What are the actuation methods of brakes?

Engineering

1 answer:

Gnoma [55]2 years ago

6 0

Answer:

1. Mechanically actuated

2. Electrically actuated

3.Pneumatically actuated

Explanation:

The general method of actuation of brakes are as follows:

1. Mechanically actuated

In this method linkages or livers are used to produce the action of brakes.In this mechanical component is used to apply the brakes. Band brakes,shoe brakes etc are the example of mechanical breaks.

2. Electrically actuated

In this method magnetic coil is used to and this magnetic coil produce magnetic field due to this magnetic filed brakes apply.

3.Pneumatically actuated

In this method compressed air is supply from high pressure vessel and this pressurized air apply the break.

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rusak2 [61]

Answer:

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Explanation:

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3 years ago

How high a building could fire hoses effectively spray from the ground? Fire hose pressures are around 1 MPa. (It is also said t

Mrac [35]

Answer:

$z_{2} = 91.640\,m$

Explanation:

The phenomenon can be modelled after the Bernoulli's Principle, in which the sum of heads related to pressure and kinetic energy on ground level is equal to the head related to gravity.

$\frac{P_{1}}{\rho\cdot g} + \frac{v_{1}^{2}}{2\cdot g}= z_{2}+\frac{P_{2}}{\rho\cdot g}$

The velocity of water delivered by the fire hose is:

$v_{1} = \frac{(300\,\frac{gal}{min} )\cdot(\frac{3.785\times 10^{-3}\,m^{3}}{1\,gal} )\cdot(\frac{1\,min}{60\,s} )}{\frac{\pi}{4}\cdot (0.3\,m)^{2}}$

$v_{1} = 0.267\,\frac{m}{s}$

The maximum height is cleared in the Bernoulli's equation:

$z_{2}= \frac{P_{1}-P_{2}}{\rho\cdot g} + \frac{v_{1}^{2}}{2\cdot g}$

$z_{2}= \frac{1\times 10^{6}\,Pa-101.325\times 10^{3}\,Pa}{(1000\,\frac{kg}{m^{3}} )\cdot(9.807\,\frac{m}{s^{2}} )} + \frac{(0.267\,\frac{m}{s} )^{2}}{2\cdot (9.807\,\frac{m}{s^{2}} )}$