Shape factor is a property which depends

both on the yield stress and ultimate stress of material

only on the ultimate stress of the material

only on the yield stress of the material

only on the geometry of the section

both on the yield stress and ultimate stress of material

If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than

1.25 d but not less than 0.33 d

Slenderness ratio of a compression member is

radius of gyration/ area of cross-section

moment of inertia/radius of gyration

effective length/area of cross-section

radius of gyration/effective length

radius of gyration/ area of cross-section

The equivalent axial load may be defined as the load which produces a stress equal to

maximum stress produced by the eccentric load

In case of timber structures, the simple bending formula M = fz may be applied for

rectangular beams up to 300 mm depth

Diameter of a rivet hole is made larger than the diameter of the rivet by

1.0 mm for rivet diameter upto 12 mm

1.5 mm for rivet diameter exceeding 25 mm

2.0 mm for rivet diameter over 25 mm

Design of a riveted joint, is based on the assumption:

load is uniformly distributed among all the rivets

shear stress on a rivet is uniformly distributed over its gross area

bearing stress in the rivet is neglected

Outstanding length of a compression member consisting of a channel, is measured as

from the edge to the first row of rivets

The use of tie plates in laced columns is

permitted between two parts of the lacing

permitted at start and end of lacing system only

permitted between two parts of the lacing

The main assumption of the method of simple design of steel frame work, is:

all connections of beams, girders and trusses are virtually flexible

members in compression are subjected to forces applied at appropriate eccentricities

The thickness t of a single flat lacing should not be less than

1/50th length between inner end rivets

1/30th length between inner end rivets

1/40th length between inner end rivets

1/50th length between inner end rivets

1/60th length between inner end rivets

Tongue plates are provided in a steel girder at

the upper and lower ends of the web

On steel structures the dead load is the weight of

material fastened to steel work

Length of an outstanding leg of a vertical stiffener, may be taken equal to

1/30th of clear depth of the girder plus 50 mm

1/10th of clear depth of the girder plus 15 mm

1/20th of clear depth of the girder plus 20 mm

1/25th of clear depth of the girder plus 25 mm

1/30th of clear depth of the girder plus 50 mm

272 + Mcqs in Design Of Steel Structures in Civil Engineering Page 4 McqOptions

151.	Shape factor is a property which depends
A.	only on the ultimate stress of the material
B.	only on the yield stress of the material
C.	only on the geometry of the section
D.	both on the yield stress and ultimate stress of material
Answer» D. both on the yield stress and ultimate stress of material

Discussion

152.	As per ISI, rolled steel beam sections are classified into
A.	two series
B.	three series
C.	four series
D.	five series
Answer» E.

Discussion

153.	For a column of height fixed in position and direction both at its top and bottom, its effective length, is
A.	l
B.	l
C.	Â½ l
D.	2l
Answer» D. 2l

Discussion

154.	The strength of ISA 125 = 75 Ã— 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is
A.	26,000 kg
B.	26,025 kg
C.	26,050 kg
D.	26,075 kg
Answer» E.

Discussion

155.	A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than
A.	d/250 for structural steel
B.	d/225 for high tensile steel
C.	both (c) and (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

Discussion

156.	The allowable tensile stress in structural mild steel plates for steel tank is assumed as
A.	95.0 mpa on net area
B.	105.5 mpa on net area
C.	105.5 mpa on gross area
D.	150.0 mpa on gross area
Answer» C. 105.5 mpa on gross area

Discussion

157.	If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than
A.	d but not less than 0.20 d
B.	1.25 d but not less than 0.33 d
C.	1.5 d but not less than 0.33 d
D.	2.0 d but not less than 0.50 d
Answer» C. 1.5 d but not less than 0.33 d

