WorksheetsD38 CHECK YOUR LEVEL
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
A steel rod of diameter 25 mm and length 2 m is subjected to a tensile force of 50 kN. Calculate the elongation in the rod. (E = 200 GPa)
a)
1.27 mm
b)
1.59 mm
c)
2.03 mm
d)
1.02mm
2.
Which IS code specifies the practice for bending and fixing bars in concrete reinforcement?
a)
IS 456
b)
IS 2502
c)
IS 800
d)
IS 1893
3.
According to IS 456:2000, what is the anchorage length for bars in compression?
a)
Same as beam depth
b)
Lap length
c)
Development length
d)
Bar length + 5d
4.
In RCC, the standard 'U' hook for plain bars should have a diameter equal to:
a)
2d
b)
3d
c)
4d
d)
5d
5.
Which IS code is referred for high strength deformed steel bars?
a)
IS 432
b)
IS 1786
c)
IS 2062
d)
IS 456 Part 1
6.
What is the typical reuse count for plywood formwork?
a)
5–10 times
b)
10–12 times
c)
20–25 times
d)
30–35 times
7.
What is the formwork material ideal for mass housing and has high reusability?
a)
Aluminium formwork
b)
Plastic formwork
c)
Plywood formwork
d)
Steel formwork
8.
How many days should props to slabs spanning over 4.5 m be removed after?
a)
7 days
b)
14 days
c)
21 days
d)
28 days
9.
Which reinforcement is used for seismic safety in low-rise buildings?
a)
Stirrups
b)
Wire mesh
c)
Flat bars
d)
None of these
10.
In reinforced masonry, the bars in vertical grooves are usually filled with:
a)
Sand
b)
Water
c)
Grout
d)
Bitumen
11.
Which bar diameter is commonly used as vertical reinforcement in masonry walls?
a)
4 mm
b)
6 mm
c)
8 mm
d)
12 mm
12.
Which slab system uses bricks laid flat in rows with gaps filled with concrete and steel?
a)
RBC slab
b)
Jack arch slab
c)
Filler slab
d)
Flat slab
13.
What is a common drawback of reinforced masonry construction?
a)
Economical construction
b)
Placement of bars is tricky
c)
High compressive strength
d)
Requires special bricks
14.
Assertion (A): Long columns fail mainly due to buckling. Reason (R): Long columns have a slenderness ratio greater than 12.
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
15.
Assertion (A): Spiral columns exhibit better earthquake resistance. Reason (R): Spiral reinforcement confines the concrete core and resists lateral expansion.
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
16.
Find the pressure in Pascal exerted by 1.5 m column of water (γ = 9810 N/m³).
a)
9810 Pa
b)
14715 Pa
c)
4905 Pa
d)
10200 Pa
17.
If atmospheric pressure is 760 mm Hg and gauge pressure is -100 mm Hg, find the absolute pressure.
a)
860 mm Hg
b)
660 mm Hg
c)
760 mm Hg
d)
640 mm Hg
18.
What is the aspect ratio (ly/lx) for a one-way slab?
a)
Less than 1
b)
Equal to 2
c)
Greater than or equal to 2
d)
Equal to 1
19.
Which type of weld is also called groove weld?
a)
Fillet weld
b)
Butt weld
c)
Plug weld
d)
Slot weld
20.
In steel structures, the permissible bending stress is:
a)
0.4fy
b)
0.6fy
c)
0.75fy
d)
0.66fy
21.
Fish plates in rail joints are made of:
a)
Mild steel
b)
Cast iron
c)
Carbon steel
d)
High speed steel
22.
Which zone accommodates 2–5% of land use in zoning?
a)
Recreational
b)
Industrial
c)
Commercial
d)
Residential
23.
A chair is used in railway tracks to support:
a)
Flat-footed rails
b)
Bull-headed rails
c)
Points and crossings
d)
Switches
24.
In town planning, the term 'green belt' is associated with:
a)
Recreational zones
b)
Industrial zones
c)
Urban sprawl prevention
d)
Highways
25.
Assertion (A): Steel has high strength to weight ratio. Reason (R): It can be recycled easily.
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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