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3 years ago

Which type of load is not resisted by a pinned joint? A) Moment B) Shear C) Axial D) Compression

Engineering

1 answer:

nataly862011 [7]3 years ago

5 0

Answer: A) Moment

Explanation:

For a pinned joint support, load are acting either in shear, axial and compression load but not moment.

A pinned joint support allow to circulate the structural member but it is not move in any direction. Pinned joint hold two and more elements together efficiently without any friction connection. That is why, it resist moment load.

It basically transfer vertically and horizontally shear load and cannot resist any moment load. A pinned joint connection work efficiently as lapped joint.

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15. Whether technology is good or bad depends on how it is used.

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Answer:

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Explanation:

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2 years ago

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Describe with an example how corroded structures can lead to environment pollution?

raketka [301]

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3 years ago

Consider a plane composite wall that is composed of two materials of thermal conductivities kA = 0.1 W/m*K and kB = 0.04 W/m*K a

nadya68 [22]

Answer:

q=39.15 W/m²

Explanation:

We know that

Thermal resistance due to conductivity given as

R=L/KA

Thermal resistance due to heat transfer coefficient given as

R=1/hA

Total thermal resistance

$R_{th}=\dfrac{L_A}{AK_A}+\dfrac{L_B}{AK_B}+\dfrac{1}{Ah_1}+\dfrac{1}{Ah_2}+\dfrac{1}{Ah_3}$

Now by putting the values

$R_{th}=\dfrac{0.01}{0.1A}+\dfrac{0.02}{0.04A}+\dfrac{1}{10A}+\dfrac{1}{20A}+\dfrac{1}{0.3A}$

$R_{th}=4.083/A\ K/W$

We know that

Q=ΔT/R

$Q=\dfrac{\Delta T}{R_{th}}$

$Q=A\times \dfrac{200-40}{4.086}$

So heat transfer per unit volume is 39.15 W/m²

q=39.15 W/m²

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3 years ago

Examples of reciprocating motion in daily life

bonufazy [111]

Answer:

Examples of reciprocating motion in daily life are;

1) The needles of a sewing machine

2) Electric powered reciprocating saw blade

3) The motion of a manual tire pump

Explanation:

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In a sewing machine, a crank shaft in between a wheel and the needle transforms the rotary motion of the wheel into reciprocating motion of the needle.

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2 years ago

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3 years ago