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This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Pavement Design knowledge and support exam preparation. Choose a topic below to get started.
1. |
The joint filler in the expansion joint is assumed to be compressed by how much percentage? |
A. | 80 % |
B. | 75 % |
C. | 50 % |
D. | 35 % |
Answer» D. 35 % | |
2. |
Find the spacing for contraction joint to be included in an RCC slab in the rigid pavement having the following details.Permissible tensile stress in the reinforcement, SS = 1200 kg/cm2Slab width, b = 4 mThickness of slab, h = 25 cmArea of reinforcement, A = 9.35 m2Coefficient of friction, f = 0.15Unit weight of concrete, W = 2400 kg/m3 |
A. | 2.27 m |
B. | 2.72 m |
C. | 7.72 m |
D. | 7.27 m |
Answer» E. | |
3. |
The maximum spacing of contraction joint in a 30 cm thick PCC slab is taken as 5 m. |
A. | True |
B. | False |
Answer» B. False | |
4. |
For finding the spacing between contraction joints in an RCC slab, it is assumed that the reinforcement takes up all the compressive force in the slab. |
A. | True |
B. | False |
Answer» C. | |
5. |
Find the spacing for contraction joint to be included in an RCC slab in the rigid pavement having the following details.Permissible tensile stress in the reinforcement, SS = 1250 kg/cm2Slab width, b = 3.5 mThickness of slab, h = 22 cmCoefficient of friction, f = 0.15Unit weight of concrete, W = 2400 kg/m3The steel bars of 1 cm diameter are placed at 0.25 m spacing. |
A. | 9 m |
B. | 10.92 m |
C. | 10 m |
D. | 9.92 m |
Answer» E. | |
6. |
Find the spacing between expansion joints for the following data given below.Width of expansion joint gap = 2.5 cmTemperature during laying the pavement = 16°CMaximum temperature during summer = 55°CCoefficient of thermal expansion = 10×10-6 /°C |
A. | 32.05 m |
B. | 33.05 m |
C. | 34.05 m |
D. | 35.05 m |
Answer» B. 33.05 m | |
7. |
Determine the spacing between contraction joints of a 4 m wide slab having 15 cm thickness, coefficient of friction is 1.3 and allowable stress in concrete is 0.8 kg/cm2. |
A. | 4.13 m |
B. | 5.5 m |
C. | 5.13 m |
D. | 4.5 m |
Answer» E. | |
8. |
Find the spacing between expansion joints for the following data given below.Width of expansion joint gap = 2.5 cmTemperature during laying the pavement = 14°CMaximum temperature during summer = 50°CCoefficient of thermal expansion = 10×10-6 /°C |
A. | 35.34 m |
B. | 35.72 m |
C. | 34.34 m |
D. | 34.72 m |
Answer» E. | |
9. |
At what length of the slab does the maximum stress due to friction occur in the case of contraction joints? |
A. | One fourth |
B. | Half |
C. | Three fourth |
D. | Full |
Answer» C. Three fourth | |
10. |
What is the equation to compute the contraction joint spacing for a plain cement concrete pavement? |
A. | \(L_c=\frac{2×10^2 SA}{fWbh}\) |
B. | \(L_c=\frac{2×10^4 S}{fW}\) |
C. | \(L_c=\frac{2×10^2 S}{fW}\) |
D. | \(L_c=\frac{2×10^4 SA}{fWbh}\) |
Answer» C. \(L_c=\frac{2×10^2 S}{fW}\) | |
11. |
A thinner slab requires a ______ joint spacing. |
A. | Longer |
B. | Shorter |
C. | Deeper |
D. | Narrower |
Answer» C. Deeper | |
12. |
The maximum spacing between the contraction joints in a reinforced cement concrete slab is ______ |
A. | 15 cm |
B. | 15 m |
C. | 14 cm |
D. | 14 m |
Answer» E. | |
13. |
What is the equation used to find the spacing of the expansion joint? |
A. | \(L_e=\frac{δ}{100C(T_2-T_1)}\) |
B. | \(L_e=\frac{δ}{10C(T_2-T_1)}\) |
C. | \(L_e=\frac{2δ}{100C(T_2-T_1)}\) |
D. | \(L_e=\frac{2δ}{10C(T_2-T_1)}\) |
Answer» B. \(L_e=\frac{δ}{10C(T_2-T_1)}\) | |
14. |
What is the expansion joint spacing design based on? |
A. | Length of pavement |
B. | Length of joint |
C. | Width of pavement |
D. | Width of joint |
Answer» E. | |
15. |
What is the spacing allotted for the expansion joints in summer in the rigid pavement? |
A. | 50 – 60 m |
B. | 50 – 80 m |
C. | 90 – 120 m |
D. | 90 – 100 m |
Answer» D. 90 – 100 m | |