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WorksheetsD65 MASTER THE DAY
Total questions: 110
Worksheet time: 2hrs 50mins
Name
Class
Date
1.
In machine mixing of concrete, which ingredient is generally fed first?
a)
Cement
b)
Sand
c)
Coarse aggregates
d)
Water
2.
Slump test is used to measure:
a)
Strength of concrete
b)
Workability of concrete
c)
Durability of concrete
d)
Curing rate
3.
Which slump type indicates segregation and excessive water content?
a)
True slump
b)
Shear slump
c)
Collapse slump
d)
Zero slump
4.
For parapet, slab, walls, and piers, the recommended slump is:
a)
20–40 mm
b)
40–50 mm
c)
80–150 mm
d)
90–100 mm
5.
Break lintels usually have a minimum bearing length of:
a)
100 mm
b)
150 mm
c)
200 mm
d)
250 mm
6.
Continuous lintels reduce mid-span moments but create:
a)
Shear stresses
b)
Negative moments at supports
c)
Bending cracks
d)
Torsional effects
7.
The projection thickness of chajjas at the tip is usually:
a)
25–40 mm
b)
50–75 mm
c)
80–100 mm
d)
100–120 mm
8.
Which column shape is most common in building construction?
a)
Circular
b)
Square/Rectangular
c)
L-shaped
d)
Hexagonal
9.
Intermediate columns have slenderness ratio between:
a)
8–32
b)
32–120
c)
120–150
d)
150–200
10.
Which reinforcement type in columns provides continuous confinement?
a)
Lateral ties
b)
Spiral reinforcement
c)
Cranked bars
d)
U-stirrups
11.
Minimum cover for columns of 20 cm diameter or under with ≤13 mm bars is:
a)
20 mm
b)
25 mm
c)
30 mm
d)
40 mm
12.
Wall footings resemble which structural element?
a)
Inverted T-beam
b)
Rectangular slab
c)
Circular slab
d)
Cantilever beam
13.
When loads or column spacing are unequal, combined footings are usually:
a)
Rectangular
b)
Circular
c)
Trapezoidal
d)
Square
14.
Mat foundation reinforced in both directions is sometimes called:
a)
Flat slab
b)
Waffle raft
c)
Strip raft
d)
Pile cap
15.
Pile caps distribute loads from columns to:
a)
Soil directly
b)
Piles
c)
Raft slab
d)
Footing beams
16.
IS code recommends minimum cover to main reinforcement in footings as:
a)
25 mm
b)
40 mm
c)
50 mm
d)
75 mm
17.
Minimum reinforcement percentage for deformed bars in footings is:
a)
0.08%
b)
0.10%
c)
0.12%
d)
0.15%
18.
Which load is carried by lintels above openings?
a)
Live load
b)
Triangular portion of masonry
c)
Wind load
d)
Seismic load
19.
Short columns are assumed to be under:
a)
Direct compression only
b)
Buckling stress only
c)
Torsion only
d)
Combined stress
20.
Footings must be designed so that settlement is:
a)
Maximum possible
b)
As uniform as possible
c)
Irregular
d)
Differential only
21.
Hand mixing of concrete is generally adopted for:
a)
Large scale projects
b)
Small construction works
c)
High strength concrete
d)
Precast factory units
22.
Mixing time for hand mixing of concrete is approximately:
a)
1 minute
b)
2 minutes
c)
3 minutes
d)
5 minutes
23.
In slump test, each layer of concrete is tamped:
a)
10 times
b)
15 times
c)
20 times
d)
25 times
24.
Which degree of workability is suitable for heavily reinforced sections?
a)
Very low
b)
Low
c)
Medium
d)
High
25.
What is the top diameter of the slump cone?
a)
10 cm
b)
15 cm
c)
20 cm
d)
25 cm
26.
Which lintel type behaves like a simply supported beam?
a)
Continuous lintel
b)
Break lintel
c)
Precast lintel
d)
Steel lintel
27.
