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**65) **Which condition is necessary for an object to be in equilibrium?
(A) Algebraic sum of all the horizontal components of forces acting on the object should be zero
(B) Algebraic sum of all the vertical components of forces acting on the object should be zero

**Answer is:**

## A, B and C

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**Answer is:**

### Zero

**Explanation:**

bending moment at end supports of a simply supported beam is **Zero**.

**Answer is:**

### 4

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**69) **A mild steel rod of 25 mm diameter is subjected to tensile load of 1000 kg. Calculate the stress

**Answer is:**