1
GATE CE 2012
MCQ (Single Correct Answer)
+1
-0.3
Which one of the following is categorized as a long-term loss of prestress in a prestressed concrete member?
A
Loss due to elastic shortening
B
Loss due to friction
C
Loss due to relaxation of strands
D
Loss due to anchorage slip
2
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
$$IS:$$ $$1343 – 1980$$ limits the minimum characteristic strength of pre-stressed concrete for post tensioned works and pretension work as
A
25MPa, 30MPa respectively
B
25MPa, 35MPa respectively
C
30MPa, 35MPa respectively
D
$$30$$ $$MPa,$$ $$40$$ $$MPa$$ respectively
3
GATE CE 2005
MCQ (Single Correct Answer)
+1
-0.3
As per Indian standard code of practice for prestressed concrete $$(IS:1343-1980)$$ the minimum grades of concrete to be used for post-tensioned and pre-tensioned structural elements are respectively
A
$$M20$$ for both
B
$$M40$$ and $$M30$$
C
$$M15$$ and $$M20$$
D
$$M30$$ and $$M40$$
4
GATE CE 1993
MCQ (Single Correct Answer)
+1
-0.3
Let $$jd$$ be the lever arm between the resultant tensile force $$T$$ in the reinforcing prestressing steel and the resultant compressive force $$C$$ in concrete of a reinforced / prestressed concrete beam. When subjected to increase in the external bending moment, which one of the following statements is true in reinforced and prestressed concrete beams?

In reinforced concrete beams

A
$$T$$ increases at a faster rate than $$jd$$
B
Both $$T$$ and $$jd$$ increases at the same rate
C
$$jd$$ increases at a faster rate than $$T$$
D
Neither $$T$$ nor $$jd$$ increases
GATE CE Subjects
Fluid Mechanics and Hydraulic Machines
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12