Continuous lintels require reinforcement at:
a)
Only bottom
b)
Only top
c)
Bottom at spans and top at supports
d)
Sides only
28.
The projection of chajja is generally limited to:
a)
0.5 m
b)
0.6–0.9 m
c)
1.0 m
d)
1.2 m
29.
Columns transferring load to foundation are primarily under:
a)
Tension
b)
Compression
c)
Shear
d)
Bending
30.
Composite columns may be made of:
a)
Steel and concrete
b)
Brick and mortar
c)
Timber and steel
d)
Concrete and glass
31.
In lateral ties, the diameter should be at least:
a)
4 mm
b)
5 mm
c)
6 mm
d)
8 mm
32.
Minimum pitch for spiral reinforcement is:
a)
50 mm
b)
60 mm
c)
75 mm
d)
90 mm
33.
Wall footings are mainly used for:
a)
Columns
b)
Walls
c)
Slabs
d)
Beams
34.
Combined footings must be designed for:
a)
Only bending
b)
Bending and torsion
c)
Shear only
d)
Axial load only
35.
Mat foundation is often used when:
a)
Soil is strong
b)
Loads are light
c)
Piles are not feasible
d)
Water table is deep
36.
Pile foundations transfer load to:
a)
Soft soil
b)
Deep soil layers or rock
c)
Water table
d)
Raft slab
37.
Minimum thickness at the edge of footing on soil is:
a)
100 mm
b)
150 mm
c)
200 mm
d)
250 mm
38.
In footings, minimum bar diameter for main reinforcement is:
a)
8 mm
b)
10 mm
c)
12 mm
d)
16 mm
39.
Maximum cover for reinforcement in footing is:
a)
50 mm
b)
60 mm
c)
70 mm
d)
75 mm
40.
The reinforcement in isolated footing primarily acts like:
a)
One-way slab
b)
Two-way slab
c)
Beam
d)
Cantilever
41.
In hand mixing, cement and sand are first mixed in:
a)
Wet condition
b)
Dry condition
c)
Semi-wet condition
d)
With aggregates
42.
Machine mixers for large projects are generally:
a)
Tilting drum type
b)
Pan type
c)
Continuous mixers
d)
Vertical axis mixers
43.
In slump test, the cone height is:
a)
20 cm
b)
25 cm
c)
30 cm
d)
35 cm
44.
Slump values of 200–220 mm indicate:
a)
Dry mix
b)
Stiff mix
c)
Plastic mix
d)
Sloppy mix
45.
Minimum bearing length for lintel with span > 1 m is:
a)
150 mm
b)
200 mm
c)
250 mm
d)
300 mm
46.
The lintel must be designed for full masonry load when:
a)
Wall height above lintel < 1¼h
b)
Wall height above lintel > 1¼h
c)
No openings above lintel
d)
Lintel is reinforced
47.
L-shaped columns are commonly used in:
a)
Middle bays
b)
Corners
c)
Along walls
d)
Foundations
48.
Long columns are usually subjected to:
a)
Bucking stress only
b)
Direct compression only
c)
Combined stresses
d)
Shear only
49.
Minimum percentage of steel (mild steel) in slab-type sunshade is:
a)
0.10%
b)
0.12%
c)
0.15%
d)
0.20%
50.
Footing on piles should have minimum thickness of:
a)
150 mm
b)
200 mm
c)
250 mm
d)
300 mm
51.
Safe bearing capacity of soil must not be:
a)
Underestimated
b)
Overstated
c)
Exceeded
d)
Measured
52.
Minimum main reinforcement in footings with plain bars is:
a)
0.08%
b)
0.10%
c)
0.12%
d)
0.15%
53.
Combined footings connecting two isolated footings with a strap beam are called:
a)
Raft footings
b)
Cantilever footings
c)
Mat footings
d)
Pile caps
54.
Mat foundations are heavily reinforced in:
a)
One direction
b)
Two directions
c)
No reinforcement
d)
Diagonal direction
55.
Pile caps distribute column loads to:
a)
Soil directly
b)
Isolated footings
c)
Piles
d)
Beams
56.
