Question

: Built-in beam of length 6 m was loaded with two concentrated loads 20kN at point (B) 2m from left support (A) and 40kN at point (C) 2m from right support (D), and triangular load start from point (B) 0kN/m to point (D) 24kN/m.

If E=200GN/m2
I= 0.000001m4
Determine:
1. The reactions and fixing moments
2. Slope and deflection at point (C)​

Answer 1

Only option a and the option b follows the first law of thermodynamics.

Step-by-step explanation:

As we know that the first law of thermodynamics tells the conservation of energy, that is why it is also called quantitative law.

From the first law of thermodynamics

`Q=\Delta E+W`

a. Given that

W= 50 KJ,Q = 170KJ ,ΔE = 120 KJ

Yes, this follows the first law of thermodynamics.

b. Given that

W= 100 Btu,Q= -110 Btu ,ΔE= -210 Btu

This also satisfy the first law of thermodynamics.

c. Given that

W= 250 KJ,Q= -110 KJ ,ΔE=-100 KJ

Yes this does not follow the first law of thermodynamics.

d. Given that

Yes, this does not follow the first law of thermodynamics.