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WorksheetsD64 CHECK YOUR LEVEL
Total questions: 27
Worksheet time: 14mins
Name
Class
Date
1.
What is the main reason for providing steel reinforcement in RCC?
a)
To improve compressive strength
b)
To resist tensile forces
c)
To reduce weight
d)
To improve aesthetics
2.
Which IS code is used for steel reinforcement in RCC?
a)
IS 456
b)
IS 383
c)
IS 1786
d)
IS 269
3.
In RCC lintels, where should the main steel be placed?
a)
At the top
b)
At the bottom
c)
At the center
d)
Anywhere
4.
The minimum bearing for a lintel end is:
a)
50 mm
b)
75 mm
c)
100 mm
d)
150 mm
5.
What is the detention period of a septic tank for small installations?
a)
6-12 hours
b)
12-24 hours
c)
24-48 hours
d)
48-72 hours
6.
The vertical distance between dip and crown weir in a trap is called:
a)
Trap depth
b)
Water seal
c)
Freeboard
d)
Clear space
7.
Which tank has separate compartments for sedimentation and digestion?
a)
Septic tank
b)
Imhoff tank
c)
Aeration tank
d)
Sedimentation tank
8.
The solvent used in rapid curing cutback bitumen is:
a)
Diesel
b)
Kerosene
c)
Petrol
d)
Furnace oil
9.
Which test determines the temperature at which bitumen softens?
a)
Flash point test
b)
Softening point test
c)
Ductility test
d)
Viscosity test
10.
Minimum CBR value for subgrade in NH as per IRC is:
a)
2%
b)
4%
c)
6%
d)
8%
11.
As per IS 456-2000, the maximum compressive strain in concrete in bending is:
a)
0.002
b)
0.0025
c)
0.003
d)
0.0035
12.
Which type of weld is also called groove weld?
a)
Butt weld
b)
Fillet weld
c)
Slot weld
d)
Plug weld
13.
Clear cover for footing reinforcement in RCC should not be less than:
a)
25 mm
b)
40 mm
c)
50 mm
d)
75 mm
14.
Which aggregate size is commonly used for RCC works?
a)
10 mm
b)
20 mm
c)
30 mm
d)
40 mm
15.
The triangular load on a lintel is considered when wall height above lintel is:
a)
Equal to lintel span
b)
More than 1.25h
c)
Less than 1.25h
d)
Twice the lintel height
16.
The minimum width of a septic tank for domestic use is:
a)
50 cm
b)
75 cm
c)
100 cm
d)
150 cm
17.
Which IS code specifies the method of test for aggregates for concrete?
a)
IS 269
b)
IS 383
c)
IS 2386
d)
IS 456
18.
The maximum span for stone lintels without relieving arches is:
a)
1 m
b)
1.5 m
c)
2 m
d)
2.5 m
19.
In septic tank design, sludge accumulation rate per capita per year is taken as:
a)
10 L
b)
20 L
c)
30 L
d)
50 L
20.
Which bituminous product is most suitable for maintenance work in rainy season?
a)
Cutback bitumen
b)
Tar
c)
Bitumen emulsion
d)
Mastic asphalt
21.
The cleaning period for an Imhoff tank is generally:
a)
2 weeks
b)
1 to 1.5 months
c)
6 months
d)
1 year
22.
Which test on bitumen measures its resistance to flow at a specified temperature?
a)
Ductility test
b)
Penetration test
c)
Viscosity test
d)
Softening point test
23.
The IS code for OPC 33 grade cement is:
a)
IS 8112
b)
IS 269
c)
IS 1489
d)
IS 456
24.
Which type of joint has two plates placed end to end with a cover plate?
a)
Lap joint
b)
Butt joint
c)
Groove joint
d)
Fillet joint
25.
The freeboard provided in a septic tank is generally:
a)
100–200 mm
b)
200–300 mm
c)
300–450 mm
d)
450–600 mm
26.
The curing period for RCC using OPC without admixtures is at least:
a)
3 days
b)
5 days
c)
7 days
d)
14 days
27.
Assertion (A): In RCC, clear cover protects steel from corrosion.
Reason (R): Clear cover also provides adequate bond between steel and concrete.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is true but R is false
d)
A is false but R is true
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