Civil Engineering MCQ. PWD, CPWD, RRB, SSC, Mock Test Paper

Subject: Structural Analysis 10

**Part 4: List for questions and answers of Structural Analysis II**

**Q1. Maximum shear stress theory for the failure of a material at the elastic limit, is known**

a) Guest’s or trecas’ theory

b) St. Venant’s theory

c) Rankine’s theory

d) Haig’s theory

**Q2. A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised**

a) Steel experiences tensile force

b) Brass experiences compressive force

c) Composite beam gets subjected to a couple

d) All the above

**Q3. Maximum principal stress theory for the failure of a material at elastic point, is known**

a) Guest’s or trecas’ theory

b) St. Venant’s theory

c) Rankine’s theory

d) Haig’s theory

**Q4. The ratio of tangential and normal components of a stress on an inclined plane through θ°° to the direction of the force, is :**

a) Sin θ°

b) Cos θ°

c) Tan θ°

d) Cos θ°

**Q5. The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is**

a) 1

b) 2

c) 3

d) 4

**Q6. Maximum strain theory for the failure of a material at the elastic limit, is known as**

a) Guest’s or Trecas’ theory

b) St. Venant’s theory

c) Rankine’s theory

d) Haig’s theory

**Q7. Gradually applied static loads do not change with time their**

a) Magnitude

b) Direction

c) Point of application

d) All the above

**Q8. The normal and tangential components of stress on an inclined plane through θ° to the direction of the force, will be equal if θ° Is**

a) 45°

b) 30°

c) 60°

d) 90°

**Q9. A close coil helical spring when subjected to a moment m having its axis along the axis of the helix**

a) It is subjected to pure bending

b) Its mean diameter will decrease

c) Its number of coils will increase

d) All the above

**Q10. A body is said to be in equilibrium if**

a) It moves horizontally

b) It moves vertically

c) It rotates about its c.g

d) None of these

**Q11. The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is**

a) 0.25

b) 0.5

c) 1

d) 2

**Q12. The load on a spring per unit deflection, is called**

a) Stiffness

b) Proof resilience

c) Proof stress

d) Proof load

**Q13. In a shaft, the shear stress is not directly proportional to**

a) Radius of the shaft

b) Angle of twist

c) Length of the shaft

d) Modulus of rigidity

**Q14. A compound truss may be formed by connecting two simple rigid frames, by**

a) Two bars

b) Three bars

c) Three parallel bars

d) Three bars intersecting at a point

**Q15. The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is**

a) Circle

b) Parabola

c) Ellipse

d) Straight line

**Q16. For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is**

a) 0.303

b) 0.404

c) 0.505

d) 0.707

**Q17. The ratio of maximum and average shear stresses on a rectangular section, is**

a) 1

b) 1.25

c) 1.5

d) 2.0

**Q18. The locus of the moment of inertia about inclined axes to the principal axis, is**

a) Straight line

b) Parabola

c) Circle

d) Ellipse

**Q19. The strain energy due to volumetric strain**

a) Is directly proportional to the volume

b) Is directly proportional to the square of exerted pressure

c) Is inversely proportional to bulk modulus

d) All the above

**Q20. M1 and m2 are the members of two individual simple trusses of a compound truss. The compound truss will be rigid and determinate if**

a) m = m1 + m2

b) m = m1 + m2 + 1

c) m = m1 + m2 + 2

d) m = m1 + m2 + 3

**Part 4: List for questions and answers of Structural Analysis II**

Q1. Answer: a

Q2. Answer: d

Q3. Answer: c

Q4. Answer: c

Q5. Answer: d

Q6. Answer: c

Q7. Answer: d

Q8. Answer: a

Q9. Answer: a

Q10. Answer: d

Q11. Answer: d

Q12. Answer: a

Q13. Answer: c

Q14. Answer: c

Q15. Answer: c

Q16. Answer: d

Q17. Answer: d

Q18. Answer: d

Q19. Answer: d

Q20. Answer: d