What physical condition is represented by a non-yielding support_________________?
Show answer Hide answer
Answer: D. slope of the beam at the support is zero
Explanation
A non-yielding built-in or fixed support provides complete rigidity against both displacement and rotation. Because rotation of the structural member is entirely prevented at the fixed boundary, the slope must be zero. This zero-slope condition is a defining geometric boundary constraint for clamped beam analysis. Fixed supports restrict translation in all directions and prevent any rotational movement of the member. The elastic curve of a beam must remain horizontal at a built-in support where rotation is restricted. Support boundary conditions are essential for solving indeterminate beam deflection equations.
Cantilever beams are built with fixed supports that ensure zero slope at the wall connection point. Structural engineers use slope and deflection boundary conditions to analyze continuous building frames. Rigid foundations prevent settling, ensuring that supported columns maintain proper alignment under load. Option A describes a frictionless roller or pin support rather than a rigid non-yielding fixed support. Option B refers to reaction magnitude capability rather than the specific geometric slope condition. Option C is a general description of holding power but lacks the precise mathematical slope definition.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. At what stress threshold does material elongation accelerate rapidly relative to load increments______________?
Show answer Hide answer
Answer: D. yielding point of the material
The yielding point marks the specific stress threshold where plastic deformation initiates and material elongation accelerates rapidly under loads. At this critical juncture, atomic crystal planes slide past each other,...
Q2. What stress magnitude is required to initiate plastic yielding_________________?
Show answer Hide answer
Answer: A. considerably greater than that necessary to continue it
Static friction or initial yielding requires greater stress to start than to continue. Overcoming initial molecular bonding and static stiction demands higher peak force thresholds. Once plastic flow or motion is initiat...
Q3. How does the ultimate tensile stress of mild steel compare to its ultimate compressive stress__________________?
Show answer Hide answer
Answer: B. more
Mild steel has a higher ultimate tensile strength compared to its ultimate compressive strength due to internal microstructural behavior under loads. Internal microstructural slip systems and dislocation movements behave...
Q4. What magnitude does the modulus of elasticity typically have for mild steel________________?
Show answer Hide answer
Answer: B. 2.1 X 106 kg/cm2
The modulus of elasticity for mild steel is universally recognized and standardized around two point one times ten to the sixth kg/cm2. This large numerical value reflects the high stiffness of iron-carbon crystal lattic...
Q5. The total vertical stretching of a uniform hanging bar due to its own weight is equivalent to the extension caused by a concentrated weight of________________?
Show answer Hide answer
Answer: B. half the weight of bar applied at lower end
The distributed weight of a hanging bar creates a triangular load profile along its entire length. Integrating this linear self-weight distribution mathematically results in an effective total elongation factor of one-ha...
Q6. What is the typical range for Poisson’s ratio in steel_________________?
Show answer Hide answer
Answer: C. 0.25 to 0.33
The Poisson's ratio for engineering steel typically falls within the range of 0.25 to 0.33. This dimensionless parameter measures the lateral contraction strain relative to the longitudinal extension strain during elasti...