and ability to resist environmental factors make them a common choice in railway construction.
Yes, the noun 'aviary' is a concrete noun, a word for an enclosure in which birds are kept; a word for a physical thing.
The width apart of rail tracks are set to the gauge of the trains and carriages that are allowed to run on those tracks. They are kept in position by wooden sleepers, though concrete sleepers are often used nowadays.
The large surface spreads the weight of the train (and tracks) over a broader area. The shape of the sleepers also helps to keep them firmly in place while trains are running on the tracks.
they are well spaced because it is to save money
Stones, known as track ballast, are placed between railway tracks to provide stability and support for the sleepers (the wooden or concrete beams that hold the rails). They help distribute the weight of the trains, prevent track shifting due to vibrations, and allow for proper drainage of water. Additionally, ballast helps to maintain the alignment of the tracks, ensuring safe and efficient train movement.
In case of long haul involved in delivering ready-mixed concrete to the site of work, concrete is mixed intermittently to reduce the bad effect of continuous mixing. A pertinentpoint to note in this connection is that when the concrete is mixed or agitated from time to time with a short interval, the normal rule of initial setting time is not becoming applicable.The concrete that is kept in agitation, does not exactly follow the setting time rule as applicable to concrete kept in an unagitated and quiescent condition.workability is the ease and homogenity with which the concrete can be mixed , transported , poured , consolidated and finishedThe more the water cement ratio the more workable the concrete will be , but it does not mean that we should keep on increasing water cement ratio because it will decrease the strength and will cause bleeding and segregation of concrete 08ce69 quaid e awam university nawabshah
New concrete should typically be kept dry for at least the first 24 to 48 hours after pouring to allow for proper curing. However, it's essential to maintain moisture for a longer period—ideally, up to 7 days—for optimal strength development. During this time, you can cover the concrete with wet burlap, plastic sheeting, or use curing compounds to prevent premature drying. Proper curing is crucial for achieving the desired durability and performance of the concrete.
Railway tracks are laid on large sized wooden sleepers so that the thrust due to the weight of train is spread over large area .This reduces the pressure on the ground which would prevent the yielding of the ground
It depends on the food. But food and safety laws state dairy should be kept at 40F or below.