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4 years ago

The pressure intensity at a point in a fluid is equal in all directions a.true b.false

Engineering

1 answer:

KIM [24]4 years ago

8 0

Answer:

True

Explanation:

The pressure intensity in a fluid equals in all direction, states Pascal's law. The pressure are forces on the side faces of an element. Transmission of fluid is defined by the pressure exerted on it. The pressure intensity at a point is point where pressure is applied. The fluid is equal in all directions.

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a poorly tighten terminal is often the cause of a/an ? a) open circuit b) circuit breaker interrupt c)short circuit d) ground fa

Tema [17]

Answer: b) circuit breaker interrupt

Explanation:

Wires connect to outlets through terminals and these terminals need to be tight to ensure that electricity flows with the minimum amount of resistance.

If the terminal is poorly tightened, what happens is that resistance will build up as the appliance is being used and this resistance will make the terminal hotter.

The heat will continue to rise until the circuit breaker trips to interrupt the circuit and protect the appliance.

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3 years ago

Steam enters an insulated turbine at 100 bar, 400oC. At the exit, the pressure and quality are 200 kPa and 0.47, respectively. D

OverLord2011 [107]

Answer:

power produced = 3098.52 kW

Explanation:

given data

insulated turbine = 100 bar

temperature = 400°C

pressure = 200 kPa

mass flow rate = 1.99 kg/s

solution

we use here steam table for At 100 bar and 400°C

h1 = 3096.5 KJ/Kg

and

at P2 = 200 Kpa

h2 = hf + 0.47 hg

h2 = 504.7 + 0.47 × 2201.6

h2 = 1539.452 KJ/Kg

so here

power produced is express as

power produced = m × (h1 - h2) .................1

power produced = 1.99 × ( 3096.5 - 1539.452 )

power produced = 3098.52 kW

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3 years ago

What is the name given to the vehicles that warn motorists about oversized loads/vehicles?

anastassius [24]

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3 years ago

Description: An apartment building has a pumped ring main that circulates hot water at 75 C through insulated 40 mm pipe with he

Ratling [72]

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Explanation:

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3 years ago

A heat engine uses fuel of energy content 43.1 MJ/kg and produces 17.4 kW of useful power. The heat rejection rate (through the

solmaris [256]

Answer:

a)27.9%

b) $\dot{m}=3.06 \frac{Kg}{h}$

Explanation:

Given that

Fuel energy content = 73.1 MJ/kg

Useful power = 17.4 KW

Heat rejection rate = 44.8 KW

From first law of thermodynamics

Heat addition rate =Heat rejection rate + Power out put

Now by putting the values in the above formula

Heat addition rate = 44.8 + 17.4

Heat addition rate =62.2 KW

We know that efficiency is given as follows

$\eta =\dfrac{power\ out\ put}{Heat\ addition\ rate}$

$\eta =\dfrac{17.4}{62.2}$

$\eta =0.279$

So the efficiency is 27.9%.

Now to find usage rate of fuel

Lets take usage rate is $\dot{m}$

Fuel energy content x usage rate of fuel = Heat addition rate

Now by putting the values

$73100\times \dfrac{\dot{m}}{3600}=62.2$

$\dot{m}=3.06 \frac{Kg}{h}$

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3 years ago

The pressure intensity at a point in a fluid is equal in all directions a.true b.false​

The pressure intensity at a point in a fluid is equal in all directions a.true b.false