The rock formed from the solidification of molten matter (magma) is called:
Sedimentary rock
Metamorphic rock
Igneous rock
None of the above
Correct Answer :
C. Igneous rock
Related Questions
Pick up the incorrect statement from the following:
The retaining wall should be structurally capable to resist the applied earth pressure
The section of the retaining wall should be so proportioned that it may not overturn by the lateral pressure
The retaining wall should be safe against sliding
To drain off water from the earth retained, weep holes are provided near the top of the retaining wall
The inclined support at the ends of treads and rises of a stair, is known as
Baluster
Header
String
Beam
Pick up the correct specification of one-room quarters generally adopted from the following:
Six quarters in a row
The size of room is either 3.5 m × 3 m or 4.2 m × 2.5 m
The front verandah is kept 2 m wide
All the above
The maximum total settlement for raft foundation on clayey soils should be limited to
25 mm
25 to 40 mm
40 to 65 mm
65 to 100 mm
For providing a raft foundation, the following activities are involved
1. Ramming the foundation bed
2. Excavation of the soil upto required depth
3. Laying the reinforcement over the foundation bed
4. Curing the cement concrete placed over reinforcement
5. Pouring the cement concrete over the reinforcement The correct sequence is
1, 2, 3, 4, 5
5, 4, 3, 2, 1
2, 1, 3, 5, 4
3, 2, 5, 1, 4
According to Rankine's formula, minimum depth of foundations, is
(P/w) × [(1 + sin φ)/(1 - sin φ)]²
(P/w) × [(1 - sin φ)/(1 + sin φ)]²
(P/2w) × [(1 - sin φ)/(1 + sin φ)]²
(P/w) × [(1 + sin φ)/(1 - sin φ)]
The minimum strength of the mortar used in load bearing brick masonry, is
50 N/cm2
100 N/cm2
150 N/cm2
200 N/cm2
The foundation in which a cantilever beam is provided to join two footings, is known as
Strip footing
Strap footing
Combined footing
Raft footing
During percussion drilling
Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole
Caving or mixing of strata are caused in soft soils or cohesionless soils
The soil to a considerable depth below the bottom of the hole gets disturbed
All the above
The form work from the slabs excluding props, can be removed only after
1 day
4 days
7 days
14 days
For a wall carrying heavy load on low bearing capacity soil,
Lean concrete bed is provided
Thick concrete bed is provided
Reinforced concrete bed is provided
Both (a) and (c) of the above
Minimum width of landing should be
Equal to width of stairs
Half the width of stairs
Twice the width of stairs
One fourth the width of stairs
The lintels are preferred to arches because
Arches require more headroom to span the openings like doors, windows etc.
Arches require strong abutments to withstand arch thrust
Arches are difficult in construction
All of the above
Pick up the correct statement from the following:
The roof slabs of multi-storeyed buildings are constructed monolithically to carry the various floor loads
The beams of multi-storeyed buildings rest on girders and are the main load transferring members to the columns
The slab is spanned across the secondary beams provided between the main beams
All of these
Pick up the correct statement from the following:
English bond is used for brick masonry to support heavy loads
Double-Flemish bond is suitable for brick masonry to give uniform face appearance
The stretcher bond is used for the construction of half brick masonry brick
All the above
Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to
1/2
1
2
1/4
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
All the above
Crown is located at
Highest point on the extrados of the arch
Highest point on the intrados of the arch
Skew-back of the arch
None of these
The art of bringing the floor to a true level surface by means of screeds, is called
Topping
Bedding
Screeding
None of these
The minimum distance between the centres of bulb of diameter du, of a multi under reamed piles, is
du
1.25 du
1.5 du
1.75 du
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
All the above
An arch constructed with finely dressed stones, is known
Ashlar arch
Rubble arch
Gauged arch
Axed arch
The stone whose crushing strength is maximum, is
Granite
Chalk
Slate
Sand stone
The members which support covering material of a sloping roof, are
Rafters
Purlins
Battens
Struts
To obtain good bonding in brick masonry
First class bricks are used
Vertical joints in alternate courses are kept in plumb line
Bats are used where necessary
All the above
The wedge shaped bricks forming an arch ring, are called
Soffits
Voussoirs
Haunches
Spandrils
You are asked to design and supervise a truss for a factory to have spans 6 m to 9 m. The type of the truss you will use, is
Mansard truss
Queen post truss
King post truss
Collar truss
Cast iron piles
Are suitable for works under sea water
Resist shocks or vibrations
Are suitable for use as batter piles
Are useful for heavy vertical loads
Ornamental moulded course placed on the top of a wall, is
Cornice
Coping
Frieze
Lintel
The columns of multi-storeyed buildings are designed to withstand the forces due to
Dead loads
Live loads
Wind loads
All of these