Font size
S
M
L
XL
WorksheetsD68 MASTER THE DAY
Total questions: 110
Worksheet time: 2hrs 50mins
Name
Class
Date
1.
Which property of steel ensures good bond with concrete?
a)
High thermal conductivity
b)
Similar coefficient of thermal expansion as concrete
c)
High density
d)
Low modulus of elasticity
2.
Clear cover at the end of bars should be at least:
a)
50 mm
b)
15 mm
c)
40 mm
d)
Twice the diameter of bar or 25 mm, whichever is greater
3.
The unit weight of steel is taken as:
a)
78.5 kN/m³
b)
24.4 kN/m³
c)
100 kN/m³
d)
50 kN/m³
4.
Purpose of steel in RCC is to resist:
a)
Tensile stresses
b)
Shear stresses only
c)
Compressive stresses
d)
All stresses equally
5.
Which type of bar shape is represented by 'U-bar'?
a)
A bar bent into a U shape for anchorage
b)
A straight bar
c)
A bar bent into an L shape
d)
Circular ring
6.
The standard 135° hook requires an extension of:
a)
12d
b)
8d
c)
10d
d)
9d
7.
The excess length for cranked bars is provided to:
a)
Maintain slope at supports
b)
Reduce concrete usage
c)
Increase bond strength
d)
Prevent cracking at center
8.
BBS preparation helps in:
a)
Reducing curing period
b)
Replacing reinforcement
c)
Reducing wastage of steel
d)
Increasing concrete grade
9.
Which IS code is for RCC design and construction?
a)
IS 875
b)
IS 10262
c)
IS 456
d)
IS 800
10.
Which factor helps prevent theft of steel at site?
a)
Reducing bar diameter
b)
Increasing concrete cover
c)
Painting bars
d)
Accurate BBS and stock control
11.
Cutting and bending steel before formwork saves:
a)
Formwork height
b)
Concrete strength
c)
Cover thickness
d)
Project time
12.
Which is NOT an advantage of mechanized steel bending?
a)
Increased labour time
b)
Better accuracy
c)
Reduced wastage
d)
Improved reliability
13.
The formula for weight of a bar is:
a)
Length × Density × Volume
b)
Length ÷ Diameter
c)
Length × Cross-section area
d)
Length × Unit weight
14.
If diameter of bar is 20 mm, one hook length is:
a)
160 mm
b)
150 mm
c)
180 mm
d)
200 mm
15.
Effective depth is measured from:
a)
Bottom fiber to centroid of tensile reinforcement
b)
Top compression fiber to centroid of tensile reinforcement
c)
Center of bar to center of bar
d)
Top to bottom of slab
16.
If span is 4 m, clear cover 25 mm, bar dia 12 mm, straight bar length with hooks is:
a)
4.17 m
b)
3 m
c)
5.98 m
d)
2.8 m
17.
Which of these helps in better quality control at site?
a)
Detailed BBS
b)
Thicker covers
c)
More water
d)
Higher cement grade
18.
BBS includes which of the following details?
a)
Curing time
b)
Concrete mix ratio
c)
Bar mark, diameter, shape code, cut length
d)
Water-cement ratio
19.
Fe 500 steel is recommended because it:
a)
Has higher density
b)
Is corrosion proof
c)
Is cheaper
d)
Reduces steel quantity by ~10%
20.
If effective depth d = 200 mm, calculate excess length on one side of a cranked bar
a)
80 mm
b)
86 mm
c)
84 mm
d)
82 mm
21.
A bar of length 5 m and dia 16 mm weighs how much? (Unit wt = 1.58 kg/m)
a)
7.9 kg
b)
8.0 kg
c)
7.8 kg
d)
8.1 kg
22.
The clear cover for beams as per IS 456 is:
a)
40 mm
b)
25 mm or bar dia, whichever is more
c)
15 mm
d)
50 mm
23.
Which element generally requires maximum clear cover?
a)
Lintels
b)
Beams
c)
Slabs
d)
Foundation slabs and beams
24.
Purpose of hooks in reinforcement bars is to:
a)
Reduce bending moment
b)
Increase steel weight
c)
Reduce cover
d)
Provide proper anchorage
25.
