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3 years ago

What is geometrical shape?

Engineering

2 answers:

MatroZZZ [7]3 years ago

7 0

Explanation:

Geometric Shapes can be defined as figure or area closed by a boundary which is created by combining the specific amount of curves, points, and lines.

Zigmanuir [339]3 years ago

6 0

Answer:

Geometric shapes are mathematical shapes. They are perfect and regular. They are characterized by straight lines, angles and points. An exception to this would be a perfect circle as it has no straight lines or points. Other geometric shapes are squares, rectangles, triangles, parallelograms, hexagons, etc.

Explanation:

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Type the correct answer in the box. Spell all words correctly.

SSSSS [86.1K]

Answer: Type the correct answer in the box. Spell all words correctly.

Which design principle indicates disparity between adjacent parts of a design to give it a striking overall look?

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Explanation:

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2 years ago

Define the Static Balancing.

liubo4ka [24]

Answer: Static Balancing is when a stationary object has the the ability to balance because its core centre of gravity is on the axis of rotation.

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3 years ago

A steel cylindrical pressure vessel has an inside diameter of 2m and a wall thickness of 2cm. If the steel has a yield stress Y

Feliz [49]

Answer:

The pressure that will cause yielding in the tank in the longitudinal direction is 1.7 Mpa

Explanation:

We are dealing with a thin-walled pressure vessel here.

the formula for calculating the hoops stress of this pressure vessel is $\sigma =P d/4t$

$\sigma Y =$ longitudinal yield stress = $425 \times 10^{6} Pa$

Thickness = 2/1000 =0.002m

Outside diameter = inside siameter + thickness = 2m + 0.002m= 2.002m

Dm = Mean diameter = Outside diameter - thickness = 2.002 - 0.002 = 2m

$P= 425 \times 10^{6} \times 4 \times 0.002 /2=1.7 Mpa$

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3 years ago

What is the relationship between permanent modular construction (PMC) and purpose-built construction?

Vitek1552 [10]

Answer:

A. PMC tends to fit the construction purposes for which it was specifically designed.

Explanation:

took the test go it right

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3 years ago

Steam enters an adiabatic turbine at 800 psia and9008F and leaves at a pressure of 40 psia. Determine themaximum amount of work

Naily [24]

Answer:

$w_{out}=319.1\frac{BTU}{lbm}$

Explanation:

Hello,

In this case, for the inlet stream, from the steam table, the specific enthalpy and entropy are:

$h_1=1456.0\frac{BTU}{lbm} \ \ \ s_1=1.6413\frac{BTU}{lbm*R}$

Next, for the liquid-vapor mixture at the outlet stream we need to compute its quality by taking into account that since the turbine is adiabatic, the entropy remains the same:

$s_2=s_1$

Thus, the liquid and liquid-vapor entropies are included to compute the quality:

$x_2=\frac{s_2-s_f}{s_{fg}}=\frac{1.6313-0.39213}{1.28448}=0.965$

Next, we compute the outlet enthalpy by considering the liquid and liquid-vapor enthalpies:

$h_2=h_f+x_2h_f_g=236.14+0.965*933.69=1136.9\frac{BTU}{lbm}$

Then, by using the first law of thermodynamics, the maximum specific work is computed via:

$h_1=w_{out}+h_2\\\\w_{out}=h_1-h_2=1456.0\frac{BTU}{lbm}-1136.9\frac{BTU}{lbm}\\\\w_{out}=319.1\frac{BTU}{lbm}$

Best regards.

3 0

3 years ago

What is geometrical shape?​

What is geometrical shape?