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Sav [38]
3 years ago
7

WHICH TASK BEST FITS THE ROLE OF A DESIGN ENGINEER ?

Engineering
1 answer:
pshichka [43]3 years ago
5 0

Answer: drafting blueprints

Explanation:

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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}

So

\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}

7 0
3 years ago
__________ is not considered a driving distraction.
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Answer: Focusing on the road

Explanation:

I know it and pls mark me as brainiest

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