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GATE CE: Concrete Structures Champion Quiz 5

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Question 1

Prestressing force in a wire under thermal stressing can be estimated from which of the following?
1) Pressure gauge with jack
2) Elongation of wire
3) Temperature rise
Select the correct answer using the codes given below:

Question 2

The effective height of a masonry wall of height H restrained fully at its top and partially at its bottom, is

Question 3

Prestressing anchorage unit using multiple wire cables exists in the

Question 4

Concordant cable profile is

Question 5

What is the allowable upward deflection in a prestress concete member under serviceability limit state condition?

Question 6

A post-tensioned beam of span 25 m is Prestressed with 20 numbers of 40 mm diameter cables, each stressed to 1500 MPa, with eccentricity e = 0 at supports and e = 500 mm at midspan, varying parabolically. If the shear force at the support section due to externally applied load is 4500 kN, what is the nearest magnitude of the shear force resisted by the stirrups?

Question 7

If a simply supported concrete beam, Prestressed with a force of 2500 kN, is designed by load balancing concept for an effective span of 10 m and to carry a total load of 40 kN/m, the central dip of the cable profile should be

Question 8

The percentage loss of prestress due to anchorage slip of 3 mm in a concrete beam of length 30 m which is post-tensioned by a tendon with an initial stress of 1200 N/mm² and modulus of elasticity equal to 2.1 × 10⁵ N/mm², is

Question 9

According to IS 456 : 2000, maximum slenderness ratio for a short concrete column is

Question 10

The profile of the centroid of the tendon is parabolic with a central dip h. Effective prestressing force is P and the span L. What is the equivalent upward acting uniform load?

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ESE & GATE CE Structural Analysis

Dec 31ESE & GATE CE