Design of Steel Structures

301. When a load is transferred through one surface to another surface in contact, the stress is known as

1. Tensile stress
2. Compressive stress
3. Shearing stress
4. None of these

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302. When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from

1. Each web
2. Each flange
3. Each web or one hole from each flange whichever is more
4. Each web or one hole from each flange whichever is less

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303. When a tension member is made of four angles with a plate as a web, the allowance for holes is made as

1. Two holes for each angle and one hole for the web
2. One hole for each angle and one hole for the web
3. One hole for each angle and two holes for the web
4. Two holes for each angle and two holes for the web

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304. When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate).

1. 8 t
2. 16 t
3. 24 t
4. 32 t

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305. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (Where, 'Fa' is the load shared by each rivet due to axial laod and 'Fm' is the shearing load due to moment in any vivet.)

1. Is at the maximum distance from CG of the rivet group
2. Is at the minimum distance from CG of the rivet group
3. Gives the maximum angle between the two forces Fa and Fm
4. Gives the minimum angle between the two forces Fa and Fm

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306. When the axis of load lies in the plane of rivet group, then the rivets are subjected to

1. Only shear stresses
2. Only tensile stresses
3. Both (A) and (B)
4. None of the above

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307. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

1. Black bolt
2. Ordinary unfinished bolt
3. Turned and fitted bolt
4. High strength bolt

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308. 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

1. 2
2. 4
3. 6
4. 8

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309. When the length of a tension member is too long

1. A wire rope is used
2. A rod is used
3. A bar is used
4. A single angle is used

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310. When the ratio of the moment M to axial load P is greater than L/6, the resultant of the compressive bearing pressure which acts at a distance Y from one side, is given by

1. y = (L/3) - (M/P)
2. y = (L/2) - (P/M)
3. y = (L/2) + (M/P)
4. y = (L/3) + (M/P)

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