The change in length of a rod of uniform circular cross section was found to be 2 mm for some applied force. The change in length of a rod of the same material and length but of half the diameter subjected to the same force will be Mm

Related MCQs

• The change in length of a rod of uniform cross section was found to be 2 mm for some applied force. The change in length of a rod of the same material and length but of twice the cross section area subjected to the same force will be__ mm.
• Two rods A and B are subjectd to equal load P. Rod A is tapering with bigger diameter D at the support and small end diameter as D/2. Rod B is of uniform cross section with diameter D. The ratio of elongation of rod A to that of B would be
• If an axial force of 15 kN is applied to a rod of 25 mm diameter, length 300 mm, the change in length of the rod was observed to be 0.045 mm. The modulus of elasticity of the material is 200 GPa. The strain in the rod will be ____ _.
• If an axial force of 1 kN is applied to a rod of 100 mm2 cross section area, length 5 m and the modulus of elasticity of the material is 100 GPa, the change in length of the rod will be ___ .
• An axial hoad is applied on a circular section of diameter D. If the same load is applied on hollow circular section with inner diameter D/2, the ratio of stress in two cases would be
• Two beams, one of circular cross-section and other of square cross-section, have equal areas of cross-section. If subjected to bending
• Two shafts of the same material are subjected to the same torque. If the first shaft is of solid circular section and the second shaft is of hollow section whose internal diameter is 2/3 of the outside diameter, the ratio of weights of hollow shaft to solid shaft would be
• An axial load P is applied on a circular section of diameter D. If the same load is applied on a hollow circular shaft with inner diameter as D/2, the ratio of stress in two cases would be
• Two shafts are made of mild steel one having circular cross-section and the other shaft is hollow circular with inner diameter half of the outer diameter. The ratio of the torque that can be transmitted in two cases will be
• Two beams, one of circular cross-section and the other of square cross-section, have equal areas of cross-sections. When these beams are subjected to bending.