Shear Stress And Bending Stress(Mechanics Of Materials ) Questions and Answers
Question 1. Find the modulus of section of square beam of size 150 × 150 mm?
654.5 m³
550.85 m³
562.5 m³
586.9 m³
Explanation:-
Answer: Option C. -> 562.5 m³ Answer: (c).562.5 m³
Question 2. Find the moment of inertia about centroid axis of a triangular section are having base 100 mm and height 150 mm.
9.21×10⁶ mm⁴
9.45×10⁶ mm⁴
9.37×10⁶ mm⁴
8.51×10⁶ mm⁴
Explanation:-
Answer: Option C. -> 9.37×10⁶ mm⁴ Answer: (c).9.37×10⁶ mm⁴
Question 3. A rectangular beam of 500 mm wide is subjected to maximum shear force of 250kN, the corresponding maximum shear stress been 3 N/mm². The depth of the beam is equal to ______
200mm
250mm
300mm
350mm
Explanation:-
Answer: Option B. -> 250mm Answer: (b).250mm
Question 4. At ________ the shearing stress in a beam are maximum.
Extreme fibres
Modulus of section
Neutral axis
Along the cross-sectional area
Explanation:-
Answer: Option C. -> Neutral axis Answer: (c).Neutral axis
Question 5. Determine the shear stress at the level of neutral axis, if a beam has a triangle cross section having base “b” and altitude “h”. Let the shear force be subjected is F.
3F/8bh
4F/3bh
8F/3bh
3F/6bh
Explanation:-
Answer: Option C. -> 8F/3bh Answer: (c).8F/3bh
Question 6. Modular ratio method is also known as ______
Ultimate stress method
Limit state method
Working stress method
Stress and strain method
Explanation:-
Answer: Option C. -> Working stress method Answer: (c).Working stress method
Question 7. __________ is the device used for measuring normal stresses on the surface of a stressed object.