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egoroff_w [7]
2 years ago
6

Kaya just bought a house and realizes that the chimney needs to be totally torn down and rebuilt. She needs to call an expert si

nce she cannot do that work herself. What is the name of the expert that Kaya needs to call?
apprentice


bricklayer


contractor


engineer
Engineering
1 answer:
lisabon 2012 [21]2 years ago
3 0

a bricklayer, a bricklayer builds houses repairs walls and chimneys etc.

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The question is asking whether that statement is true or false. Options are;

A) True

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This is about usage of Swing arm restraints.

<em><u>B) False</u></em>

There are different safety features that people employ when a vehicle is lifted. However, for this question, we will only talk about swing arm restraints.

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Explanation:

Outer di ameter d_{0}=400 \mathrm{mm}[tex] Thickness of the cylinder [tex]t=10 \mathrm{mm}

\therefore[tex] Inner diam eter [tex]d_{i}=d_{0}-2 t=400-2 \times 10

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Given loading on the cylinder P=300 \mathrm{kN} Helix an gle of the weld form \theta=20^{\circ}

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\sigma=\frac{P \cos ^{2} \theta}{A_{0}}

\text { Where } A_{0}=\frac{\pi}{4}\left(d_{0}^{2}-d_{1}^{2}\right)

\quad=\frac{\pi}{4}\left(400^{2}-380^{2}\right)

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=12.25221 \times 10^{-9} \mathrm{m}^{2}

\sigma=\frac{-300 \times 10^{2} \times \cos ^{2} 20}{12.25221 \times 10^{-1}}

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(ii) Shear stress along an angle of \theta=20^{\circ} is \tau=\frac{P}{A_{0}} \cos \theta \sin \theta

=\frac{-300 \times 10^{-1} \times \cos 20 \times \sin 20}{12.25221 \times 10^{-3}}

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What standard feature is on all circular saws?

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