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Strength of Materials

Deformation of Bars due to Axial Load

A prismatic b...

Question

A prismatic bar PQRST is subjected to axial loads as shown in the figure. The segments having maximum and minimum axial stresses, respectively, are

A

ST and PQ

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B

QR and PQ

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C

ST and RS

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D

QR and RS

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Solution

The correct option is C ST and RS
Axial Loading Diagram
$P_{m a x}$ = $P_{S T}$ = 25 kN
$P_{m i n}$ = $P_{R S}$ = 5 kN
Hence, maximum and minimum axial stresses are in ST and RS portions because of prismatic bar.
Hence the answer is (c)

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