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3 years ago

Which of the following is not part of a connecting

Engineering

1 answer:

andre [41]3 years ago

6 0

B - Lobe

Explanation:

I believe a connecting rod has a cap, bushing and I-beam whereas a lobe would be found on a camshaft

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5 kg of a wet steam has a volume of 2 m3

Verizon [17]

Have you seen the state of her body. Mad. If I wear it I ain’t wearing a jolly. ADEOLA wanna ride in the gysa

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3 years ago

Liquid water enters an adiabatic piping system at 15°C at a rate of 8kg/s. If the water temperature rises by 0.2°C during flow d

Gennadij [26K]

Answer:

23 W/K

Explanation:

Entropy of water at 15°C is 224.5 J/kg/K.

Entropy of water at 15.2°C is approximately 227.4 J/kg/K (interpolated).

The increase in entropy is therefore:

227.4 J/kg/K − 224.5 J/kg/K = 2.9 J/kg/K.

So the rate of entropy generation is:

2.9 J/kg/K × 8 kg/s = 23.2 W/K

Rounded to two significant figures, the rate is 23 W/K.

3 0

3 years ago

Determine whether or not each of the following signals is periodic.

Sloan [31]

Answer:

a) periodic (N = 1)

b) not periodic

c) not periodic

d) periodic (N = 8)

e) periodic (N = 16)

Explanation:

For function to be a periodic: f(n) = f(n+N)

$a) x[n]=sin(\frac{8\pi}{2}n+1)\\\\sin(\frac{8\pi}{2}n+1)=sin(4\pi n+1)$

It is periodic with fundamental period N = 1

$b) x[n]=cos(\frac{n}{8} -\pi)\\\\\frac{1}{8} N=2\pi k$

N must be integer. So it is nor periodic

$c) x[n]=cos(\frac{\pi}{8} n^2)\\\\cos(\frac{\pi}{8} (n+N)^2)=cos(\frac{\pi}{8} (n^2+N^2+2nN)\\\\N^2 = 16 \:\:or\:\:2nN=16$

Since N is dependent to n. So it is not periodic.

$d) x[n]=cos(\frac{\pi }{2} n) cos(\frac{\pi }{4} n)\\\\x[n] = \frac{1}{2} cos(\frac{3\pi }{4} n) + \frac{1}{2} cos(\frac{\pi }{4} n)\\\\N_1=8\:\:and\:\:N_2=8\\$

So it is periodic with fundamental period N = 8.

$e) x[n]=2cos(\frac{\pi }{4} n)+sin(\frac{\pi }{8} n)-2cos(\frac{\pi }{2} n+\frac{\pi }{6} )\\\\N_1=8\:\:and\:\:N_2=16\:\:and\:\:N_3=4$

So it is periodic with N = 16.

3 0

3 years ago

Which of the following statements about pitot-static systems is FALSE? a). A pitot probe measures the Total Pressure of the free

Pavlova-9 [17]

Answer:

Explanation:

Pitot tube:

Pitot tube is a device which is used to measure the velocity of flow by measuring pressure difference between the points.

As we know that stagnation pressure is the summation of dynamic and static pressure.

Stagnation pressure = Static pressure + Dynamic pressure

Dynamic pressure = Stagnation pressure - Static pressure

We know that dynamic pressure

$P_{dynamic}=\dfrac{\rho V^2}{2}$

On the other hand Pitot tube measure the dynamic pressure.

So option C is correct.

5 0

3 years ago

Which of the following statements about cylinder placement are true?

Alenkinab [10]

What is the following?

3 0

3 years ago