The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is__________________?

Related Mcqs:

1. If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (f /N)s__________________?

   A. 1/2
   B. 1/3
   C. 1/4
   D. 1/5

2. If and are external and internal diameters of a circular shaft respectively, its polar moment of inertia, is________________?

   A. D4 – d4)
   B. D4 – d4)
   C. D4 – d4)
   D. D4 – d4)

3. The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is___________________?

   A. 1/8
   B. 1/4
   C. 1/2
   D. 1/3

4. a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is___________________?

   A. el/2d
   B. e²l/3d²
   C. el²/3d²
   D. e²l²/3d²

5. If a concrete column 200 × 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec________________?

   A. 264 MN
   B. 274 MN
   C. 284 MN
   D. 294 MN

6. A short column (30 cm × 20 cm) carries a load P 1 at 4 cm on one side and another load P2at 8 cm on the other side along a principal section parallel to longer dimension. If the extreme intensity on either side is same, the ratio of P1 to P2 will be_________________?

   A. 2/3
   B. 3/2
   C. 8/5
   D. 5/8

7. A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is______________?

   A. 4WD²n/d4N
   B. 4W²Dn/d4N
   C. 4W²D3n/d4N
   D. 4W²D3n²/d4N

8. A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is________________?

   A. 4.0 mm
   B. 4.5 mm
   C. 5.0 mm
   D. 5.5 mm

9. The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is__________________?

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

10. section modulus of a square section of side B and that of a circular section of The ratio of the diameter D, is___________________?

    A. 2 /15
    B. 3 /16
    C. 3 /8
    D. /16