What is the nominal size
of brick?
Ans.
Nominal size of
bricks =20cmx10cmx10cm
Note:Includes Thickness
of mortar.
Q
What is the standard size of brick?
Ans.
Standard size of bricks =19cmx9cmx9cm.
Q
What is the average weight of brick?
Ans.
Average weight of bricks=3-3.5 kg.
Q
How many bricks are in 1 cum?
Ans.
No of bricks in 1 cum=475.
Q
Water absorption of bricks?
Ans.
What is the standard size of brick?
Ans.
Standard size of bricks =19cmx9cmx9cm.
Q
What is the average weight of brick?
Ans.
Average weight of bricks=3-3.5 kg.
Q
How many bricks are in 1 cum?
Ans.
No of bricks in 1 cum=475.
Q
Water absorption of bricks?
Ans.
- First Class ≤
20% of its dry weight.
- Second Class ≤ 22%
of its dry weight.
- Third Class ≤ 25%
of its dry weight.
Q
What is initial and final setting of cement?
Ans.
Initial Setting of Cement=30minutes
What is initial and final setting of cement?
Ans.
Initial Setting of Cement=30minutes
- Final Setting of Cement =600
minutes(10 hrs.)
Q
What is the name of apparatus used for determine setting of cement?
Ans.
Vicats Apparatus.
Q
What is the expiry date of cement?
Ans.
3 months from the date of manufacture.
Q
What do you mean by 1BHK?
What is the name of apparatus used for determine setting of cement?
Ans.
Vicats Apparatus.
Q
What is the expiry date of cement?
Ans.
3 months from the date of manufacture.
Q
What do you mean by 1BHK?
Ans.
1 BHK stands for 1
Bedroom,1 Hall and 1 Kitchen.
Q
What is the minimum area of steel used in column?
Ans.
Minimum area of steel used in column=0.8% of gross area.
Q
Maximum area of steel in column?
Ans.
Case Ist-When bars are not lapped
Maximum area=6% of gross area
Case 2nd-When bars are lapped
Maximum area=4% of gross area.
Q
How many minimum number of bars are used in square/rectangular column & circular column?
Ans.
What is the minimum area of steel used in column?
Ans.
Minimum area of steel used in column=0.8% of gross area.
Q
Maximum area of steel in column?
Ans.
Case Ist-When bars are not lapped
Maximum area=6% of gross area
Case 2nd-When bars are lapped
Maximum area=4% of gross area.
Q
How many minimum number of bars are used in square/rectangular column & circular column?
Ans.
- For square/Rectangular column
=4 no.
- For Circular Column=6 no.
Q
What is the maximum distance between the longitudinal reinforcement?
Ans.
The maximum distance between the longitudinal reinforcement is 300mm.
Q
How to determine the diameter of lateral ties?
Ans.
Diameter of ties=¼ x dia. of main bar
6mm
Note: we have to choose minimum value among the above values.
Q
How to determine the maximum value of pitch of transverse reinforcement?
Ans.
Pitch of ties=Least Lateral Dimension
16x dia.of minimum bar
300mm
Note: we have to choose minimum value among the above values.
Q
When side face reinforcement is provided in a beam?
Ans.
Side face reinforcement is provided along the two faces when the depth of the web in a beam exceeds 750mm.
Q
What is the difference between short and long columns?
Ans.
What is the maximum distance between the longitudinal reinforcement?
Ans.
The maximum distance between the longitudinal reinforcement is 300mm.
Q
How to determine the diameter of lateral ties?
Ans.
Diameter of ties=¼ x dia. of main bar
6mm
Note: we have to choose minimum value among the above values.
Q
How to determine the maximum value of pitch of transverse reinforcement?
Ans.
Pitch of ties=Least Lateral Dimension
16x dia.of minimum bar
300mm
Note: we have to choose minimum value among the above values.
Q
When side face reinforcement is provided in a beam?
Ans.
Side face reinforcement is provided along the two faces when the depth of the web in a beam exceeds 750mm.
Q
What is the difference between short and long columns?
Ans.
- Short Columns
Short columns
are those columns having slenderness ratio i.e ratio of effective length to its
least lateral dimensions less than or equal to 12.
- Long columns
Long columns are those
columns having slenderness
ratio i.e ratio
of effective length to its least lateral
dimensions
greater than or equal to 12.
- Note: Long columns fail due to
buckling while as short columns due to crushing .
Q
Compressive Strength of
bricks?
Ans.
Q
What are the names of
tests performed to determine soundness of cement?
Ans.
- Le Chateliers Method.
- Auto Clave.
Q
What is the minimum
grade of concrete used in RCC works?
Ans.
M20 (1:1.5:3)
Q
What are the dimensions
of Cube used to determine the compressive strength of concrete?
Ans.
The dimensions of Cube
used to determine the compressive strength of concrete are 150mmx150mmx150mm.
Q
The dimensions tolerance
of Cube used to determine the compressive strength of concrete are?
Ans.
(+-2mm.)
Q
In how many layers cube
is filled used in determining compressive strength of concrete?
Ans.
3 Layers.
Q
What is the maximum free
fall of concrete?
Ans.
The maximum free fall of
concrete is 1.5 metre.
Q
Mention the value of
Nominal covers provided to various structural members?
Ans.
Q
At what height lintel is
provided in case of brick masonary?
Ans.
Lintel is provided at
2.1 metre height in case of brick masonary.
Q
What is the minimum
thickness of Lintel?
Ans.
Minimum thickness of
Lintel is 150mm.
Q
What are the various
grades of concrete?
Ans.
The various grades of
concrete are:
Q
What is the PH value
used in concrete?
Ans.
The PH value of water
shall not be less than 6.
Q
What is the minimum
diameter of bars used in slab?
Ans.
The minimum diameter of
bars used in slab are 8mm.
Q
What is the minimum
diameter of bars used in column?
Ans.
The minimum diameter of
bars used in column 12mm.
Q
What is the Quantity of
Bricks required per Cft in brick masonary?
Ans.
The Quantity of Bricks
required per Cft in brick masonary is 13.5.
Q
What is the Maximum
spacing between chairs?
Ans.
The Maximum spacing
between chairs shall be 1metre.
Q
What is the minimum
thickness of slab?
Ans.
The minimum thickness of
slab Shall be 125mm.
Q
Least Count of various
Surveying Instruments
Ans.
Compass=30 minutes
Theodelite=20 Seconds
Auto Level=5mm
Dumpy Level=5mm
Q
What is the volume of
cement in terms of Cubic feet?
Ans.
The volume of one bag of
cement is 1.226 Cubic Feet.
Q
Number of cement bags in
1 cubic metre?
Ans.
Number of cement bags in
1 cubic metre is 28.8.
Q
What is the difference
between one way slab and two way slab?
Ans
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