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75. The shear capacity of bolts is reduced

|) When total thickness of connected plates exceeds 5 times the nominal
diameter of bolts.

Il) When packing plates are more than 6 mm thick.

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Both the above statements are true as bolts are subjected to bending

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)

) Only the second statement is correct

) Shear capacity of bolt is evaluated without considering the above factors
)

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Only the first statement is correct

76. An unequal angle is connected using one leg and used as a tension member. Which
leg is to be connected ?

A) Long leg to be connected

B) Short leg to be connected as it is more efficient to take care of shear lag effects
C) Which leg is connected is immaterial
D) Depending upon the type of connection like welding or bolting, the connected

leg to be selected

77. Asimply supported concrete beam of effective span 8 m is given a parabolic tendon
profile for load balancing. If the gravity load applied is 20 kN/m and prestressing force
is 1600 kN, the central dip of cable profile is

A) 0.1m B) 0.2m ©) 0.3m D) 0.15m

78. The final deflection due to all loads including the effects of temperature, creep and
shrinkage and measured from the as-cast level of the supports of floors, roofs and
all other horizontal members, should not normally exceed span/X where X is

A) 300 B) 350 C) 250 D) 400

79. The unfactored dead-20 kN/m, live 15 kN/m and wind 10 KN/m loads are available
for a beam design. The design load for limit state design is

A) 52.5 7 B) 54 kN/m C) 45 kN/m D) 33 ۳

80. The maximum effective slenderness ratio for a member subjected to compressive forces
resulting only from combination of wind or earthquake actions, such that the deformation
of such member does not adversely affect stresses in any part of structure is

A) 300 B) 250 C) 180 D) 350