Prestressed Concrete Structures Mock Test 6

10%

Question 1 of 10

1. According to Indian standard code IS: 3370 the load factors against cracking and collapse should not be less than?

1.5

0.3

Question 1 of 10

Question 2 of 10

2. Find minimum range of stresses if f_ct is 15n/mm², f_cw is 17, f_tw is zero, f_u is -1n/mm², ɳ is 0.8?

10 and 16n/mm²

13 and 14n/mm²

12 and 18n/mm²

12 and 15n/mm²

Question 2 of 10

Question 3 of 10

3. A pretensioned prestressed concrete beam of rectangular section is required to support a design ultimate moment of 100knm. Design the section if f_ck is 50n/mm² and f_p 1600n/mm², x_u/d is 0.5?

600

500

300

200

Question 3 of 10

Question 4 of 10

4. Find resultant maximum long term deflection if ϕ is 2.6, α_y is 38.5mm, α_g is 46mm, α_p is 74.7mm?

35mm

55mm

20mm

95mm

Question 4 of 10

Question 5 of 10

5. The steps involved in design of biaxially loaded column are ____________

Question 5 of 10

Question 6 of 10

6. Find force in cable using Freyssinet cables 12-8mm diameter and stressed to 1100n/mm² of eccentricity 50 and the prestressing force is given as 1000n/mm²?

300kn

234kn

660kn

230kn

Question 6 of 10

Question 7 of 10

7. The reinforcement can cater for which requirements?

Range requirements

Serviceability requirements

Termed requirements

Limited requirement

Question 7 of 10

Question 8 of 10

8. When the work has resumed the surfaces of the concrete previously placed should be cleaned of ____________

Ash

Mud

Soil

Dirt

Question 8 of 10

Question 9 of 10

9. In partially prestressed members, to which extent tensile stresses are permitted?

Zero

Limited

Constant

Unlimited

Question 9 of 10

Question 10 of 10

10. In roadway slabs, construction joints should be formed?

Aligned

Vertical

Horizontal

Loaded

Question 10 of 10