141.  In a fixed beam, the points of contraflexure,
A. for a uniformly distributed load are 2
B. for a concentrated load are 2
C. for a moment applied at mid point are 3
D. all the above.

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142. Maximum deflection of a
A. Cantilever beam carrying a concentrated load W at its free end is we 3E1
B. simply supported beam carrying a concentrated load WWL3 at mid-span is 48 E
C. cantilever beam, carrying a uniformly distributed load over span is we 8E1
D. All the above.

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143.  The maximum deflection of
A. a simply supported beam carrying a uniformly increasing load from either end and having the apex at the mid. WL3 span is 60 El
B. a fixed ended beam carrying a distributed load over the WL3 span is 192 El
C.(d) a cantilever beam subjected to a moment M at the free end is WL3 3 El
D. All the above.

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144.  For structural analysis, Maxwell's reciprocal theorem can be applied to :
A. plastic structures
B. elastic structures
C. symmetrical structures
D. all the above.

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145. For structural analysis of forces, the method refers to
A. moment-area-theorem
B. three-moment equation Maxwell's reciprocal theorem
C. a fixed ended beam carrying a concentrated load at the
D. none of these.

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146. Influence lines are drawn for structures
A. of any type
B. statically determinate
C.(b) pin-jointed truss
D. none of these.

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147.  The tensile force required to cause an elongation of 0.045 mm in a steel rod of 1000 mm length and 12 mm diameter, where E = 2 x 106 kg/cm2.is
A. 166 kg
B. 102 kg
C. 204 kg
D. 74 kg

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