GATE CE 2011 | Torsion Question 2 | Strength of Materials Or Solid Mechanics

GATE CE 2011

MCQ (Single Correct Answer)

-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 1 English

GATE CE 2011 Strength of Materials Or Solid Mechanics - Torsion Question 1 English

The portion $$RS$$ has a constant twisting moment with a value of $$2WL.$$

The portion $$QR$$ has a varying twisting moment with a maximum value of $$WL.$$

The portion $$PQ$$ has a varying bending moment with a maximum value of $$WL$$.

The portion $$PQ$$ has no twisting moment.

GATE CE 2010

MCQ (Single Correct Answer)

-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

$${{16TL} \over {\pi {d^4}G}}$$

$${{32TL} \over {\pi {d^4}G}}$$

$${{64TL} \over {\pi {d^4}G}}$$

$${{128TL} \over {\pi {d^4}G}}$$

GATE CE 2009

MCQ (Single Correct Answer)

-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

$$46$$ $$kN$$-$$m$$

$$24$$ $$kN$$-$$m$$

$$23$$ $$kN$$-$$m$$

$$11.5$$ $$kN$$-$$m$$

GATE CE 2008

MCQ (Single Correct Answer)

-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

$$2\pi $$

$$\tau $$

$$\tau /2$$

$$\tau /4$$

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