Maximum shear stress in a triangular section ABC of height H and base B occurs at _________ a. H b. H/2 c. H/3 d. neutral axis

Maximum shear stress in a triangular section ABC of height H and base B occurs at  _________
a. H
b. H/2
c. H/3
d. neutral axis
by

1 Answer

Answer :

b. H/2
by

Related questions

What is the shear stress acting along the neutral axis of triangular beam section, with base 60 mm and height 150 mm, when shear force of 30 kN acts? a. 15.36 N/mm2 b. 10.6 N/mm2 c. 8.88 N/mm2 d. Insufficient data

Description : What is the shear stress acting along the neutral axis of triangular beam section, with base 60 mm and height 150 mm, when shear force of 30 kN acts? a. 15.36 N/mm2 b. 10.6 N/mm2 c. 8.88 N/mm2 d. Insufficient data

Last Answer : c. 8.88 N/mm2

What is the shear stress acting along the neutral axis, over a triangular section? a. 2.66 (S/bh) b. 1.5 (S/bh) c. 0.375 (S/bh) d. None of the above

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A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is (A) 3S/bh (B) 4S/bh (C) 4b/Sh (D) 3b/bS

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A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the a. top of the section b. bottom of the section c. neutral axis of the section d. junction of web and flange

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Neutral axis of a beam always coincides with a. Axis passing through bottom of beam b. Axis passing through height h/2 from bottom c. Axis passing through height h/3 from bottom d. Axis passing through centroid

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The average shear stress in a beam of circular section is _______ times the maximum shear stress. a. 0.75 b. 1.5 c. 4/3 d. equa

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The ratio of maximum shear stress to average shear stress is 4/3 in _______ a. circular cross-section b. rectangular cross-section c. square cross-section d. all of the above

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Which of the following is incorrect? a. In a solid shaft maximum shear stress occurs at radius = radius of shaft b. In a solid shaft maximum shear stress occurs at center c. In a hollow shaft maximum shear stress occurs at outer radius d. In a hollow shaft minimum shear stress occurs at inner radius

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In a simple bending theory, one of the assumption is that the plane sections before bending remain plane after bending. This assumption means that a. stress is uniform throughout the beam b. strain is uniform throughout the beam c. stress is proportional to the distance from the neutral axis d. strain is proportional to the distance from the neutral axis

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Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to (A) Shear force (B) Area of the section (C) Distance of the C.G. of the area from its neutral axis (D) Moment of the beam section about its neutral axis

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For a beam of triangular cross section, the ratio τmax/ τav is (a) 3/2 (b) 4/2 (c) 5/2 (d) None

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The slope of shear force line at any section of the beam is also called (a) Bending moment at that section (b) Rate of loading at that section (c) Maximum Shear force (d) Maximum bending moment

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Maximum shear stress in a thick shell is a) (σh+ σl)/2 b) (σh+ σr)/2 c) (σh– σl)/2 d) None

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Considering σh, σl and σr, maximum shear stress will be a) (σh—σl) /2 b) (σl— σh) /2 c) (σh + σr) /2 d) None

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A thin spherical shell under internal pressure will fail under a. Maximum shear stress b. Principal compressive stress c. Principal tensile stress d. None

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According to ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30

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Last Answer : a) X=30 Y=18

A transmission shaft subjected to bending loads must be designed on the basis of (a) maximum normal stress theory (b) maximum shear stress theory (c) maximum normal stress and maximum shear stress theories (d) fatigue strength

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A hollow circular tube with a 2.3-cm I.D. and 2.5-cm O.D. is rigidly supported at its ends. A 2.5 kN-m torque is applied at the center of this tube. What is the maximum shear stress acting on this tube? (a) 2.87Mpa (b) 4.27 Mpa (c) 6.92 Mpa (d) 10.2 Mpa

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Last Answer : (a) 2.87Mpa

A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p

Description : A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p

Last Answer : (d) 27/p

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

Description : 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

Last Answer : (c) 125/p N/mm2

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

Description : 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

Last Answer : c. 587.1 mm

What is the maximum shear stress induced in a solid shaft of 50 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 200 kN.mm respectively? a. 9.11 N/mm2 b. 14.69 N/mm2 c. 16.22 N/mm2 d. 20.98 N/mm2

Description : What is the maximum shear stress induced in a solid shaft of 50 mm diameter which is subjected to both bending moment and torque of 300 kN.mm and 200 kN.mm respectively? a. 9.11 N/mm2 b. 14.69 N/mm2 c. 16.22 N/mm2 d. 20.98 N/mm2

Last Answer : b. 14.69 N/mm2

Strength of a shaft a. Is equal to maximum shear stress in the shaft at the time of elastic failure b. Is equal to maximum shear stress in the shaft at the time of rupture c. Is equal to torsional rigidity d. Is ability to resist maximum twisting moment

Description : Strength of a shaft a. Is equal to maximum shear stress in the shaft at the time of elastic failure b. Is equal to maximum shear stress in the shaft at the time of rupture c. Is equal to torsional rigidity d. Is ability to resist maximum twisting moment

Last Answer : d. Is ability to resist maximum twisting moment

Maximum shear stress in a hollow shaft subjected to a torsional moment is at the a. Middle of thickness. b. At the inner surface of the shaft. c. At the outer surface of the shaft. d. At the middle surface of the shaft.

