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3 years ago

The useful work potential of energy is called: a. Exergy b. Power c.Equilibrium d. Reversible work

Engineering

1 answer:

tia_tia [17]3 years ago

7 0

Answer:

a) Exergy

Explanation:

The useful work potential is called exergy. All practical process are ir-reversible process due to ir-reversibility ,the entropy of system increases and this leads to destroy the energy.

The rate of work is called power.

Reversible work is the maximum obtain work potential because it have all processes reversible.

So from this our option a is right.

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Answer:

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3 years ago

Read 2 more answers

Mohr's circle represents: A Orientation dependence of normal and shear stresses at a point in mechanical members B The stress di

blsea [12.9K]

Answer:

The correct answer is A : Orientation dependence of normal and shear stresses at a point in mechanical members

Explanation:

Since we know that in a general element of any loaded object the normal and shearing stresses vary in the whole body which can be mathematically represented as

$\sigma _{x'x'}=\frac{\sigma _{xx}+\sigma _{yy}}{2}+\frac{\sigma _{xx}-\sigma _{yy}}{2}cos(2\theta )+\tau _{xy}sin(2\theta )$

And $\tau _{x'x'}=-\frac{\sigma _{xx}-\sigma _{yy}}{2}sin(2\theta )+\tau _{xy}cos(2\theta )$

Mohr's circle is the graphical representation of the variation represented by the above 2 formulae in the general oriented element of a body that is under stresses.

The Mohr circle is graphically displayed in the attached figure.

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3 years ago