splits into thin sheets along its bedding planes

has a smooth surface and contains alumina and silica

possesses good water absorption capacity

Raft foundations are used for :

providing increased area of foundation over poor bearing capacity of soil

spanning over small soft or loose pockets

counter acting the hydrostatic effect

Weep holes are provided in retaining and breast walls

to drain off the water from the filling

to reduce the weight of the earth retained

In the method of tube boring of soil investigation, the following is essential :

a tube of about 2 metres length and 20 cm diameter with a cutting edge

a flap valve at the bottom of tube is provided to extract the soil sample

the tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand

341 + Mcqs in Construction in Dc Machines Page 3 McqOptions

101.	The window which projects outside a room of a building for admitting more light and air, is known
A.	bay window
B.	casement window
C.	lantern window
D.	dormer window.
Answer» B. casement window

Discussion

102.	Slate
A.	is a metamorphic rock
B.	splits into thin sheets along its bedding planes
C.	has a smooth surface and contains alumina and silica
D.	possesses good water absorption capacity
Answer» B. splits into thin sheets along its bedding planes

Discussion

103.	The maximum permissible differential settlement, in case of foundations in clayey soil, is usually limited to
A.	10 mm
B.	20 mm
C.	30 mm
D.	40 mm
Answer» E.

Discussion

104.	A floor constructed with the 4 to 6 mm marble chips, is known
A.	reinforced marble floor
B.	terrazo floor
C.	marble floor
D.	chip floor
Answer» C. marble floor

Discussion

105.	The nominal thickness of one brick wall in mm, is
A.	90 mm
B.	150 mm
C.	190 mm
D.	200 mm.
Answer» E.

Discussion

106.	The angle between skew back of a flat arch and the horizontal, is kept approximately equal to
A.	0°
B.	30°
C.	60°
D.	90°
Answer» D. 90°

Discussion

107.	The arrangement made to support an unsafe structure temporarily, is known as
A.	shoring
B.	scaffolding
C.	underpinning
D.	jacking
Answer» B. scaffolding

Discussion

108.	A concrete structure is set on fire and the temperature raises to 1000°C. The strength of concrete as compared to original strength reduces to
A.	10%
B.	15%
C.	20%
D.	25%.
Answer» D. 25%.

Discussion

109.	Bearing capacity of soils cannot be improved by
A.	draining sub-soil water
B.	ramming crushed stone in soil
C.	driving sand piles
D.	watering surface of soil
Answer» E.

Discussion

110.	Suitable spacing of timber piles, is
A.	50 cm
B.	60 cm
C.	70 cm
D.	90 cm.
Answer» E.

Discussion

111.	The projections of head or sill of a door or window frame, are
A.	transoms
B.	horns
C.	stops
D.	chocks.
Answer» C. stops

Discussion

112.	Open test pit is only suitable upto a depth of
A.	2 metres
B.	2.5 metres
C.	3 metres
D.	none of the above.
Answer» D. none of the above.

Discussion

113.	The compaction of concrete in the drilled pile hole is done by compressed air in the case of
A.	simplex pile
B.	Franki pile
C.	pressure pile
D.	vibro pile.
Answer» D. vibro pile.

Discussion

114.	The vertical members fixed between steps and hand rail, are known
A.	balusters
B.	strings
C.	newel posts
D.	soffits.
Answer» B. strings

Discussion

115.	For brick construction, the lime-sand mortar, is
A.	1:1
B.	1:2
C.	1:3
D.	1:4
Answer» C. 1:3

Discussion

116.	The brick laid with its length parallel to the face of a wall, is a known as
A.	header
B.	stretcher
C.	closer
D.	none of these.
Answer» C. closer

Discussion

117.	The stone whose crushing strength is least, is
A.	granite
B.	chalk
C.	marble
D.	slate
Answer» C. marble

Discussion

118.	The pile which supports the load due to friction between pile face and surrounding soil, is generally known as
A.	bearing pile
B.	friction pile
C.	sheet pile
D.	battered pile.
Answer» C. sheet pile

Discussion

119.	The width of the hollow space between two walls of a cavity wall should not exceed
A.	5 cm
B.	7.5 cm
C.	10 cm
D.	15 cm.
Answer» D. 15 cm.

Discussion

120.	The skirting/dado in a bath roof should be upto
A.	ceiling
B.	15 cm above floor level
C.	200 cm
D.	level of the tap.
Answer» D. level of the tap.