Description : Maximum shear stress in a hollow shaft subjected to a torsional moment is at the a. Middle of thickness. b. At the inner surface of the shaft. c. At the outer surface of the shaft. d. At the middle surface of the shaft.

Last Answer : c. At the outer surface of the shaft.

Maximum shear stress of a solid shaft is given by a. 16T/πd b. 16T/πd2 c. 16T/πd3 d. 16T/πd4

Description : Maximum shear stress of a solid shaft is given by a. 16T/πd b. 16T/πd2 c. 16T/πd3 d. 16T/πd4

Last Answer : c. 16T/πd3

Magnitude of shear stress induced in a shaft due to applied torque varies from a. Maximum at centre to zero at circumference. b. Maximum at centre to minimum (not-zero) at circumference. c. Zero at centre to maximum at circumference. d. Minimum (not zero) at centre to maximum at circumference.

Description : Magnitude of shear stress induced in a shaft due to applied torque varies from a. Maximum at centre to zero at circumference. b. Maximum at centre to minimum (not-zero) at circumference. c. Zero at centre to maximum at circumference. d. Minimum (not zero) at centre to maximum at circumference.

Last Answer : c. Zero at centre to maximum at circumference.

Shear stress is maximum at the (a) Outermost fiber (b) Central fiber (c) Neither outermost nor central fiber (d) None

Description : Shear stress is maximum at the (a) Outermost fiber (b) Central fiber (c) Neither outermost nor central fiber (d) None

Last Answer : (b) Central fiber

A square object of 4 mm is subjected to a force of 3000 N. What is the maximum allowable shear stress acting on it? a. 250.14 mm2 b. 281.25 mm2 c. 400.32 mm2 d. 500 mm2

Description : A square object of 4 mm is subjected to a force of 3000 N. What is the maximum allowable shear stress acting on it? a. 250.14 mm2 b. 281.25 mm2 c. 400.32 mm2 d. 500 mm2

Last Answer : b. 281.25 mm2

A circular pipe is subjected to maximum shear force of 60 kN. What is the diameter of the pipe if maximum allowable shear stress is 5 Mpa? a. 27.311 mm b. 75.56 mm c. 142.72 mm d. 692.10 mm

Description : A circular pipe is subjected to maximum shear force of 60 kN. What is the diameter of the pipe if maximum allowable shear stress is 5 Mpa? a. 27.311 mm b. 75.56 mm c. 142.72 mm d. 692.10 mm

Last Answer : c. 142.72 mm

What is the average shear stress acting on a rectangular beam, if 50 N/mm2is the maximum shear stress acting on it? a. 31.5 N/mm2 b. 33.33 N/mm2 c. 37.5 N/mm2 d. 42.5 N/mm2

Description : What is the average shear stress acting on a rectangular beam, if 50 N/mm2is the maximum shear stress acting on it? a. 31.5 N/mm2 b. 33.33 N/mm2 c. 37.5 N/mm2 d. 42.5 N/mm2

Last Answer : b. 33.33 N/mm2

At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by (A) Depth of the section (B) Depth of the neutral axis (C) Maximum tensile stress at the section (D) Maximum compressive stress at the section

Description : At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of  the section by  (A) Depth of the section  (B) Depth of the neutral axis  (C) Maximum tensile stress at the section  (D) Maximum compressive stress at the section

Last Answer : (B) Depth of the neutral axis 

When a rectangular beam is loaded transversely, the maximum compressive stress develops on (A) Bottom fibre (B) Top fibre (C) Neutral axis (D) Every cross-section

Description : When a rectangular beam is loaded transversely, the maximum compressive stress develops on (A) Bottom fibre (B) Top fibre (C) Neutral axis (D) Every cross-section

Last Answer : (B) Top fibre

Regarding the working stress design of under reinforced concrete section, (a) The neutral axis depth will be greater than that of a balanced section. (b) The stress in steel intension will reach its maximum permissible value first. (c) The moment of resistance will be less than that of the balanced section. (d) The concrete on the tension side is also be considered for calculating the moment of resistance of the section.

Description : Regarding the working stress design of under reinforced concrete section, (a) The neutral axis depth will be greater than that of a balanced section. (b) The stress in steel intension will reach ... on the tension side is also be considered for calculating the moment of resistance of the section.

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