Longitudinal reinforcement in columns should not exceed:
a)
4% of cross-sectional area
b)
6% of cross-sectional area
c)
8% of cross-sectional area
d)
10% of cross-sectional area
57.
During hand mixing, water is added:
a)
At the start
b)
After dry mixing
c)
With aggregates
d)
With cement
58.
Tilting drum type concrete mixers are suitable for:
a)
Very large projects
b)
Small construction works
c)
Factory pre-casting
d)
Continuous production
59.
In slump test, the tamping rod length is:
a)
30 cm
b)
50 cm
c)
60 cm
d)
75 cm
60.
Recommended slump for mass concrete is:
a)
20–40 mm
b)
25–50 mm
c)
40–50 mm
d)
80–150 mm
61.
Minimum bar diameter for vertical bars in columns is:
a)
8 mm
b)
10 mm
c)
12 mm
d)
16 mm
62.
For short columns, slenderness ratio is:
a)
< 8
b)
< 32
c)
32–120
d)
> 120
63.
In wall footing, the reinforcement is placed mainly:
a)
Vertically
b)
Horizontally
c)
Randomly
d)
Spirally
64.
Raft foundation is also known as:
a)
Mat foundation
b)
Pile cap
c)
Strip footing
d)
Beam foundation
65.
Pile foundation is adopted when:
a)
Soil is strong at surface
b)
Soil is weak near surface
c)
Construction is temporary
d)
No foundation is needed
66.
Minimum cover to longitudinal bars in columns as per IS 456 is:
a)
25 mm
b)
40 mm
c)
50 mm
d)
75 mm
67.
Assertion (A): Continuous lintels provide more stability to the wall.
Reason (R): They tie the wall together across openings.
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, R is false
d)
A is false, R is true
68.
Statement: The slump test can directly measure the strength of concrete.
a)
True
b)
False
c)
Partially true
d)
Only for high-strength concrete
69.
The load on lintels is calculated considering:
a)
Live load only
b)
Triangular masonry above opening
c)
Dead load only
d)
Wind load only
70.
In spiral reinforcement, bar diameter should be at least:
a)
4 mm
b)
5 mm
c)
6 mm
d)
8 mm
71.
Slump values for plastic consistency are in range:
a)
0–20 mm
b)
20–40 mm
c)
40–120 mm
d)
120–200 mm
72.
For RCC lintel casting, the minimum curing period is:
a)
3 days
b)
5 days
c)
7 days
d)
14 days
73.
Mat foundation with beams in both directions is called:
a)
Solid raft
b)
Waffle raft
c)
Grid slab
d)
Beam raft
74.
Which IS code gives guidelines for detailing lintels and sunshades?
a)
IS 2212
b)
IS 456
c)
SP 34
d)
Both IS 456 and SP 34
75.
Machine mixing time for concrete to achieve uniformity is typically:
a)
1 minute
b)
1.5 minutes
c)
2–3 minutes
d)
5 minutes
76.
In slump test, the bottom diameter of the cone is:
a)
10 cm
b)
15 cm
c)
20 cm
d)
25 cm
77.
For arch concrete work, the recommended slump is:
a)
20–40 mm
b)
40–50 mm
c)
80–150 mm
d)
90–100 mm
78.
In continuous lintels, negative moments occur at:
a)
Midspan
b)
Supports
c)
Corners
d)
Joints
79.
Short columns are designed primarily for:
a)
Buckling stress
b)
Direct compression
c)
Combined stress
d)
Torsion
80.
The minimum pitch for spiral reinforcement should be:
a)
60 mm
b)
65 mm
c)
70 mm
d)
75 mm
81.
Minimum steel area for longitudinal reinforcement in columns is:
a)
0.6% of gross area
b)
0.8% of gross area
c)
1.0% of gross area
d)
1.2% of gross area
82.
Mat foundations are preferred when:
a)
Column loads are light
b)
Soil has low bearing capacity
c)
Piles are used
d)
Settlement is desired
83.
