Civil Engineering - Strength of Materials

41. 

When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called

A. grid frame
B. plane frame
C. space frame
D. truss frame.

Answer: Option B

Explanation:

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42. 

The shear stress at any section of a shaft is maximum

A. at the centre of the section
B. at a distance r/2 from the centre
C. at the top of the surface
D. at a distance 3/4 r from the centre
E. none of these.

Answer: Option C

Explanation:

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43. 

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is

A. one-half of the radius
B. one-third of the radius
C. one-quarter of the radius
D. one-fifth of the radius
E. one-sixth of the radius.

Answer: Option C

Explanation:

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44. 

A beam is said to be of uniform strength, if

A. B.M. is same throughout the beam
B. deflection is same throughout the beam
C. bending stress is same throughout the beam
D. shear stress is same throughout the beam
E. none of these.

Answer: Option C

Explanation:

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45. 

In a tension test, the yield stress is 300 kg/cm2, in the octa hedral shear stress at the point is:

A. 100 2 kg/cm2
B. 150 2 kg/cm2
C. 200 2 kg/cm
D. 250 2 kg/cm2.

Answer: Option A

Explanation:

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