Discussion

158.	If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than
A.	d
B.	1.25 d
C.	1.5 d
D.	1.75 d
Answer» D. 1.75 d

Discussion

159.	The basic wind speed is specified at a height 'h' above mean ground level in an open terrain. The value of 'h' is
A.	10 m
B.	20 m
C.	25 m
D.	50 m
Answer» B. 20 m

Discussion

160.	Web crippling generally occurs at the point where
A.	bending moment is maximum
B.	shearing force is minimum
C.	concentrated loads act
D.	deflection is maximum
Answer» D. deflection is maximum

Discussion

161.	The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to
A.	150 t
B.	160 t
C.	170 t
D.	180 t
Answer» E.

Discussion

162.	Slenderness ratio of a compression member is
A.	moment of inertia/radius of gyration
B.	effective length/area of cross-section
C.	radius of gyration/effective length
D.	radius of gyration/ area of cross-section
Answer» D. radius of gyration/ area of cross-section

Discussion

163.	Economical depth of a plate girder corresponds to
A.	minimum weight
B.	minimum depth
C.	maximum weight
D.	minimum thickness of web
Answer» B. minimum depth

Discussion

164.	For a cantilever beam of length built-in at the support and restrained against torsion at the free end, the effective projecting length is
A.	l = 0.7 l
B.	l = 0.75 l
C.	l = 0.85 l
D.	l = 0.5 l
Answer» C. l = 0.85 l

Discussion

165.	The method of design of steel framework for greatest rigidity and economy in weight, is known as
A.	simply design
B.	semi-rigid design
C.	fully rigid design
D.	none of these
Answer» D. none of these

Discussion

166.	The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
A.	1.8 l
B.	l
C.	1.1 l
D.	1.5 l
Answer» D. 1.5 l

Discussion

167.	According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to
A.	1.0% of the axial load
B.	2.0% of the axial load
C.	2.5% of the axial load
D.	3.0% of the axial load
Answer» D. 3.0% of the axial load

Discussion

168.	Rolled steel angle sections are classified as
A.	equal angles
B.	unequal angles
C.	bulb angles
D.	all the above
Answer» E.

Discussion

169.	Bolts are most suitable to carry
A.	shear
B.	bending
C.	axial tension
D.	shear and bending
Answer» D. shear and bending

Discussion

170.	The channels get twisted symmetrically with regard to its axis
A.	parallel to flanges
B.	parallel to web
C.	perpendicular to flanges
D.	perpendicular to web
Answer» C. perpendicular to flanges

Discussion

171.	The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as
A.	unstiffened seated connection
B.	stiffened seated connection
C.	seated connection
D.	none of these
Answer» D. none of these

Discussion

172.	If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
A.	120 mm
B.	160 mm
C.	200 mm
D.	300 mm
Answer» C. 200 mm

Discussion

173.	Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is
A.	1.5 l
B.	0.67 l
C.	0.85 l
D.	2 l
Answer» E.

Discussion

174.	Effective length of a column effectively held in position and restrained in direction at both ends, is
A.	l
B.	0.67 l
C.	0.85 l
D.	1.5 l
Answer» C. 0.85 l

Discussion

175.	The equivalent axial load may be defined as the load which produces a stress equal to
A.	maximum stress produced by the eccentric load
B.	maximum stressed fibre
C.	bending stress
D.	none of these
Answer» B. maximum stressed fibre

Discussion

176.	Perforated cover plates are particularly suitable for built up sections consisting of
A.	channels placed back to back
B.	channels placed toe to toe
C.	four angle box section
D.	all the above
Answer» D. all the above

Discussion

177.	For rivets in tension with countersunk heads, the tensile value shall be
A.	reduced by 25 %
B.	reduced by 33.3%
C.	increased by 25 %
D.	increased by 33.3 %
Answer» C. increased by 25 %

Discussion

178.	In case of timber structures, the simple bending formula M = fz may be applied for
A.	rectangular beams up to 300 mm depth
B.	all rectangular beams
C.	solid circular beams only
D.	all square cross-section beams
Answer» B. all rectangular beams

