Practice Test: Question Set - 11
1. The strength of ISA 125 = 75 × 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is
- (A) 26,000 kg
- (B) 26,025 kg
- (C) 26,050 kg
- (D) 26,075 kg
2. The effect of racking forces is considered in the design of
(i) Lateral braces
(ii) Chord members
The correct answer is
- (A) Only (i)
- (B) Only (ii)
- (C) Both (i) and (ii)
- (D) None of the above
3. For a column of height ‘L’ fixed in position and direction both at its top and bottom, its effective length, is
- (A) L
- (B) 1/√2 × L
- (C) ½ L
- (D) 2L
4. As per ISI, rolled steel beam sections are classified into
- (A) Two series
- (B) Three series
- (C) Four series
- (D) Five series
5. Shape factor is a property which depends
- (A) Only on the ultimate stress of the material
- (B) Only on the yield stress of the material
- (C) Only on the geometry of the section
- (D) Both on the yield stress and ultimate stress
of material
6. A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed
- (A) 180
- (B) 200
- (C) 300
- (D) 350
7. Pick up the correct statement from the following:
- (A) Tacking
rivets are used if the minimum distance between centres of two adjacent rivets
exceeds 12 t or 200 mm, whichever is less
- (B) Tacking
rivets are not considered to calculate stress
- (C) Tacking
rivets are provided throughout the length of a compression member composed of
two components back to back
- (D) All the
above
8. Lug angles
- (A) Are used to reduce the length of connection
- (B) Are unequal angles
- (C) Increases shear lag
- (D) All the above
9. The Indian standard code which deals with steel structures, is
- (A) IS : 875
- (B) IS : 800
- (C) IS : 456
- (D) IS : 1893
10. Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).
- (A) fb = W/(b + h√3)tw
- (B) fb = W/(b + 2h√3)tw
- (C) fb = W/(b + 2h√2)tw
- (D) fb = W/(b + h√2)tw
11. When the axis of load lies in the plane of rivet group, then the rivets are subjected to
- (A) Only shear stresses
- (B) Only tensile stresses
- (C) Both (A) and (B)
- (D) None of the above
12. For double angles carrying tension, placed back to back and connected to either side of the gusset plate, the sectional area of the section, is equal to cross sectional area of
- (A) The section
- (B) The section
plus area of rivet holes
- (C) The section
minus area of rivet holes
- (D) The section
multiplied by the area of the rivet hole
13. The beam outside a wall up to floor level above it, is known as
- (A) Rafter
- (B) Purlin
- (C) Spandrel
beam
- (D) Lintel
14. In the cross-section of a weld, throat is the
- (A) Minimum dimension
- (B) Average dimension
- (C) Maximum dimension
- (D) None of the above
15. The rivets which are heated and then driven in the field, are known
- (A) Power driven
shop rivets
- (B) Power driven
field rivets
- (C) Hand driven rivets
- (D) Cold driven
rivets
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