The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is (A) D 4 /(D 4 - d 4 ) (B) D 3 /(D 3 - d 3 ) (C) (D 4 - d 4 )/D 4 (D) (D 3 - d 3 )/D 3

The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft
(external diameter D and internal diameter d), is
(A) D
4
/(D
4 - d
4
)
(B) D
3
/(D
3 - d
3
)
(C) (D
4 - d
4
)/D
4
(D) (D
3 - d
3
)/D
3
by

1 Answer

Answer :

(A) D
4
/(D
4 - d
4
)
by

Related questions

If n is the ratio of internal and external diameters of a hollow shaft, the ratio of the weight of the hollow shaft and that of solid shaft of same strength, will be (A) (1 - n²)/(1 - n²)1/2 (B) (1 - n²)/(1 - n 4 )2/3 (C) (1 + n 3 )/(1 + n 4 )1/2 (D) (1 + n 1 )/(1 + n 4 )2/3

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Last Answer : (B) (1 - n²)/(1 - n 4 )2/3

The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is (A) 2.75 cm (B) 3.00 cm (C) 3.50 cm (D) 4.25 cm

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The polar moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter of 6 cm will be a.137.5 cm4 b.107 dynes c.275 cm4 d.550 cm4 e.1100 cm4

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The moment of inertia of a hollow circular section whose external diameter is 8 cm and interial diameter is 6 cm about the axis passing through its centre is a.66.8 cm4 b.137.5 cm4 c.550 cm4 d.33.4 cm4 e.275 cm4

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Torque and bending moment of 100 kN.m and 200 kN.m acts on a shaft which has external diameter twice of internal diameter. What is the external diameter of the shaft which is subjected to a maximum shear stress of 90 N/mm2? a. 116.5 mm b. 233.025 mm c. 587.1 mm d. 900 mm

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Last Answer : (C) (D² + d²)/8D

A solid shaft has diameter 80 mm. It is subjected to a torque of 4 KNm. The maximum shear stress induced in the shaft would be (a) 75/p N/mm2 (b) 250/p N/mm2 (c) 125/p N/mm2 (d) 150/p N/mm2

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Last Answer : b. 14.69 N/mm2

What is the maximum principle stress induced in a solid shaft of 40 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 150 kN.mm respectively? a. 21.69 N/mm2 b. 28.1 N/mm2 c. 50.57 N/mm2 d. 52.32 N/mm2

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The ratio of the section modulus of a square section of side B and that of a circular section of diameter D, is (A) 2 /15 (B) 3 /16 (C) 3 /8 (D) /16

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Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is the same as that of the side of the square footing. The ratio between their ultimate bearing capacities will be : (a) 1.0 (b) 1.3 (c) 1.33 (d) 0.75

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Last Answer : (d) 0.75