A. E = /A. L
B. E =/P. L
C. E = P. L/
D. E = P. A/
Related Mcqs:
- If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good_______________?
A. E = 3K (1 – 2/m)
B. E = 2N (1 + 1/m)
C. (3/2)K (1 – 2/m) = N (1 + 1/m)
D. All the above - A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber)_________________?
A. BD² + mbd²)/6D]
B. BD3 + mbd3)/6D]
C. BD² + mbd3)/4D]
D. BD² + mbd²)/4D] - section modulus of a square section of side B and that of a circular section of The ratio of the diameter D, is___________________?
A. 2 /15
B. 3 /16
C. 3 /8
D. /16 - A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm2, the deflection of the free end, is________________?
A. 2 mm
B. 3 mm
C. 4 mm
D. 5 mm - A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson’s ratio is 0.25, the change in the volume of the bar is_________________?
A. 1.125 cm3
B. 2.125 cm3
C. 3.125 cm3
D. 4.125 cm2 - At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by_________________?
A. Depth of the section
B. Depth of the neutral axis
C. Maximum tensile stress at the section
D. Maximum compressive stress at the section - If a concrete column 200 × 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec________________?
A. 264 MN
B. 274 MN
C. 284 MN
D. 294 MN - A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm2and that of brass bar is 3000 mm2. These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 MN/mm2, the stresses developed are___________________?
A. b = 10 N/mm2 s = 20 N/mm 2
B. b = 8 N/mm2 s = 16 N/mm2
C. b = 6 N/mm2 s = 12 N/mm2
D. b = 5 N/mm2 s = 10 N/mm2 - 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 - A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm2, the side of the rod, is_________________?
A. 1 cm
B. 1.5 cm
C. 2 cm
D. 2.5 cm
