When a rectangular beam is loaded longitudinally, the shear force develops on th

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Question
When a rectangular beam is loaded longitudinally, the shear force develops on the top layer.
Options
A. Agree
B. Disagree

Correct Answer

Disagree

Strength of Materials problems

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1. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The minimum normal stress will be
Options
A. -100 MPa
B. 250 MPa
C. 300 MPa
D. 400 MPa

2. A simply supported beam 'A' of length l, breadth b, and depth d carries a central point load W. Another beam 'B' has the same length and depth but its breadth is doubled. The deflection of beam 'B' will be __________ as compared to beam 'A'.
Options
A. one-fourth
B. one-half
C. double
D. four times

3. A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The maximum normal stress will be
Options
A. -100 MPa
B. 250 MPa
C. 300 MPa
D. 400 MPa

4. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the diameter of wire of spring 'A' is double that of spring 'B' The stiffness of spring 'B' will be __________ that of spring 'A'
Options
A. one-sixteenth
B. one-eighth
C. one-fourth
D. one-half

5. The length of a conical bar is l, diameter of base is d and weight per unit volume is w. It is fixea at its upper end and hanging freely. The elongation of the bar under the action of its own weight will be
Options
A.
B.
C.
D.

7. In a simply supported beam carrying a uniformly distributed load w per unit length, the point of contraflexure
Options
A. lies in the centre of the beam
B. lies at the ends of the beam
C. depends upon the length of beam
D. does not exist

9. Which of the following is a proper sequence?
Options
A. proportional limit, elastic limit, yielding, failure
B. elastic limit, proportional limit, yielding, failure
C. yielding, proportional limit, elastic limit, failure
D. none of the above

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