Discussion

121.	In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to
A.	15 mm
B.	25 mm
C.	35 mm
D.	45 mm
Answer» C. 35 mm

Discussion

122.	Rotary drilling is the fastest method in case of
A.	rocky soils
B.	clay soils
C.	sandy soil
D.	all of these.
Answer» E.

Discussion

123.	The platform at the end of a series of steps, is known as
A.	platform
B.	relief
C.	rest
D.	landing
Answer» E.

Discussion

124.	While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful :
A.	pile formation
B.	raft foundation
C.	grillage foundation
D.	none of these.
Answer» C. grillage foundation

Discussion

125.	A wooden block fixed on back side of a door frame on its post, is known as
A.	cleat
B.	stop
C.	horn
D.	none of these.
Answer» C. horn

Discussion

126.	Exposed portions of vertical surface at right angles to the door or window frame, are known as
A.	jambs
B.	lintels
C.	reveals
D.	soffits.
Answer» D. soffits.

Discussion

127.	The nominal thickness of an expansion joint in brick walls, is kept more than
A.	5 mm
B.	10 mm
C.	15 mm
D.	20 mm
Answer» E.

Discussion

128.	The steel pile which is generally sunk in soft clay or loose sand of low bearing capacity, is
A.	H-pile
B.	pipe pile
C.	screw pile
D.	disc pile
Answer» D. disc pile

Discussion

129.	The stepped structure provided for lateral support of a structure, is
A.	retaining wall
B.	breast wall
C.	buttress
D.	parapet wall.
Answer» D. parapet wall.

Discussion

130.	The construction joints in buildings are provided after
A.	10 m
B.	15 m
C.	20 m
D.	40 m
Answer» E.

Discussion

131.	The depth of excavation of foundations, is generally measured with a
A.	ranging rod
B.	steel tape
C.	levelling staff
D.	bonning rod.
Answer» E.

Discussion

132.	Expansion joints in masonry walls are provided if length exceeds
A.	10 m
B.	20 m
C.	30 m
D.	40 m
Answer» E.

Discussion

133.	The pile which supports the load partly by friction and partly by resting on hard stratum, is called
A.	friction pile
B.	bearing pile
C.	friction bearing pile
D.	rough pile.
Answer» D. rough pile.

Discussion

134.	If the depth of an excavation is 20 metres, number of single stage well points to be installed at various levels, is
A.	5
B.	4
C.	3
D.	2
Answer» D. 2

Discussion

135.	The bearing capacity of piles is determined by
A.	dynamic formula
B.	static formula
C.	pile load tests
D.	all the above.
Answer» E.

Discussion

136.	The stone blocks approximately triangular in shape, used as steps, are known
A.	stone steps
B.	built up steps
C.	spandril steps
D.	none of these.
Answer» D. none of these.

Discussion

137.	The triangular portion between any two adjacent arches and the tangent to their crowns, is
A.	haunch
B.	spandril
C.	soffit
D.	rise.
Answer» C. soffit

Discussion

138.	A roof which slopes in four directions, is called
A.	shed roof
B.	gable end roof
C.	hipped roof
D.	gambrel roof.
Answer» D. gambrel roof.

Discussion

139.	Raft foundations are used for :
A.	providing increased area of foundation over poor bearing capacity of soil
B.	spanning over small soft or loose pockets
C.	counter acting the hydrostatic effect
D.	all the above.
Answer» E.

Discussion

140.	The least bearing capacity of soil is that of
A.	hard rock
B.	moist clay
C.	soft rock
D.	laminated
Answer» C. soft rock

Discussion

141.	The arrangement of supporting an existing structure by providing supports underneath, is known as
A.	shoring
B.	underpinning
C.	jacking
D.	piling
Answer» C. jacking

Discussion

142.	Which one of the following piles has a cast iron shoe even after removal of the hollow cylindrical steel casing
A.	simplex pile
B.	pedastal pile
C.	Franki pile
D.	both (a) and (d) of the above.
Answer» E.

Discussion

143.	The stone masonry of finely dressed stones laid in cement or lime, is
A.	random rubble masonry
B.	coursed rubble masonry
C.	dry rubble masonry
D.	ashlar masonry.
Answer» E.