Discussion

179.	According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as
A.	0.000008
B.	0.000010
C.	0.000012
D.	0.000014
Answer» D. 0.000014

Discussion

180.	Diameter of a rivet hole is made larger than the diameter of the rivet by
A.	1.0 mm for rivet diameter upto 12 mm
B.	1.5 mm for rivet diameter exceeding 25 mm
C.	2.0 mm for rivet diameter over 25 mm
D.	none of these
Answer» D. none of these

Discussion

181.	The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of
A.	the effective span
B.	1.25 times the effective span
C.	1.50 times the effective span
D.	2.0 times the effective span
Answer» C. 1.50 times the effective span

Discussion

182.	If is the maximum allowable bending stress in a tension member whose radius of gyration is and depth is 2y, the required cross sectional area is given by
A.	a = my/frÂ²
B.	a = myÂ²/frÂ²
C.	a = my/fr
D.	a = my/fÂ²rÂ²
Answer» B. a = myÂ²/frÂ²

Discussion

183.	Design of a riveted joint, is based on the assumption:
A.	load is uniformly distributed among all the rivets
B.	shear stress on a rivet is uniformly distributed over its gross area
C.	bearing stress in the rivet is neglected
D.	all the above
Answer» E.

Discussion

184.	According to IS : 800-1962 the permissible bending stress in steel slab plates, is
A.	1500 kg/cm2
B.	1420 kg/cm2
C.	2125 kg/cm2
D.	1890 kg/cm2
Answer» E.

Discussion

185.	The minimum pitch of rivet holes of diameter d should not be less than
A.	d
B.	1.25 d
C.	1.5 d
D.	2.5 d
Answer» E.

Discussion

186.	The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula
A.	t = wl/4r
B.	t = wr/8l
C.	t = wl/8r
D.	t = wl/2r
Answer» D. t = wl/2r

Discussion

187.	Outstanding length of a compression member consisting of a channel, is measured as
A.	half of the nominal width
B.	nominal width of the section
C.	from the edge to the first row of rivets
D.	none of these
Answer» C. from the edge to the first row of rivets

Discussion

188.	The use of tie plates in laced columns is
A.	prohibited
B.	not prohibited
C.	permitted at start and end of lacing system only
D.	permitted between two parts of the lacing
Answer» D. permitted between two parts of the lacing

Discussion

189.	The slenderness ratio of a column supported throughout its length by a masonry wall is
A.	zero
B.	10
C.	100
D.	infinity
Answer» B. 10

Discussion

190.	The main assumption of the method of simple design of steel frame work, is:
A.	beams are simply supported
B.	all connections of beams, girders and trusses are virtually flexible
C.	members in compression are subjected to forces applied at appropriate eccentricities
D.	all the above
Answer» E.

Discussion

191.	Bending compressive and tensile stresses respectively are calculated based on
A.	net area and gross area
B.	gross area and net area
C.	net area in both cases
D.	gross area in both cases
Answer» C. net area in both cases

Discussion

192.	The thickness t of a single flat lacing should not be less than
A.	1/30th length between inner end rivets
B.	1/40th length between inner end rivets
C.	1/50th length between inner end rivets
D.	1/60th length between inner end rivets
Answer» C. 1/50th length between inner end rivets

Discussion

193.	The economical depth d of a web plate in which allowable bearing stress is fb, and the maximum bending moment is M, as suggested by Rawater and Clark, is
A.	d = (m/fb)
B.	d = 1.5 (m/fb)
C.	d = 2.5 (m/fb)
D.	d = 4.5 (m/fb)
Answer» E.

Discussion

194.	Tongue plates are provided in a steel girder at
A.	the upper flange
B.	the lower flange
C.	the upper end of the web
D.	the upper and lower ends of the web
Answer» E.