Standard hook length is given by:
a)
8 × dia of bar
b)
12 × dia of bar
c)
10 × dia of bar
d)
9 × dia of bar
26.
BBS helps in:
a)
Avoiding formwork
b)
Reducing concrete quantity
c)
Ordering steel accurately
d)
Increasing curing time
27.
Fe 500 steel is stronger than Fe 415 by approximately:
a)
25%
b)
20%
c)
10%
d)
15%
28.
Which shape code is used for straight bars?
a)
Code 01
b)
Code 02
c)
Code 90
d)
Code 00
29.
The formula for bar weight per metre is:
a)
d²/162
b)
d²/140
c)
d²/172
d)
d²/150
30.
Which code gives standard bend deductions?
a)
IS 800
b)
IS 456
c)
IS 2502
d)
IS 10262
31.
Distribution bars are provided to resist:
a)
Dead load
b)
Shear force
c)
Bending moments
d)
Temperature and shrinkage stresses
32.
Which hook is standard for stirrups?
a)
135° hook
b)
U hook
c)
L hook
d)
90° hook
33.
Mechanized bending reduces:
a)
Reliability
b)
Accuracy
c)
Labour time
d)
Steel strength
34.
In BBS, the 'bar mark' refers to:
a)
Identifier for each bar type
b)
Bend radius
c)
Steel grade
d)
Lap length
35.
Cut and bend steel can be prepared before:
a)
Formwork placement
b)
Shuttering removal
c)
Concrete mixing
d)
Curing
36.
The minimum steel percentage in columns is:
a)
2%
b)
0.8%
c)
1%
d)
0.5%
37.
Effective span of a simply supported beam is lesser of clear span + effective depth or:
a)
Center-to-center distance of supports
b)
Clear span only
c)
Clear cover + span
d)
Twice clear cover
38.
The main reinforcement in a slab is placed on which side?
a)
Tension side
b)
Both equally
c)
Neutral axis
d)
Compression side
39.
Which IS code specifies concrete mix design?
a)
IS 10262
b)
IS 456
c)
IS 800
d)
IS 1786
40.
The density of plain cement concrete is approximately:
a)
2440 kg/m³
b)
2000 kg/m³
c)
3000 kg/m³
d)
1500 kg/m³
41.
Which type of reinforcement bar is best for earthquake resistance?
a)
Cold drawn wires
b)
HYSD bars
c)
Twisted bars
d)
Mild steel bars
42.
Purpose of lap splices in reinforcement is to:
a)
Reduce steel length
b)
Change bar shape
c)
Increase cover
d)
Transfer stress between bars
43.
Which factor does NOT affect bond strength between steel and concrete?
a)
Steel color
b)
Concrete grade
c)
Concrete cover thickness
d)
Bar surface deformation
44.
The percentage of steel in RCC columns varies between:
a)
0.5% to 2%
b)
1% to 5%
c)
2% to 8%
d)
0.2% to 1%
45.
Which device is used to measure bar diameter on site?
a)
Measuring tape
b)
Plumb bob
c)
Vernier caliper
d)
Spirit level
46.
When bending bars, which property of steel is most important?
a)
Elasticity
b)
Brittleness
c)
Hardness
d)
Ductility
47.
The effective length of a bar excludes:
a)
Hooks
b)
Bends
c)
Anchorage length
d)
Covers at both ends
48.
What is the purpose of stirrups in beams?
a)
Provide finish
b)
Reduce span
c)
Resist shear forces
d)
Increase bending moment
49.
For mild exposure conditions, the minimum cement content in RCC is:
a)
300 kg/m³
b)
350 kg/m³
c)
320 kg/m³
d)
250 kg/m³
50.
Which bar type has ribs to improve bond with concrete?
a)
Square bar
b)
Round bar
c)
Deformed bar
d)
Plain bar
51.
A 135° hook requires an extension of:
a)
8d
b)
12d
c)
6d
d)
10d
52.
The nominal cover for footings is usually:
a)
15 mm
b)
40 mm
c)
50 mm
d)
25 mm
53.
The total length of bars in BBS is multiplied by unit weight to get:
a)
Bar diameter
b)
Total cost
c)
Bend length
d)
Total weight
54.
Which steel grade has the highest strength among the following?
a)
Fe 500
b)
Fe 550
c)
Fe 250
d)
Fe 415
55.
