The horizontal portion of a step in a stairs case, is known as_________________?

Related Mcqs:

1. For stairs spanning l metres longitudinally between supports at the bottom and top of a flight carrying a load w per unit horizontal area, the maximum bending moment per metre width, is_______________?

   A. wl²/4
   B. wl²/8
   C. wl²/12
   D. wl²/16

2. In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as___________________?

   A. A key
   B. A cut-off wall
   C. A rib
   D. All the above

3. A very comfortable type of stairs is_______________?

   A. Straight
   B. Dog legged
   C. Geometrical
   D. Open newel

4. If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as___________________?

   A. wl²/4
   B. wl²/8
   C. wl²/10
   D. wl²/12

5. For stairs spanning horizontally, the minimum waist provided is________________?

   A. 4 cm
   B. 6 cm
   C. 8 cm
   D. 12 cm

6. A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is_____________________?

   A. WL/P
   B. WL/2P
   C. WL/3P
   D. WL/4P

7. The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?

   A. Twice the diameter
   B. Thrice the diameter
   C. Four times the diameter
   D. Seven times the diameter

8. Minimum spacing between horizontal parallel reinforcement of the same size should not be less than________________?

   A. One diameter
   B. 2.5 diameters
   C. 3 diameters
   D. 3.5 diameters

9. If p1 and P2 are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is____________________?

   A. [( – )/2] h
   B. [( + )/4] h
   C. [( + )/2] h
   D. ( – h

10. Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to__________________?

    A. Shear force
    B. Area of the section
    C. Distance of the C.G. of the area from its neutral axis
    D. Moment of the beam section about its neutral axis