Normally, the angle of roof truss with asbestos sheets should not be less than_______________?

Related Mcqs:

1. To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be_______________?

   A. 1
   B. 2
   C. 3
   D. 4

2. The maximum permissible span of asbestos cement sheets is______________________?

   A. 650 mm
   B. 810 mm
   C. 1250 mm
   D. 1680 mm

3. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as_______________?

   A. 0.65 kN/m2
   B. 0.75 kN/m2
   C. 1.35 kN/m2
   D. 1.50 kN/m2

4. Hudson’s formula gives the dead weight of a truss bridge as a function of_________________?

   A. bottom chord area
   B. top chord area
   C. effective span of bridge
   D. heaviest axle load of engine

5. The portal bracing in a truss bridge is used to_____________________?

   A. transfer load from top of end posts to bearings
   B. keep the rectangular shape of the bridge cross-section
   C. stiffen the structure laterally
   D. prevent the sidesway buckling of top chord

6. The external wind pressure acting on a roof depends on__________________?

   A. degree of permeability of roof
   B. slope of roof
   C. both (A) and (B)
   D. none of the above

7. For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as__________________?

   A. zero
   B. ±0.2p
   C. ± 0.5 p
   D. ±0.7p
   where p is basic wind pressure

8. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between____________________?

   A. 10° to 30°
   B. 30° to 40°
   C. 40° to 70°
   D. 90°

9. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

   A. equal angles back to back
   B. unqual legged angles with long legs back to back
   C. unequal legged angles with short legs back to back
   D. both (B) or (C)

10. The moment of inertia of the pair of vertical stiffeners about the center line of the web should not be less than__________________?

    A. 1.5dV/C
    B. 1.5d¥/C
    C. 1.5d¥/C2
    D. 1.5dY/C3

    where, ‘t’ is the minimum required thick-ness of the web and ‘C is the maximum permitted clear distance between vertical stiffener for thickness ‘t’