Discussion

195.	The area Ap of cover plates in one flange of a built up beam, is given by
A.	ap = zreqr + zbeam/h
B.	ap = zreqr + zbeam/a
C.	ap = zreqr Ã— zbeam/h
D.	ap = zreqr - zbeam/h
Answer» E.

Discussion

196.	A steel beam supporting loads from the floor slab as well as from wall is termed as
A.	stringer beam
B.	lintel beam
C.	spandrel beam
D.	header beam
Answer» D. header beam

Discussion

197.	On steel structures the dead load is the weight of
A.	steel work
B.	material fastened to steel work
C.	material supported permanently
D.	all the above
Answer» E.

Discussion

198.	If the depth of two column sections is equal, then the column splice is provided
A.	with filler plates
B.	with bearing plates
C.	with filler and hearing plates
D.	none of these
Answer» E.

Discussion

199.	Length of an outstanding leg of a vertical stiffener, may be taken equal to
A.	1/10th of clear depth of the girder plus 15 mm
B.	1/20th of clear depth of the girder plus 20 mm
C.	1/25th of clear depth of the girder plus 25 mm
D.	1/30th of clear depth of the girder plus 50 mm
Answer» D. 1/30th of clear depth of the girder plus 50 mm

Discussion

200.	The least dimensio D
A.	0.5 d
B.	0.68 d
C.	0.88 d
D.	d
Answer» D. d

Discussion

Explore topic-wise MCQs in Civil Engineering.

Shape factor is a property which depends

As per ISI, rolled steel beam sections are classified into

For a column of height fixed in position and direction both at its top and bottom, its effective length, is

The strength of ISA 125 = 75 Ã— 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is

A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than

The allowable tensile stress in structural mild steel plates for steel tank is assumed as

If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance not greater than

If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than

The basic wind speed is specified at a height 'h' above mean ground level in an open terrain. The value of 'h' is

Web crippling generally occurs at the point where

The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to

Slenderness ratio of a compression member is

Economical depth of a plate girder corresponds to

For a cantilever beam of length built-in at the support and restrained against torsion at the free end, the effective projecting length is

The method of design of steel framework for greatest rigidity and economy in weight, is known as

The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as

According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to

Rolled steel angle sections are classified as

Bolts are most suitable to carry

The channels get twisted symmetrically with regard to its axis

The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as

If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as

Effective length of a column effectively held in position and restrained in direction at one end but neither held in position nor restrained in direction at the other end, is

Effective length of a column effectively held in position and restrained in direction at both ends, is

The equivalent axial load may be defined as the load which produces a stress equal to

Perforated cover plates are particularly suitable for built up sections consisting of

For rivets in tension with countersunk heads, the tensile value shall be

In case of timber structures, the simple bending formula M = fz may be applied for

According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as

Diameter of a rivet hole is made larger than the diameter of the rivet by

The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of

If is the maximum allowable bending stress in a tension member whose radius of gyration is and depth is 2y, the required cross sectional area is given by

Design of a riveted joint, is based on the assumption:

According to IS : 800-1962 the permissible bending stress in steel slab plates, is

The minimum pitch of rivet holes of diameter d should not be less than

The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula

Outstanding length of a compression member consisting of a channel, is measured as

The use of tie plates in laced columns is

The slenderness ratio of a column supported throughout its length by a masonry wall is

The main assumption of the method of simple design of steel frame work, is:

Bending compressive and tensile stresses respectively are calculated based on

The thickness t of a single flat lacing should not be less than

The economical depth d of a web plate in which allowable bearing stress is fb, and the maximum bending moment is M, as suggested by Rawater and Clark, is

Tongue plates are provided in a steel girder at

The area Ap of cover plates in one flange of a built up beam, is given by

A steel beam supporting loads from the floor slab as well as from wall is termed as

On steel structures the dead load is the weight of

If the depth of two column sections is equal, then the column splice is provided

Length of an outstanding leg of a vertical stiffener, may be taken equal to

The least dimensio D