In wall footings, width is generally:
a)
More than wall thickness
b)
Equal to wall thickness
c)
Less than wall thickness
d)
Same as column footing
84.
A column has diameter 300 mm and vertical bar dia 16 mm. Find maximum spacing of lateral ties.
a)
256 mm
b)
300 mm
c)
320 mm
d)
400 mm
85.
If slump cone height is 300 mm and measured slump is 240 mm, find slump value.
a)
50 mm
b)
60 mm
c)
70 mm
d)
80 mm
86.
Which IS code provides design guidelines for composite columns?
a)
IS 456
b)
IS 800
c)
IS 11384
d)
IS 2212
87.
Footings must be designed to avoid:
a)
Uniform settlement
b)
Exceeding SBC
c)
Load transfer
d)
Moment resistance
88.
Pile caps are reinforced in:
a)
One layer
b)
Two layers
c)
Multiple layers
d)
No reinforcement
89.
Minimum cover to main reinforcement in footings is:
a)
25 mm
b)
40 mm
c)
50 mm
d)
75 mm
90.
Which footing is provided for two columns with different loads and spacing?
a)
Rectangular footing
b)
Square footing
c)
Trapezoidal footing
d)
Circular footing
91.
Slump values of 25–50 mm indicate:
a)
Low workability
b)
Medium workability
c)
High workability
d)
Very high workability
92.
Hand mixing of concrete requires cement quantity to be increased by approximately:
a)
5%
b)
8%
c)
10%
d)
15%
93.
Continuous mixers are suitable for:
a)
Small works
b)
Medium works
c)
Very large projects
d)
Temporary works
94.
The height of slump cone is:
a)
20 cm
b)
25 cm
c)
30 cm
d)
35 cm
95.
For RCC work, the degree of workability is considered:
a)
Very low
b)
Low
c)
Medium to high
d)
Sloppy
96.
Break lintels generally have a minimum bearing length of:
a)
100 mm
b)
150 mm
c)
200 mm
d)
250 mm
97.
In continuous lintels, reinforcement is required at:
a)
Bottom only
b)
Top only
c)
Bottom at spans and top at supports
d)
Sides only
98.
L-shaped columns are typically used in:
a)
Middle of building
b)
Corners
c)
Roof slabs
d)
Footings
99.
Intermediate columns have slenderness ratio between:
a)
8–32
b)
32–120
c)
120–150
d)
150–200
100.
Spacing of lateral ties in columns is governed by all except:
a)
12 × dia of main bar
b)
16 × dia of main bar
c)
Least lateral dimension
d)
300 mm
101.
Minimum cover for longitudinal bars in columns is:
a)
25 mm
b)
40 mm
c)
50 mm
d)
75 mm
102.
Calculate the lap length for a 16 mm dia vertical column bar
a)
384 mm
b)
400 mm
c)
420 mm
d)
450 mm
103.
If slump cone height is 300 mm and measured height after subsidence is 210 mm, find slump value.
a)
80 mm
b)
85 mm
c)
90 mm
d)
100 mm
104.
Isolated footings primarily act as:
a)
One-way slab
b)
Two-way slab
c)
Beam
d)
Column
105.
Minimum thickness at edge of RCC footing on soil is:
a)
100 mm
b)
150 mm
c)
200 mm
d)
250 mm
106.
Pile caps are used to:
a)
Support only one pile
b)
Tie a group of piles together
c)
Act as isolated footing
d)
Increase SBC of soil
107.
Mat foundation with thickened slab under columns is called:
a)
Solid mat
b)
Drop panel mat
c)
Waffle raft
d)
Beam mat
108.
Minimum reinforcement for deformed bars in footings is:
a)
0.08%
b)
0.10%
c)
0.12%
d)
0.15%
109.
Trapezoidal combined footings are used when:
a)
Column loads are equal
b)
Column spacing is equal
c)
Loads or spacing are unequal
d)
Footings are square
110.
Very low workability concrete has a slump range of:
a)
0–25 mm
b)
25–50 mm
c)
50–100 mm
d)
100–175 mm
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