Question

E
11. The diagram shows a single pulley system when a load of 20 kgf
is attached to it.
Answer the following questions by choosing the correct answer
from the options given below:
(i) What is the velocity ratio of the pulley system?
(B) 2
(D) 4
(A) 1
(C) ​

Answer 1

Answer:

The answer is

The answer is (B) 2

Explanation:

Velocity Ratio = = = 2.1. If a pulley system is perfectly efficient the mechanical advantage and the velocity ratio are both equal to the number of pulleys.

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Answer 2

The diagram shows a single pulley system to which a load of 20 kgf is attached:

Pulley A is a single moving pulley and B is a single continuous pulley.

Pulley B is a single-phase pulley.

Its purpose is to change the direction of the effort used.

The effort at C is equal to the load.

This is because B is a single pulley and its mechanical gain is 1.

So, we have. M.A. = L / E = 1. ∴ E = L = 20 kgf.

(A) 1 Correct answer.

pulley system speed:

This means that the average speed of our pulley system is 1.

However, if the pulley is 100% working and the speed limit is 1 then the machine gain is also 1 and that means the load and effort are the same.

Several types of pulley formulas include the following - Equipment benefit - Load / Effort.

Velocity ratio - Refers to the distance traveled in the effort of the distance traveled.

Therefore, average speed = distance (effort) / distance (load).

Pulleys Applications.

Next is the use of Pulley - It works as a basic technology that works behind the elevator.