A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load
Related Mcqs:
- A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is______________?
A. 4WD²n/d4N
B. 4W²Dn/d4N
C. 4W²D3n/d4N
D. 4W²D3n²/d4N - The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called______________?
A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load - A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is________________?
A. L/d
B. L/2d
C. (L/2d)²
D. (L/3d)² - For the close coil helical spring of the maximum deflection is__________________?
A. WD3n/d4N
B. 2WD3n/d4N
C. 4W²D3n/d4N
D. 8WD3n/d4N - The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is_________________?
A. wl3/3EI
B. wl4/3EI
C. wl4/8EI
D. wl4/12EI - The horizontal deflection of a parabolic curved beam of span 10 m and rise 3 m when loaded with a uniformly distributed load l t per horizontal length is (where Ic is the M.I. at the crown, which varies as the slope of the arch)___________________?
A. 50/EIc
B. 100/EIc
C. 150/EIc
D. 200/EIc - The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is_____________?
A. WL²/2EI
B. WL²/3EI
C. WL3/2EI
D. WL3/3EI
- A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be________________?
A. 10 m
B. 12 m
C. 14 m
D. 16 m - a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is___________________?
A. el/2d
B. e²l/3d²
C. el²/3d²
D. e²l²/3d² - The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span; flexural rigidity being EI, is______________?
A. WL3/3EL
B. WL3/8EL
C. WL3/24EL
D. WL3/48EL
