MCQs of Loads & Load Combinations (Design of Steel Structures - 2180610)

Design of Steel Structures (2180610) MCQs

MCQs of Loads & Load Combinations

Showing 31 to 40 out of 46 Questions

31.

What is structural response factor?

(a)	Factor denoting the acceleration response spectrum of the structure subjected to earthquake ground vibrations
(b)	Factor by which the actual base shear force is reduced
(c)	Factor to obtain the design spectrum
(d)	Factor used to obtain the design seismic force

32.

Wind pressure acting normal to individual is element or claddity unit is _________

(a)	F = $[(C_{pe} - C_{pi}) A / p_{d}]$
(b)	F = $[(C_{pe} + C_{pi}) A / p_{d}]$
(c)	F = $[(C_{pe} - C_{pi}) A p_{d}]$
(d)	F = $[(C_{pe} - C_{pi}) / A p_{d}]$

33.

Internal pressure coefficient in a building is positive if acting from ________ and external pressure coefficient in a building is positive if acting from ___________

(a)	Outside to inside, inside to outside
(b)	Inside to outside, outside to inside
(c)	Outside to inside, outside to inside
(d)	Inside to outside, inside to outside

34.

IS Code gives basic wind speed averaged over a short interval of ______

(a)	10 seconds
(b)	20 seconds
(c)	5 seconds
(d)	3 seconds

35.

Positive sign of pressure coefficient indicates ______________

(a)	Pressure acting towards the surface
(b)	Pressure acting away the surface
(c)	Pressure acting above the surface
(d)	Pressure acting below the surface

36.

Wind Pressure at any height of structure does not depend on _______

(a)	Velocity and density of air
(b)	Angle of wind attack
(c)	Angle of wind attack
(d)	Material of structure

37.

Which of the following relation is correct for design wind speed (

V_{z}

) and basic wind speed (

V_{b}

) ?

(a)	$V_{z} α {V_{b}}^{2}$
(b)	$V_{z} α \frac{1}{{V_{b}}^{2}}$
(c)	$V_{z} α V_{b}$
(d)	$V_{z} α \frac{1}{V_{b}}$

38.

Calculate design wind speed for a site in a city with basic wind speed of 50 m/s, risk coefficient =1, topography factor = 1, terrain is with closely spaced buildings and height of building (class A) = 15 m.

(a)	40 m/s
(b)	48.5 m/s
(c)	50 m/s
(d)	52.5 m/s

39.

Which of the following relation between design pressure (

p_{z}

) and design wind speed (

V_{z}

) is correct?

(a)	$p_{z} α {V_{z}}^{2}$
(b)	$p_{z} α \frac{1}{{V_{z}}^{2}}$
(c)	$p_{z} α V_{z}$
(d)	$p_{z} α \frac{1}{V_{z}}$

40.

Calculate the design wind pressure if the basic wind speed is 44 m/s, risk coefficient is 1, topography factor is 1, terrain is with closely spaced buildings and height of building(class A) = 20 m.

(a)	1285 ${N/m}^{2}$
(b)	1580 ${N/m}^{2}$
(c)	1085 ${N/m}^{2}$
(d)	1185 ${N/m}^{2}$

Showing 31 to 40 out of 46 Questions