A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load
Related Mcqs:
- 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 - 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 bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is_________________?
A. WL/2AE
B. WL/AE
C. W²L/AE
D. W²L/2AE - If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (f /N)s__________________?
A. 1/2
B. 1/3
C. 1/4
D. 1/5 - A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is___________________?
A. 411 N mm
B. 511 N mm=
C. 611 N mm
D. 711 N mm - The load on a spring per unit deflection, is called______________?
A. Stiffness
B. Proof resilience
C. Proof stress
D. Proof load - The ratio of lateral strain to axial strain of a homogeneous material, is known___________________?
A. Yield ratio
B. Hooke’s ratio
C. Poisson’s ratio
D. Plastic ratio - 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 - 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 - Total strain energy theory for the failure of a material at elastic limit, is known_________________?
A. Guest’s or Trecas’ theory
B. St. Venant’s theory
C. Rankine’s theory
D. Haig’s theory
