A. d4N/8D3n
B. d4N/4D3n
C. 4D3N/d4n
D. 8D3N/d4n
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 - A close coil helical spring when subjected to a moment M having its axis along the axis of the helix_________________?
A. It is subjected to pure bending
B. Its mean diameter will decrease
C. Its number of coils will increase
D. All the above - For the close coil helical spring of the maximum deflection is__________________?
A. WD3n/d4N
B. 2WD3n/d4N
C. 4W²D3n/d4N
D. 8WD3n/d4N - The load on a spring per unit deflection, is called______________?
A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load - A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is_____________?
A. 25 N
B. 30 N
C. 35 N
D. 40 N - 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 - The greatest load which a spring can carry without getting permanently distorted, is called_________________?
A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load - 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 ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is_________________?
A. 1.0
B. 1.5
C. 2.0
D. 3.0 - The equivalent length is of a column of length having both the ends fixed, is_________________?
A. 2 L
B. L
C. L/2
D. L
