MCQs of Limit state design of RC structural Element (Design of Structures - 3150612)

Design of Structures (3150612) MCQs

MCQs of Limit state design of RC structural Element

Showing 41 to 50 out of 155 Questions

41.

In R.C. T beam the web and flange are more effective in resisting

(a)	Bending and shear respectively
(b)	Shear and bending respectively
(c)	Both bending and shear
(d)	None of above

42.

A 12m long R.C T-beam is spaced at 3.25m with web of 0.4m wide and 1m deep, supports flange slab of 100mm thick, The effective flange width of beam will be

(a)	3 m
(b)	3.25 m
(c)	2.5 m
(d)	2.0 m

43.

As per IS-456, Effective width of flange for R.C. T beam is expressed as

(a)	$\frac{l_{0}}{6} + b_{w} + 6 D_{f}$
(b)	$\frac{l_{0}}{12} + b_{w} + 3 D_{f}$
(c)	$\frac{l_{0}}{6} + b_{w}$
(d)	$b_{w} + 6 D_{f}$

44.

As per IS-456, Effective width of flange for R.C. L- beam is expressed as

(a)	$\frac{l_{0}}{6} + b_{w} + 6 D_{f}$
(b)	$\frac{l_{0}}{12} + b_{w} + 3 D_{f}$
(c)	$\frac{l_{0}}{6} + b_{w}$
(d)	$b_{w} + 6 D_{f}$

45.

In effective width of flange formula Lo defined as distance between points of zero moment, is considered due to

(a)	Beyond Lo , flange will be in tension and ineffective
(b)	within Lo stresses are uniform
(c)	Strain compatibility
(d)	None of above

46.

If T beam is under-reinforced and neutral axis lies in web, then stress in flange is uniform only if

(a)	$\frac{D_{f}}{X_{u}} \leq 0.43$
(b)	$D_{f} \leq 0.43$
(c)	$\frac{D_{f}}{X_{u}} \geq 0.43$
(d)	$\frac{D_{f}}{d} \geq 0.43$

47.

If flange thickness is larger than 0.2 d, section is balanced and neutral axis falls in web, then effective thickness of flange is expressed as

(a)	$y_{f} = (0.15 X_{m a x} + 0.65 D_{f}) > D_{f}$
(b)	$y_{f} = (0.416 X_{u m a x} + 0.65 D_{f}) < D_{f}$
(c)	$y_{f} = (0.15 X_{m a x} + 0.65 D_{f}) < D_{f}$
(d)	$y_{f} = (0.416 X_{u m a x} + 0.65 D_{f}) > D_{f}$

48.

A part of the slab may be considered as the flange of the T-beam if

(a)	Flange has adequate reinforcement transverse to beam
(b)	It is built integrally with the beam
(c)	It is effectively bonded together with the beam
(d)	All of above

49.

A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

(a)	Remains within the flange
(b)	Remains below the slab
(c)	Coincides the geometrical center of the beam
(d)	None of above

50.

The main reinforcement in R.C.C cantilever beam is placed at

(a)	Top face along span
(b)	Bottom face along width
(c)	Top face along span
(d)	Vertical parallel to depth

Showing 41 to 50 out of 155 Questions