Strength of Materials MCQ with Answers

41) When a body is subjected to a direct tensile stress in one plane, the maximum shear stress is _____ the maximum normal stress.

Answer is:

one-half

42) Principle plane is a plane on which the shear stress is

Answer is:

zero

43) The maximum shear stress is ______ the algebraic difference of maximum and minimum normal stresses.

Answer is:

one-half

44) The maximum shear stress is equal to ______ of the Mohr's circle.

Answer is:

radius

Explanation:

The Mohr’s circle is a graphical method of finding the normal, tangential and resultant stresses on an inclined plane.

The maximum shear stress will be equal to the radius of the Mohr’s circle and will act on planes at 45° to the principal planes.

45) Mohr's circle is used to determine the stresses on an oblique section of a body subjected to

Answer is:

41) When a body is subjected to a direct tensile stress in one plane, the maximum shear stress is _____ the maximum normal stress.

one-half

42) Principle plane is a plane on which the shear stress is

zero

43) The maximum shear stress is ______ the algebraic difference of maximum and minimum normal stresses.

one-half

44) The maximum shear stress is equal to ______ of the Mohr's circle.

radius

45) Mohr's circle is used to determine the stresses on an oblique section of a body subjected to

all of the above