Prestressed Concrete Structures Mock Test 2

10%

Question 1 of 10

1. The expansion of the concrete is restrained by ___________

High-strength concrete

High-tensile steel

Concrete members

Precast members

Question 1 of 10

Question 2 of 10

2. In the elastic range, any increase in prestressed member does not show any effect on ____________

Flexural stress

Bending stress

Compressive stress

Steel stress

Question 2 of 10

Question 3 of 10

3. The linear expansion of the cement in chemical pre stressing is about ___________

2-3%

6-7%

5-10%

3-4%

Question 3 of 10

Question 4 of 10

4. The stress in tendons of bonded beams is ____________

α_e (My/R)

α_e (My/I)

α_e (My/L)

α_e (My/20)

Question 4 of 10

Question 5 of 10

5. The loss of prestress due to elastic deformation of concrete depends on ____________

Modulus of elasticity of steel

Prestress in concrete

Modular ratio and average stress

Modular elasticity and shear

Question 5 of 10

Question 6 of 10

6. The shrinkage of concrete in prestressed members results in ___________

Stressing

Bulking

Elongation

Shortening

Question 6 of 10

Question 7 of 10

7. The term E_c in losses developed by elastic deformation is expressed as ____________

P_c/E_a

P_e/A

P/A_cE_c

E_a/E_l

Question 7 of 10

Question 8 of 10

8. The rotation equation obtained by applying Mohr’s theorem considering a concrete beam of span l, force p, eccentricity e is?

θ_p = PeL/20EI

θ_p = PeL/2EI

θ_p = PeL/16EI

θ_p = PeL/4EI

Question 8 of 10

Question 9 of 10

9. The eccentricity e in the pressure line diagram is?

h/12

h/15

h/8

h/16

Question 9 of 10

Question 10 of 10

10. The loss in prestress is necessary to make an estimate of ____________

Design

Appearance

Shear

Question 10 of 10