Why are bends provided in reinforcement?
a)
For decoration
b)
To increase bar weight
c)
For anchorage and development length
d)
To reduce steel cost
56.
Which code specifies detailing of reinforcement in concrete structures?
a)
IS 10262
b)
IS 1343
c)
IS 1893
d)
SP 34
57.
The effective depth of a beam is measured up to:
a)
Centroid of tensile reinforcement
b)
Top fiber
c)
Neutral axis
d)
Bottom cover
58.
If the bar diameter is 20 mm, calculate its weight per metre .
a)
5 kg/m
b)
2.47 kg/m
c)
4.2 kg/m
d)
3.8kg/m
59.
A 10 m long bar of dia 12 mm weighs how much? (wt/m = 0.89 kg)
a)
8.8 kg
b)
8.9 kg
c)
9.0 kg
d)
9.2 kg
60.
Which element requires the smallest nominal cover?
a)
Slabs
b)
Footings
c)
Columns
d)
Beams
61.
The clear cover for columns as per IS 456 is:
a)
20 mm
b)
40 mm or bar dia
c)
50 mm
d)
25 mm
62.
Purpose of crank in slab bars is to:
a)
Reduce effective span and improve support anchorage
b)
Increase bar diameter
c)
Improve concrete workability
d)
Reduce steel weight
63.
Which bar type is plain and smooth?
a)
Mild steel plain bars
b)
HYSD bars
c)
Deformed bars
d)
TMT bars
64.
BBS helps in which of these project aspects?
a)
Concrete curing
b)
Formwork removal
c)
Stock control
d)
Increasing cover
65.
Which hook type is generally used in stirrups?
a)
135° hook
b)
90° hook
c)
U hook
d)
L hook
66.
In Fe 500, the number indicates:
a)
Yield strength in MPa
b)
Ultimate tensile strength
c)
Percentage elongation
d)
Elastic modulus
67.
If a slab is 4 m span, cover = 20 mm, dia = 12 mm, straight bar length with hooks is:
a)
2.2 m
b)
4.176 m
c)
5.2 m
d)
3 m
68.
Which code deals with detailing of reinforcement?
a)
IS 456
b)
IS 10262
c)
SP 34
d)
IS 2502
69.
The minimum steel % in slabs for HYSD bars is:
a)
0.15%
b)
0.12%
c)
0.2%
d)
0.25%
70.
Which property of steel is most important for reinforcement bending?
a)
Ductility
b)
Hardness
c)
Density
d)
Brittleness
71.
Which steel grade is the strongest among these?
a)
Fe 600
b)
Fe 415
c)
Fe 500
d)
Fe 250
72.
Hooks are provided in reinforcement to:
a)
Increase span
b)
Increase anchorage
c)
Increase cover
d)
Reduce bending
73.
Which is NOT a benefit of cut-and-bend steel?
a)
Reduce labour time
b)
Increase wastage
c)
Improve accuracy
d)
Reduce project time
74.
The formula to calculate weight of steel in a bar is:
a)
Length × Volume
b)
Length × Unit weight
c)
Length × Area
d)
Length × Density
75.
The cover for footing reinforcement is:
a)
15 mm
b)
50 mm
c)
40 mm
d)
25 mm
76.
The shape code for a straight bar in BBS is:
a)
3
b)
00
c)
2
d)
1
77.
Minimum clear cover for retaining wall face exposed to earth as per IS 456 is:
a)
50 mm
b)
25 mm
c)
40 mm
d)
20 mm
78.
Purpose of crank bars in slab reinforcement is to:
a)
Avoid negative bending at supports
b)
Improve anchorage
c)
Reduce concrete use
d)
Save steel
79.
Standard hook length for 12 mm dia bar is:
a)
108 mm
b)
96 mm
c)
120 mm
d)
144 mm
80.
The shape code '00' in BBS refers to:
a)
Straight bar
b)
U bar
c)
L bar
d)
Stirrups
81.
The minimum steel % in slabs for mild steel bars is:
a)
0.15%
b)
0.12%
c)
0.2%
d)
0.25%
82.
Which reinforcement arrangement resists torsion best?
a)
Closed stirrups
b)
L bars
c)
Bent-up bars
d)
Circular rings
83.
