## MCQ – SHEAR STRESSES IN BEAMS-1

MCQ SHEAR STRESSES IN BEAMS-1

MCQ increases clarity and deep understanding of shear stresses in beams. Shear stresses is one important parameter in design of beams.

1. Shear stress variation in a beam is
• (a) Linear
• (b) Exponential
• (c) Logarithmic
• (d) None

ANS: (d)

1. Shear stress variation in a beam is
• (a) Linear
• (b) Exponential
• (c) Parabolic
• (d) None

ANS: (c)

1. Average shear stress in a beam is (Shear force is ‘V’)
• (a) V/Z
• (b) V/A
• (c) V/M
• (d) None

ANS: (b)

1. In symmetrical beam sections, the maximum shear stress is in the
• (a) Top extreme fiber
• (b) Centroid axis fiber
• (c) Bottom most fiber
• (d) None

ANS: (b)

1. The shear stress in a beam is
• (a) Only longitudinal
• (b) Only vertical
• (c) Longitudinal as well as vertical
• (d) None

1. In the shear stress in beam formula

τ   = VA’ Y-‘/I b,   A’ is the area

• (a) Of the entire beam
• (b) Above the centroid axis
• (c) Below the centroid axis
• (d) None

ANS: (d)

1. In the shear stress in beam formula

τ   = VA’ Y-‘/I b,  A’ is the area

• (a) Of the entire beam
• (b) Above the centroid axis
• (c) Above the fiber at distance y
• (d) None

ANS: (c)

1. In the shear stress in beam formula

τ   = VA’ Y-‘/I b, Y-‘ is the distance of centroid

• (a) Of the entire area of the beam
• (b) Of the area above the centroid axis
• (c) Of the area below the centroid axis
• (d) None

ANS: (d)

1. In the shear stress in beam formula

τ   = VA’ Y-‘/I b, Y-‘ is the distance of centroid

• (a) Of the entire area of the beam
• (b) Of the area above the centroid axis
• (c) Of the area above the fiber at distance ‘y’
• (d) None

ANS: (c)

1. The ratio of maximum shear stress to average shear stress in a beam of rectangular section is
• (a) 1
• (b) 2
• (c) 3
• (d) None

ANS\$:(d)

1. The ratio of maximum shear stress to average shear stress in a beam of rectangular section is
• (a) 1. 5
• (b) 2. 5
• (c) 3.5
• (d) None

ANS:(a)

1. The ratio of maximum shear stress to average shear stress in a beam of circular section is
• (a) 1/3
• (b) 2/3
• (c) 3/3
• (d) None

ANS:(d)

1. The ratio of maximum shear stress to average shear stress in a beam of circular section is
• (a) 4/3
• (b) 5/3
• (c) 6/3
• (d) None

ANS:(a)

1. The ratio of maximum shear stress to average shear stress in a beam of triangular section is
• (a) 1.5
• (b) 2.5
• (c) 3.5
• (d) None

ANS:(a)

1. The ratio of maximum shear stress to average shear stress in a beam of triangular section is
• (a) 1
• (b) 2
• (c) 3
• (d) None

ANS:(d)

1. The ratio of shear stress in the lowermost fiber of a flange and the shear stress in the uppermost fiber of a web is
• (a) >1
• (b) < 1
• (c) =1
• (d) None

ANS:(b)

1. Greater portion of shear force in a beam of I-section is shared by
• (a) Lower flange
• (b) Upper flange
• (c) Web
• (d) None

ANS:(c)

1. Greater portion of bending moment in a beam of I-section is shared by
• (a) Flanges
• (b) Web
• (c) Equally by the flanges and the we
• (d) None

ANS: (a)

1. Shear center in case of a channel section beam will lie

(a) Within the cross section

• (b) Outside the cross section
• (c) On the outer edge of the section
• (d) None

ANS: (b)

1. Shear center in case of a I- section beam will lie
• (a) Within the cross section
• (b) Outside the cross section
• (c) On the outer edge of the section
• (d) None

ANS: (a)