The distance from first to the second floor is 450 cm and the average person's mass is 65 kg. On the average, the escalator carries a steady load of 30 people per minute. Caluclate the mechanical effciency (%) of the system if the motor which drives the escalator delivers 1.5 kW. The distance from first to the second floor is 450 cm andthe average person's mass is 65 kg. On the average, theescalator carries a steady load of 30 people per minute.Calculate the mechanical efficiency (%) of the system if themotor which drives the escalator delivers 1.5 kW.450 ст

Solution:- Net power required, Net power=Mass×height×capacitytime(s) =65×4.5×3060…

The distance from first to the second floor is 450 cm and the average person's mass is 65 kg. On the average, the escalator carries a steady load of 30 people per minute. Calculate the mechanical efficiency (%) of the system if the motor which drives the escalator delivers 1.5 kW. 450 ст

The distance from first to the second floor is 450 cm and the average person's mass is 65 kg. On the average, the escalator carries a steady load of 30 people per minute. Calculate the mechanical efficiency (%) of the system if the motor which drives the escalator delivers 1.5 kW. 450 ст

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Stair construction and layout

Stair is a type of vertical transportation in a building which consist of a series of steps in a flight of stairs that enable the vertical movement of people and materials from one floor to another. A staircase consists of steps that comprises of riser & tread, handrail, baluster, stair stringers, newel post and waist slab. The construction of staircase with all the components is termed as stair construction. A staircase is an enclosure that contains the entire stairway. The materials used for the construction of stairs are bricks, reinforced cement concrete, stone, lumber, steel and a combination of these materials.

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The distance from first to the second floor is 450 cm and the average person's mass is 65 kg. On the average, the escalator carries a steady load of 30 people per minute. Caluclate the mechanical effciency (%) of the system if the motor which drives the escalator delivers 1.5 kW.

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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