Discussion

144.	Weep holes are provided in retaining and breast walls
A.	to drain off the water from the filling
B.	to ventilate the stone masonry
C.	to add architectural beauty
D.	to reduce the weight of the earth retained
Answer» B. to ventilate the stone masonry

Discussion

145.	According to National Building Code, the hydrants in water mains is provided at minimum interval of
A.	50 m
B.	60 m
C.	75 m
D.	90 m.
Answer» D. 90 m.

Discussion

146.	Cavity wall is generally provided for
A.	heat insulation
B.	sound insulation
C.	prevention of dampness
D.	all the above.
Answer» E.

Discussion

147.	The type of stone masonry in which stones of same height are laid in layers, is called
A.	random rubble masonry
B.	course rubble masonry
C.	uncoursed rubble masonry
D.	ashlar masonry.
Answer» C. uncoursed rubble masonry

Discussion

148.	Pile foundations are suitable for
A.	water logged soils
B.	soft rocks
C.	compact soils
D.	multistoreyed buildings
Answer» B. soft rocks

Discussion

149.	In the method of tube boring of soil investigation, the following is essential :
A.	a tube of about 2 metres length and 20 cm diameter with a cutting edge
B.	a flap valve at the bottom of tube is provided to extract the soil sample
C.	the tube is raised and lowered by 4 thick rope moving over a pulley suspended on a tripod stand
D.	all the above.
Answer» E.

Discussion

150.	The minimum distance between the centres of bulb of diameter du, of a multi under reamed piles, is
A.	du
B.	1.25 du
C.	1.5 du
D.	1.75 du
Answer» D. 1.75 du

Discussion

Explore topic-wise MCQs in Dc Machines.

The window which projects outside a room of a building for admitting more light and air, is known

Slate

The maximum permissible differential settlement, in case of foundations in clayey soil, is usually limited to

A floor constructed with the 4 to 6 mm marble chips, is known

The nominal thickness of one brick wall in mm, is

The angle between skew back of a flat arch and the horizontal, is kept approximately equal to

The arrangement made to support an unsafe structure temporarily, is known as

A concrete structure is set on fire and the temperature raises to 1000°C. The strength of concrete as compared to original strength reduces to

Bearing capacity of soils cannot be improved by

Suitable spacing of timber piles, is

The projections of head or sill of a door or window frame, are

Open test pit is only suitable upto a depth of

The compaction of concrete in the drilled pile hole is done by compressed air in the case of

The vertical members fixed between steps and hand rail, are known

For brick construction, the lime-sand mortar, is

The brick laid with its length parallel to the face of a wall, is a known as

The stone whose crushing strength is least, is

The pile which supports the load due to friction between pile face and surrounding soil, is generally known as

The width of the hollow space between two walls of a cavity wall should not exceed

The skirting/dado in a bath roof should be upto

In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to

Rotary drilling is the fastest method in case of

The platform at the end of a series of steps, is known as

While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful :

A wooden block fixed on back side of a door frame on its post, is known as

Exposed portions of vertical surface at right angles to the door or window frame, are known as

The nominal thickness of an expansion joint in brick walls, is kept more than

The steel pile which is generally sunk in soft clay or loose sand of low bearing capacity, is

The stepped structure provided for lateral support of a structure, is

The construction joints in buildings are provided after

The depth of excavation of foundations, is generally measured with a

Expansion joints in masonry walls are provided if length exceeds

The pile which supports the load partly by friction and partly by resting on hard stratum, is called

If the depth of an excavation is 20 metres, number of single stage well points to be installed at various levels, is

The bearing capacity of piles is determined by

The stone blocks approximately triangular in shape, used as steps, are known

The triangular portion between any two adjacent arches and the tangent to their crowns, is

A roof which slopes in four directions, is called

Raft foundations are used for :

The least bearing capacity of soil is that of

The arrangement of supporting an existing structure by providing supports underneath, is known as

Which one of the following piles has a cast iron shoe even after removal of the hollow cylindrical steel casing

The stone masonry of finely dressed stones laid in cement or lime, is

Weep holes are provided in retaining and breast walls

According to National Building Code, the hydrants in water mains is provided at minimum interval of

Cavity wall is generally provided for

The type of stone masonry in which stones of same height are laid in layers, is called

Pile foundations are suitable for

In the method of tube boring of soil investigation, the following is essential :

The minimum distance between the centres of bulb of diameter du, of a multi under reamed piles, is