A brass bar (E = 110 MPa) of length L = 2.5 m has diameter $d_{1}=18 \mathrm{~mm}$ over one-half of its length and diameter $d_{2}=12 \mathrm{~mm}$ over the other half. Compare this nonprismatic bar to a prismatic bar of the
Same volume of material with constant diameter d and length L. The elon-
Gation of the prismatic bar under the same load P = 25 kN is approxi-
Mately:
A) 3 mm
B) 4 mm
C) 5 mm
D) 6 mm

Question

A brass bar (E = 110 MPa) of length L = 2.5 m has diameter $d_{1}=18 \mathrm{~mm}$ over one-half of its length and diameter $d_{2}=12 \mathrm{~mm}$ over the other half. Compare this nonprismatic bar to a prismatic bar of the
Same volume of material with constant diameter d and length L. The elon-
Gation of the prismatic bar under the same load P = 25 kN is approxi-
Mately:
A) 3 mm 
B) 4 mm 
C) 5 mm 
D) 6 mm

Quizplus · Accepted Answer

The Answer of A brass bar (E = 110 MPa) of length L = 2.5 m has diameter $d_{1}=18 \mathrm{~mm}$ over one-half of its length and diameter $d_{2}=12 \mathrm{~mm}$ over the other half. Compare this nonprismatic bar to a prismatic bar of the
Same volume of material with constant diameter d and length L. The elon-
Gation of the prismatic bar under the same load P = 25 kN is approxi-
Mately:
A) 3 mm 
B) 4 mm 
C) 5 mm 
D) 6 mm

A Brass Bar (E = 110 MPa) of Length L d1=18 mmd_{1}=18 \mathrm{~mm}d1​=18 mm

A Brass Bar (E = 110 MPa) of Length L $d_{1}=18 \mathrm{~mm}$