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3 years ago

How would you expect an increase in the austenite grain size to affect the hardenability of a steel alloy? Why?

Engineering

1 answer:

seraphim [82]3 years ago

3 0

Answer:

The hardenability increases with increasing austenite grain size, because the grain boundary area is decreasing. This means that the sites for the nucleation of ferrite and pearlite are being reduced in number, with the result that these transformations are slowed down, and the hardenability is therefore increased.

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The ________ is the part of the drill press that holds and rotates the cutting tool.

lana66690 [7]

Answer:

Spindle

Explanation:

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3 years ago

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2. Explain advantages and disadvantages of computer.<br>Each five.

Salsk061 [2.6K]

Answer:

Hope it helps...

Explanation:

-the main advantages and benefits you'll get from using a computer.

Increase your productivity. ...

Connects you to the Internet. ...

Can store vast amounts of information and reduce waste. ...

Helps sort, organize, and search through information. ...

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the disadvantages to using a computer and what type of problems you may personally encounter.

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3 years ago

This is just so I can flip the picture

Pepsi [2]

Answer:

Explanation:

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3 years ago

An engine cylinder has a stroke of 320mm and bore 280MM. Calculate the mass of air contained in the cylinder if it is filled wit

belka [17]

Answer:

The mass of the air is 0.0243 kg.

Explanation:

Step1

Given:

Stroke of the cylinder is 320 mm.

Bore of the cylinder is 280 mm.

Pressure of the air is 101.3 kpa.

Temperature of the air is 13°C.

Step2

Calculation:

Stroke volume of the cylinder is calculated as follows:

$V=\frac{\pi }{4}d^{2}L$

$V=\frac{\pi}{4}\times(\frac{280}{1000})^{2}\times(\frac{320}{1000})$

V = 0.0197 m³.

Step3

Assume air an ideal gas with gas constant 287 j/kgK. Then apply ideal gas equation for mass of the air as follows:

PV=mRT

$m=\frac{PV}{RT}$

$m=\frac{101.3\times 1000\times 0.0197}{287\times (13+273)}$

m= 0.0243 kg.

Thus, the mass of the air is 0.0243 kg.

4 0

3 years ago

The east-west row planting orientation is preferred to maximize light absorption of

Katyanochek1 [597]

Answer: True

Explanation:

The east-west row planting orientation helps in the maximize the light absorption by plants which then brings about an efficient photosynthesis activity.

Also, it helps in the shading of weeds that can be found in the inter-row space. Also, it brings about an improvement on drop yield crop yield.

Therefore, the answer to the above is true.

8 0

3 years ago