# Multiple Choice Questions (MCQ) with Answers on Compound stresses

Multiple Choice Questions (MCQ) with Answers on Compound stresses

1-Principal planes are those planes on which

1. Normal stress is maximum
2. Normal stress is minimum
3. Normal stress is either maximum or minimum
4. Shear stress is maximum

(Ans: c)

2-In a general two dimensional stress system, there are

1. Two principal planes
2. Only one plane
3. Three principal planes
4. No principal plane

(Ans: a)

3-Principal planes are mutually inclined at

1. 45 degree
2. 60 degree
3. 90 degree
4. 180 degree

(Ans: c)

4-In a general two dimensional stress system, planes of maximum shear stress are inclined at ___ with principal planes.

1. 90 degree
2. 180 degree
3. 45 degree
4. 60 degree

(Ans: c)

5-In a general two dimensional stress system, the planes on which shear stress is zero

1. The normal stress is minimum
2. Normal stress is zero
3. Normal stress is either maximum or minimum
4. None of these

(Ans: c)

6-Angle of obliquity is defined as

1. Angle between the plane on which stresses are evaluated and one of the given planes
2. Angle between resultant stress and the plane of given normal stress
3. Angle between resultant stress and shear stress
4. Angle between resultant stress and normal stress

(Ans: d)

7-Mohr’s stress circle is named so because it has equation of the form

1. x^2 + y^2 = r^2
2. (x-a)^2 + y^2 = r^2
3. (x-a)^2 + (y-b)^2 = r^2
4. It was desired by German Engineer Otto Mohr

(Ans: b)

8-Ellipse of stress is used to find

1. Resultant stress on any plane in a bi-axial stress system
2. Resultant stress on any plane in a general two dimensional system
3. Maximum shear stress
4. Location of planes of maximum shear stress

(Ans: a)

9-In Mohr’s circle of strain, y-axis represents

1. Shear strain
2. Half of shear strain
3. Normal strain
4. Half of normal strain

(Ans: b)

10-In a general two dimensional stress system, Ellipse of stress can find

1. Principal planes
2. Principal stresses
3. Planes of maximum shear stress
4. Resultant stress on any plane

(Ans: d)