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Which of the following can be moved along the length of the bridge?

Which of the following can be moved along the length of the bridge? Correct Answer Hoist Trolley

Hoist Trolley can be moved along the length of the building. At the same time, the bridge can also be moved the length of the rails in the building. These two moving capabilities provide x and y axes of the building.

Related Questions

When we compare the half bridge converter and full bridge converter 1. The maximum collector current of a full bridge is only double that of the half bridge 2. Full bridge uses 4-power switches instead of 2, as in the double bridge. 3. Output power of a full bridge is twice that of a half bridge with the same input voltage and current. When of the above statements are correct?
Four friends A, B, C and D need to cross a bridge. A maximum two persons can cross it at a time. It is night and they just have one lamp. Persons that cross the bridge must carry the lamp to find the way. A pair must walk together at the speed of slower person. After crossing the bridge, the person having faster speed in the pair will return with the lamp each time to accompany another person in the group. Finally, the lamp has to be returned at the original place and the person who returns the lamp has to cross the bridge again without lamp. To cross the bridge, the time taken by them is as follows: A :1 minute, B : 2 minutes, C : 7 minutes and D : 10 minutes. What is the total minimum time required by all the friends to cross the bridge?
A boat is on the one side of a bridge and the other boat is on the other side of the bridge. The bridge is 36 meter above the river surface. The angles of depression of both the boats from the bridge point on the bridge are complementary to each other and the angle of depression of first boat from the bridge is tan-1(1/3), then what is the distance between both the boats?
A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ?
A local train of length 250 m should cover a distance of 100 km. There is a bridge of length ‘x’ in the journey where the maximum speed should not exceed 25 km/hr.The train used to go at a speed of 75km/hr at other places and 15 km/hr on the bridge. Due to fog, one day its speed reduced by 15 km/hr in other places. Even by travelling at 80% of the maximum speed on the bridge, it was 25 min late. How much time will the train take to cross the bridge usually (in minutes)?
A rider is riding his bike along the sides of a square ground. He drives the bike with the speed of 10 km/h along one side, 15 km/h along another side, 18 km/h along the third side, and 20 km/h along the last side and reaches the starting point. What is the average speed of the bike along the sides of the ground?
E and F are instructed to construct a bridge. E alone can construct the bridge in 100 days. If E and F work together, they can complete the bridge in 60 days. In how many days can F alone construct the bridge? 
A train of length 400 m is crossing a river bridge with the speed of 10 m / sec and a boat is also crossing the river, which is just below the bridge. The length of the bridge is 200 m and the length of the boat is 20 m, what should be the speed of the boat so that both will reach to the other side of the river at the same time (consider the boat is travelling in still water)?
A train passes a pole in 20 seconds and a bridge in 60 seconds. What is the length of the bridge, if the length of the bridge is 50 m more than the length of the train?
A balloon is directly above one end of a bridge. The angle of depression of the other end of the bridge form the balloon is 48°. If the height of the balloon above the bridge is 122 m, then what is the length of the bridge?