Excess length for one side of cranked bar = 0.42d, where d is:
a)
Overall depth
b)
Effective depth
c)
Clear depth
d)
Nominal depth
84.
For a 135° stirrup hook, extension required is:
a)
8d
b)
9d
c)
10d
d)
12d
85.
Which factor is NOT considered in calculating bar length in BBS?
a)
Bend deduction
b)
Anchorage length
c)
Bar diameter
d)
Concrete grade
86.
Minimum number of bars in a rectangular column as per IS 456 is:
a)
4
b)
6
c)
8
d)
10
87.
Main bars in cantilever slabs are placed at:
a)
Bottom
b)
Top
c)
Mid-depth
d)
Neutral axis
88.
Lap length in tension is usually taken as:
a)
40 × dia
b)
50 × dia
c)
30 × dia
d)
25 × dia
89.
Distribution steel is placed:
a)
Perpendicular to main bars
b)
Parallel to main bars
c)
Randomly
d)
Along diagonal
90.
Minimum dia of bars for column lateral ties as per IS 456 is:
a)
6 mm
b)
8 mm
c)
10 mm
d)
12 mm
91.
Which hook type is preferred in seismic zones?
a)
135° hook
b)
90° hook
c)
U hook
d)
L hook
92.
The effective span of a simply supported slab is lesser of clear span + effective depth or:
a)
Center-to-center distance of supports
b)
Clear span
c)
Effective span + cover
d)
Clear span - cover
93.
Assertion (A): Fe 500 steel allows a reduction in steel quantity compared to Fe 415. Reason (R): Fe 500 has higher tensile strength.
a)
A is true, R is false
b)
A is true, R is true, and R is the correct explanation
c)
A is false, R is true
d)
A is true, R is true, but R is not the correct explanation
94.
The minimum diameter of bars used in stirrups for columns is:
a)
6 mm
b)
10 mm
c)
8 mm
d)
12 mm
95.
The percentage of steel in footings is generally:
a)
2%–5%
b)
0.2%–0.5%
c)
0.5%–0.8%
d)
1%–2%
96.
For a 135° stirrup hook, extension required is:
a)
10d
b)
12d
c)
8d
d)
9d
97.
BBS stands for:
a)
Bar Bending Schedule
b)
Building Bar Specification
c)
Beam Bending Strength
d)
Base Beam Standard
98.
The minimum cover for footings is:
a)
40 mm
b)
15 mm
c)
50 mm
d)
25 mm
99.
The excess length on one side of a cranked bar is:
a)
0.42d
b)
0.5d
c)
0.75d
d)
0.25d
100.
Which IS code specifies bending and fixing of bars?
a)
IS 10262
b)
IS 2502
c)
IS 456
d)
IS 800
101.
The unit weight of steel is approximately:
a)
7850 kg/m³
b)
2500 kg/m³
c)
2440 kg/m³
d)
10000 kg/m³
102.
Main bars in one-way slabs are placed:
a)
Along longer span
b)
Randomly
c)
Perpendicular to shorter span
d)
Along shorter span
103.
The clear cover for slabs is:
a)
12 mm
b)
25 mm
c)
15 mm or dia of bar
d)
20 mm
104.
In RCC, steel is provided to resist:
a)
Tensile stresses
b)
Shear stresses only
c)
Compressive stresses
d)
All stresses equally
105.
Which type of hook is standard for seismic detailing?
a)
90° hook
b)
180° hook
c)
135° hook
d)
U hook
106.
The formula for weight per metre of a steel bar is:
a)
d²/150
b)
d²/140
c)
d²/162
d)
d²/172
107.
In BBS, bar mark refers to:
a)
Bend angle
b)
Identifier for bar type
c)
Bar grade
d)
Lap length
108.
The minimum steel % in slabs with HYSD bars is:
a)
0.15%
b)
0.2%
c)
0.12%
d)
0.25%
109.
Which arrangement is best for resisting torsion?
a)
L bars
b)
Bent-up bars
c)
Circular bars
d)
Closed stirrups
110.
The code for detailing of reinforcement in concrete structures is:
a)
IS 1893
b)
IS 10262
c)
SP 34
d)
IS 456
Reset
