The angle between skew back of a flat arch and the horizontal, is kept approximately equal to
0°
30°
60°
90°
Correct Answer :
C. 60°
Related Questions
Which of the following metal sheets is most effective in preventing dampness?
Copper sheets
Lead sheets
Aluminium sheets
All the above
The size of a floor tile commonly used, is
15 cm × 15 cm × 1.8 cm
20 cm × 20 cm × 2 cm
22.5 × 22.5 cm × 2.2 cm
All the above
Pick up the correct statement from the following:
Inclined borings are made for taking samples under existing structures
Inclined borings are occasionally used instead of vertical holes
The spacing of inclined borings is kept such that one bore hole is vertically above the bottom of an adjacent bore hole
All the above
The bearing capacity of a water logged soil can be improved by
Compacting the soil
Draining the soil
Increasing the depth of foundation
Grouting
For brick construction, the lime-sand mortar, is
1 : 1
1 : 2
1 : 3
1 : 4
The sound which continues even after its source is cut off, is called
Reverberation
Echo
Intensity of sound
Interference
The portion of a brick cut across the width, is called
Closer
Half brick
Bed
Bat
In grillage foundations a minimum 15 cm cover is provided on
Upper flange of top tier
Lower beam of lower tier
Ends of external beams
None to these
The local swelling of a finished plaster, is termed
Cracking
Dubbing
Blistering
Hacking
In which of the following pairs both trees yield soft wood?
Deodar and Shishum
Chir and sal
Sal and teak
Chir and deodar
To ensure that supporting area of an offset footing of a boundary wall is fully compressive, the C.G. of load must act
At the centre of the base
Within the middle third of the base
Within the middle fifth of the base
Neither (a), (b) nor (c)
Dado is usually provided in
Dining halls
Bath rooms
Living rooms
Verandah
The projections of head or sill of a door or window frame are
Transoms
Horns
Stops
Chocks
The stone whose crushing strength is maximum, is
Granite
Chalk
Slate
Sand stone
The sill of a common wooden partition is
Vertical wooden member on either end
Lower horizontal wooden member
Upper horizontal wooden member
Intermediate horizontal wooden member
Nogging of a common wooden partition is
Upper horizontal wooden member
Lower horizontal wooden member
Intermediate horizontal wooden member
Vertical wooden member
The maximum bearing capacity of soil is that of
Black cotton soil
Loose fine sandy soil
Dry coarse sandy soil
Hard rocks
For different layers of cement concrete floor. Pick up the incorrect statement from the following:
The lowest layer consists of consolidated ground
A 10 cm thick clean sand is laid on consolidated ground
A 10 cm lime concrete (1 : 4 : 8) is laid on clean sand
A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer
Sum of tread and rise must lie between
300 to 350 mm
400 to 450 mm
500 to 550 mm
600 to 650 mm
The function of cleats in a roof truss is
To support the common rafter
To support purlins
To prevent the purlins from tilting
All of the above
The window which is provided in flat roof of a room, is known
Dormer window
Lantern window
Louvered window
Sky window
The inclined surface of an abutment to receive the arch, is known as
Skew back
Soffit
Spandril
Haunch
Slate
Is a metamorphic rock
Splits into thin sheets along its bedding planes
Has a smooth surface and contains alumina and silica
Possesses good water absorption capacity
A covering of concrete placed on the exposed top of an external wall, is known as
Cornice
Coping
Frieze
Lintel
Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below:
Both A and R is true and R is the correct explanation of A
Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
The Auger boring method is not suitable for
Very hard soil
Cemented soil
Vary soft soil
All the above
The steel pile which is generally sunk in soft clay or loose sand of low bearing capacity, is
H-pile
Pipe pile
Screw pile
Disc pile
The maximum total settlement for isolated foundations on clayey soils should be limited to
25 mm
40 mm
65 mm
100 mm
The depth of concrete bed of the foundation depends upon
The projection of the concrete block beyond the footing over it
The upward soil pressure
The mix of the concrete
All the above
Depth or height of the arch is the
Perpendicular distance between intrados and extrados
Vertical distance between springing line and intrados
Perpendicular distance between springing line and extrados
None of the above