Related Questions

কাগজের ভার হিসাবে ব্যবহৃত একটি পুরু কাচ (প্রতিসরাঙ্ক 1.5) খন্ডের উপর থেকে খাড়া নীচের দিকে তাকালে কাগজের উপর একটি দাগ কাচের উপর প্রান্ত থেকে 6 cm নীচে দেখা যায়। কাচ খন্ডতির পুরুত্ব কত? (When you look downward from the top of a thick glass (refractive index 1.5) slab used as a paper weight, a mark on the paper is seen 6 cm below from the top of the slab. What is the thickness of the glass slab?)
A 4 cm
B 6 cm
C 9 cm
D 12 cm
কাগজের ভার হিসাবে ব্যবহৃত একটি পুরু কাচ (প্রতিসরাঙ্ক 1.5) খণ্ডের উপর থেকে খাড়া নীচের দিকে তাকালে কাগজের উপর একটি দাগ কাচের উপর প্রান্ত থেকে 6 cm নীচে দেখা যায়। কাচ খন্ডটির পুরুত্ব কত? (When you look downward from the top of a thick glass (refractive index 1.5) slab used as a paper weight, a mark on the paper is seen 6 cm below from the top of the slab. What is the thickness of the glass slab?)
A 4 cm
B 6 cm
C 9 cm
D 12 cm
The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
A 10 mm
B 15 mm
C 20 mm
D 25 mm
The minimum horizontal distance between two parallel main reinforcing bars, is
A The diameter of the bar if their diameters are same
B The diameter of the longer bar if their diameters are unequal
C 5 mm more than nominal maximum size of the coarse aggregate
D Greatest value of the above
The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone
A Compressive stress
B Shear stress
C Bond stress
D Tensile stress
For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than
A 15 mm
B 25 mm
C 30 mm
D 40 mm
If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least __________ of main reinforcement.
A 40%
B 50%
C 60%
D 70%
An R.C.C. roof slab is designed as a two way slab if
A It supports live loads in both directions
B The ratio of spans in two directions is less than 2
C The slab is continuous over two supports
D The slab is discontinuous at edges
If ‘W’ is the load on a circular slab of radius ‘R’, the maximum radial moment at the centre of the slab, is
A $$\frac{{{\text{W}}{{\text{R}}^2}}}{{16}}$$
B $$\frac{{2{\text{W}}{{\text{R}}^2}}}{{16}}$$
C $$\frac{{3{\text{W}}{{\text{R}}^2}}}{{16}}$$
D $$\frac{{5{\text{W}}{{\text{R}}^2}}}{{16}}$$
If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is
A $$\frac{{{\text{W}}{{\text{R}}^2}}}{{16}}$$
B $$\frac{{2{\text{W}}{{\text{R}}^2}}}{{16}}$$
C $$\frac{{3{\text{W}}{{\text{R}}^2}}}{{16}}$$
D Zero

Next steps