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spayn [35]
3 years ago
15

A material removal process in which a sharp cutting tool is used to mechanically cut away material so that the desired part geom

etry remains is called Machining. a)- True b)-False
Engineering
1 answer:
Anit [1.1K]3 years ago
5 0

Answer: True

Explanation: Machining is a procedure in which a material is given a  desired shape by removing the excess with help of tool sharp enough to cut the material.It is a sort of primary manufacturing process which is carried out in manufacturing sector .There are many removal processes for the work piece such as drilling, turning ,etc.Therefore the given statement in the question is true.

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A fair die is thrown, What is the probability gained if you are told that 4 will
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1/6

Explanation:

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A normal shock wave takes place during the flow of air at a Mach number of 1.8. The static pressure and temperature of the air u
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Answer:

The pressure upstream and downstream of a shock wave are related as

\frac{P_{1}}{P_{o}}=\frac{2\gamma M^{2}-(\gamma -1)}{\gamma +1}

where,

\gamma= Specific Heat ratio of air

M = Mach number upstream

We know that \gamma _{air}=1.4

Applying values we get

\frac{P_{1}}{100kPa}=\frac{2\times 1.4\times 1.8^{2}-(1.4 -1)}{1.4 +1}\\\\\frac{P_{1}}{100kPa}=3.61\\\\\therefore P_{1}=361.33kPa(Absloute)

Similarly the temperature downstream is obtained by the relation

\frac{T_{1}}{T_{o}}=\frac{[2\gamma M^{2}-(\gamma -1)][(\gamma -1)M^{2}+2]}{(\gamma +1)^{2}M^{2}}

Applying values we get

\frac{T_{1}}{423}=\frac{[2\times 1.4\times 1.8^{2}-(1.4-1)][(1.4-1)1.8^{2}+2]}{(1.4+1)^{2}\times 1.8^{2}}\\\\\therefore \frac{T_{1}}{423}=1.53\\\\\therefore T_{1}=647.85K=374.85^{o}C

The Mach number downstream is obtained by the relation

M_{d}^{2}=\frac{(\gamma -1)M^{2}+2}{2\gamma M^{2}-(\gamma -1)}\\\\\therefore M_{d}^{2}=\frac{(1.40-1)\times 1.8^{2}+2}{2\times1.4\times 1.8^{2}-(1.4-1)}\\\\\therefore M_{d}^{2}=0.38\\\\M_{d}=0.616

3 0
4 years ago
A manager who focuses on the employees who enable a company to do business is human resource management. True True False False
nydimaria [60]

Answer:

False.

Explanation:

6 0
3 years ago
Which of the following was an Enlightenment idea that influenced the Founding Fathers?
Leno4ka [110]

Answer:

revolt against what they perceived as unfair British taxation.

Explanation:

4 0
3 years ago
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