Practice Test: Question Set - 14
1. For simply supported beams, the maximum permitted deflection, is
- (A) 1/325 of the
span
- (B) 1/350 of the
span
- (C) 1/375 of the
span
- (D) 1/400 of the
span
2. Minimum spacing of vertical stiffeners is limited to
- (A) d/4
- (B) d/3
- (C) d/2
- (D) 2d/3
Where d is the distance between
flange angles
3. The rolled steel I-sections are most commonly used as beams because these provide
- (A) Large moment
of inertia with less cross-sectional area
- (B) Large moment
of resistance as compared to other section
- (C) Greater
lateral stability
- (D) All the
above
4. If P is the wind pressure in kg/cm2, v is the velocity in km/hour and K is a constant of proportionality, then
- (A) P = K/v2
- (B) v = K/P2
- (C) P = Kv2
- (D) P = Kv
5. As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into
- (A) 4 zones
- (B) 5 zones
- (C) 6 zones
- (D) 7 zones
6. Net sectional area of a tension member, is equal to its gross section area
- (A) Plus the
area of the rivet holes
- (B) Divided by
the area of rivet holes
- (C) Multiplied
by the area of the rivet holes
- (D) None of
these
7. For a single section used as a tension member, the given area is assumed
- (A) 20% to 30%
in excess of the net area
- (B) 30% to 40%
in excess of the net area
- (C) 40% to 50%
in excess of the net area
- (D) 50% to 60%
in excess of the net area
8. Study the following statements.
(i) Top lateral bracing prevents the
sides-way buckling of the chord.
(ii) Sway bracing keeps the rectangular
shape of the bridge cross-section.
(iii) Sway bracing transfers the load from
top of end posts to bearings.
The correct answer is
- (A) Only (i)
- (B) Both (i) and (ii)
- (C) Both (i) and (iii)
- (D) All (i), (ii) and (iii)
9. The effective length of a weld, is taken as the actual length
- (A) Minus the
size of weld
- (B) Minus twice
the size of weld
- (C) Plus the
size of weld
- (D) Plus twice
the size of weld
10. The greatest gauge of long rivets should not exceed (where d is the diameter of the holes).
- (A) 2 d
- (B) 4 d
- (C) 6 d
- (D) 8 d
11. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
- (A) 1.5
- (B) 1.7
- (C) 2.0
- (D) 2.34
12. Rolled steel Tee-sections are used
- (A) As columns
- (B) With flat
strips to connect plates in steel rectangular tanks
- (C) As built up
sections to resist axial tension
- (D) None of
these
13. Water pressure in a 80 cm water main is 10 kg/cm2. The minimum thickness of the metal required for the water main, not to be stressed more than 200 kg/cm2, is
- (A) 1 cm
- (B) 1.5 cm
- (C) 2 cm
- (D) 2.5 cm
14. Which of the following types of riveted joint is free from bending stresses?
- (A) Lap joint
- (B) Butt joint with single cover plate
- (C) Butt joint with double cover plates
- (D) None of the above
15. The beams supporting the steps of a stair are generally known as
- (A) Headers
- (B) Trimmers
- (C) Stringers
- (D) Spandrel
beams
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