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.Management Sciences
Category: Theory of Structures
A road of uniform cross-section A and length L force P. The Young’s Modulus E of the material, is_________________?
0
A. E = /A. L
B. E =/P. L
C. E = P. L/
D. E = P. A/
In the truss, the force in the member AC is_______________?
A. 6.25 t compressive
B. 8.75 t tensile
C. t tensile
D. t compressive
Principal planes are subjected to_________________?
A. Normal stresses only
B. Tangential stresses only
C. Normal stresses as well as tangential stresses
D. None of these
The ratio of maximum and average shear stresses on a rectangular section, is________________?
A. 1
B. 1.25
C. 1.5
D. 2.5
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_________________?
A. (IX + IY)/2
B. (IX – IY)/2
C. IX + IY
D. (I /I )
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
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