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GATE 2019 RCC & PSC Day 6 Quiz
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Question 1
Which of the following statement is true for pre-stress in PSC member?
Question 2
The maximum upward deflection of a psc member of span 4m is limited to (in mm)
Question 3
A pre-tensioned concrete member if section 200
250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The pre-stress in the tendons is 1000N/mm2.Assuming modular ratio as 10.the stress in(N/mm2) concrete is
250 mm contains tendons of area 500 mm2 at centre of gravity of the section. The pre-stress in the tendons is 1000N/mm2.Assuming modular ratio as 10.the stress in(N/mm2) concrete is Question 4
In a pre-stressed concrete beam section shown in the figure, the net loss is 10% and the final pre-stressing force applied at X is 750 kN. The initial fiber stresses (in N/mm2) at the bottom of the beam were:
Question 5
A rectangular concrete beam 200 mm wide and 400 mm deep is prestressed by a straight cable carrying an effective prestressing force of 250 kN at an eccentricity of 50 mm. The beam supports a udl of 8 kN/m including its self weight. Span of the beam is 6 m. If the modulus of rupture of concrete is 5 N/mm2, the load factor against cracking is ____.
Question 6
A concrete beam pre-stressed with a parabolic tendon is shown in the fig. The pre-stressing force applied is 1620 kN. The ULD includes self-weight of the beam. The stress in the top fibre of the middle section is (take compressive stress as positive)
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Jun 23ESE & GATE CE
