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TEA [102]
2 years ago
15

Technician A says automotive gasoline engines run on the 2 stroke principal. Technician B says Diesel engine hace less compressi

on than a gasoline engine. Who is correct?
Engineering
1 answer:
d1i1m1o1n [39]2 years ago
3 0

Answer:

both are incorect

Explanation:

2 stroke principal is a mix of gasoline and engine oil a normal gasoline engine does not run on 2 stroke fuel

technician B is also wrong Diesel engines generally generate much higher compersion than gasoline engines

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A silicon diode has a saturation current of 6 nA at 25 degrees Celcius. What is the saturation current at 100 degrees Celsius?
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Answer:

0.0659 A

Explanation:

Given that :

I_{0}  =  6nA ( saturation current )

at 25°c = 300 k ( room temperature )

n = 2  for silicon diode

Determine the saturation current at 100 degrees = 373 k

Diode equation at room temperature = I = Io \frac{V}{e^{0.025*n} }

next we have to determine the value of V at 373 k

q / kT = (1.6 * 10^-19) / (1.38 * 10^-23 * 373) = 31.08 V^-1

Given that I is constant

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3 years ago
Pedro holds a heavy science book over his head for 10 minutes. Petro is doing work during that time. True or False
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Answer:

True because he is working his arms to lift and hold the weight

Explanation:

4 0
3 years ago
State the mathematical expression to define the availability of equipment over a specified time and operational availability?
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Answer:

Availability=\dfrac{Up\ time}{Down\ time+Up\ time}

Explanation:

Availability:

  It define as the probability of system which perform desired task before showing any failure .

The availability can be define as follows

 Availability=\dfrac{Up\ time}{Down\ time+Up\ time}

Or we can say that

Availability=\dfrac{Up\ time}{total\ time}

Availability can also be express as

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Where MTBF is the mean time between two failure.

MTTR is the mean time to repair.

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