1
GATE CE 2011
MCQ (Single Correct Answer)
+2
-0.6
For the cantilever bracket, $$PQRS,$$ loaded as shown in the adjoining figure $$(PQ=RS=L,$$ and $$QR=2L),$$ which of the following statements is FALSE ? GATE CE 2011 Strength of Materials Or Solid Mechanics - Torsion Question 5 English
A
The portion $$RS$$ has a constant twisting moment with a value of $$2WL.$$
B
The portion $$QR$$ has a varying twisting moment with a maximum value of $$WL.$$
C
The portion $$PQ$$ has a varying bending moment with a maximum value of $$WL$$.
D
The portion $$PQ$$ has no twisting moment.
2
GATE CE 2010
MCQ (Single Correct Answer)
+2
-0.6
A solid circular shaft of diameter d and length $$L$$ is fixed at one end and free at the other end. A torque t is applied at the free end. The shear modulus of the material is $$G.$$ The angle of twist at three free ends is
A
$${{16TL} \over {\pi {d^4}G}}$$
B
$${{32TL} \over {\pi {d^4}G}}$$
C
$${{64TL} \over {\pi {d^4}G}}$$
D
$${{128TL} \over {\pi {d^4}G}}$$
3
GATE CE 2009
MCQ (Single Correct Answer)
+2
-0.6
A hollow circular shaft has an outer diameter of $$100$$ $$mm$$ and a wall thickness of $$25$$ $$mm.$$ The allowable shear stress in the shaft is $$125$$ $$MPa.$$ The maximum torque the shaft can transmit is
A
$$46$$ $$kN$$-$$m$$
B
$$24$$ $$kN$$-$$m$$
C
$$23$$ $$kN$$-$$m$$
D
$$11.5$$ $$kN$$-$$m$$
4
GATE CE 2008
MCQ (Single Correct Answer)
+2
-0.6
The maximum shear stress in a solid shaft of circular cross-section having diameter subjected to a torque $$T$$ is $$\tau $$ . If the torque is increased by four times and the diameter of the shaft is increased by two times, the maximum shear stress in the shaft will be
A
$$2\pi $$
B
$$\tau $$
C
$$\tau /2$$
D
$$\tau /4$$
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