127.  The minimum width B of a solid casing for a cased beam, is equal to
A. B = + 25 mm
B. B = b + 50 mm
C. B = + 75 mm
D. B = b + 100 mm

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128.  A web plate is called unstiffened if the ratio of clear depth to thickness is less than
A.35
B.50
C.60
D.85

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129.  The distance between c.g. of compression and e.g. of tension flanges of a plate girder, is known as
A. overall depth
B. clear depth
C. effective depth
D. none of these.

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130.  In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at the top and bottom of a plate girder, is known as
A. overall depth
B. clear depth
C. effective depth
D. none of these.

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131. The distance between the outer faces of flanges of a plate girder, is known as
A. overall depth
B. clear depth
C. effective depth
D. none of these.

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132.  When the depth of a plate girder is at least n times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if n is
A.2
B.4
C.6
D.8

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133.  The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web, is less than
A.45
B.55
C.60
D.82

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