If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia of the section, is_________________?
B. (IX – IY)/2
C. IX + IY(Correct)
D. (I /I )
B. (IX – IY)/2
C. IX + IY(Correct)
D. (I /I )
B. (IX – IY)/2
C. IX + IY(Correct)
D. (I /I )
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For the close coil helical spring of the maximum deflection is__________________?
For the close coil helical spring of the maximum deflection is__________________?A. WD3n/d4N
B. 2WD3n/d4N
C. 4W²D3n/d4N
D. 8WD3n/d4NA 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 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 cmFor beams of uniform strength, if depth is constant______________?
For beams of uniform strength, if depth is constant______________?A. Width b M
B. Width b M
C. Width b 3 M
D. Width b 1/MA 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 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)²For beams breadth is constant__________________?
For beams breadth is constant__________________?A. Depth d M
B. Depth d 3
C. Depth d
D. Depth d 1/MThe shape factor of standard rolled beam section varies from_______________?
The shape factor of standard rolled beam section varies from_______________?A. 1.10 to 1.20
B. 1.20 to 1.30
C. 1.30 to 1.40
D. 1.40 to 1.50