Permanent dimension changes due to loading is termed as:
Anonymous Quiz
6%
Extent
25%
Strain
21%
Creep
49%
Deformation
β€7
Which admixture is used to improve workability?
Anonymous Quiz
50%
Plasticizers
10%
Aggregates
32%
Accelerators
7%
Reducers
π₯°5β€4
The accumulation of water on the outer surface of concrete is called:
Anonymous Quiz
28%
Curing
60%
Bleeding
9%
Absorption
3%
Hardening
π3
In the slope deflection equations, the
deformations are considered to be caused by
deformations are considered to be caused by
Anonymous Quiz
15%
a) Shear force
36%
(b) Bending moment
18%
(c) Axial force
32%
(d) Bending moment and shear force both
π4β€2
A fixed beam settles at one end by Ξ΄, if EI is the
flexural rigidity of the beam, the fixed end
moments at the ends be
flexural rigidity of the beam, the fixed end
moments at the ends be
Anonymous Quiz
25%
(a) EI Ξ΄/L2
31%
(b) 2EI Ξ΄/L2
28%
(c) 4EI Ξ΄/L2
16%
(d) 6EI Ξ΄/L2
π4β€2
The elastic curve of a beam means
Anonymous Quiz
25%
(a) BMD
8%
(b) SFD
28%
(c) Deflection curve
40%
(d) Stress-strain curve
π11β€1
The deflection of beams may be decreased by
Anonymous Quiz
70%
(a) Increasing the depth of beam
13%
(b) Increase the span
10%
(c) Decreasing the depth of beam
7%
(d) Increasing the width of beam
β€6π3
Conjugate beam of an indeterminate structure
will be
will be
Anonymous Quiz
25%
(a) Unstable
43%
(b) Indeterminate
26%
(c) Stable
5%
(d) Can't say
π6β€5π1
βThe deflection of a point in the real beam is
numerically equal to the bending moment at
the corresponding point in the conjugate beamβ. This theorem is used for analysis of beams in which of the following methods?
numerically equal to the bending moment at
the corresponding point in the conjugate beamβ. This theorem is used for analysis of beams in which of the following methods?
Anonymous Quiz
13%
(a) Castigliano's method
32%
(b) Moment area method
51%
(c) Conjugate beam method
4%
(d) None of the above
π6β€2
The principle of virtual work is applied to elastic
system by considering virtual work done by
system by considering virtual work done by
Anonymous Quiz
19%
(a) Internal forces only
19%
(b) External forces only
58%
(c) Internal as well as external forces
4%
(d) None of the above
π1
Which of the following statements is not
applicable to Unit Load Method?
applicable to Unit Load Method?
Anonymous Quiz
24%
(a) External and internal forces are in equilibrium
23%
(c) The material is strained well within elastic limit
31%
(d) The structure is redundant
21%
(b) The structure is determinate
β€5
In reinforced concrete construction, the
structures in which marked changes in plane
dimension take place abruptly shall be provided with :
structures in which marked changes in plane
dimension take place abruptly shall be provided with :
Anonymous Quiz
15%
(a) contraction joints
16%
(b) vertical cut
35%
(c) construction joints
34%
(d) expansion joints
β€6
In reinforced cement concrete construction; lap
splices are not recommended to be used for
rebars when the bar diameter is more than :
splices are not recommended to be used for
rebars when the bar diameter is more than :
Anonymous Quiz
43%
(a) 32 mm
13%
(b) 30 mm
29%
(c) 36 mm
15%
(d) 25 m
β€6π2
Effective moment of inertia for short term
deflection of a reinforced concrete section does
not depend onβ
deflection of a reinforced concrete section does
not depend onβ
Anonymous Quiz
20%
(a) the maximum moment under the service load
21%
(c) breadth of the compression face
35%
(d) ultimate shrinkage strain of concrete.
24%
(b) depth of the neutral axis
π5β€1
At the time of bending of a beam, a layer is
neither elongated nor contracted is.
neither elongated nor contracted is.
Anonymous Quiz
16%
(a) Axis of symmetry
62%
(b) Neutral axis
13%
(c) Axis of moment
9%
(d) Axis of load
π4β€2
Quality of reinforcing steel is evaluated by :
Anonymous Quiz
9%
(a) Compressive strength
60%
(b) Tensile strength, ductility
28%
(c) Yield strength, ductility
4%
(d) None of the above
β€3
The additional cover thickness to be provided
in reinforced concrete member that are total
immersed in sea water is :
in reinforced concrete member that are total
immersed in sea water is :
Anonymous Quiz
28%
(a) 25 mm
12%
(b) 30 mm
10%
(c) 35 mm
50%
(d) 40 mm
β€3π3
π INTERCON Construction Chemicals
β Concrete Admixtures
β Bonding Agents
β Waterproofings
β Wall Putty, Prime Coat
β Concrete Repair Mortar
β Floor hardener, Epoxy
β Grout, Self-level mortar
β Quartz paint, Contextra
β Tile Adhesive & Tile Joint Fillers
β Geotextiles and other construction chemicals and materials
βοΈ Tel: 0961955555
πΉ Address 1: Signal road, around
Dinberwa Hospital
πΉ Addres 2: Wellosefer, Infront of
Dani Plaza
β Concrete Admixtures
β Bonding Agents
β Waterproofings
β Wall Putty, Prime Coat
β Concrete Repair Mortar
β Floor hardener, Epoxy
β Grout, Self-level mortar
β Quartz paint, Contextra
β Tile Adhesive & Tile Joint Fillers
β Geotextiles and other construction chemicals and materials
βοΈ Tel: 0961955555
πΉ Address 1: Signal road, around
Dinberwa Hospital
πΉ Addres 2: Wellosefer, Infront of
Dani Plaza
ADVERTISMENT
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π ααα΅ any Size & thickness
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πHOLLOW CONCRETE BLOCK (HCB) β CLASS B LABORATORY TESTS
π«Class B Hollow Concrete Blocks are used for non-load bearing walls or medium-strength construction.
π§To certify quality, the following laboratory tests are performed.
β 1. Compressive Strength Test
βΊStandard: ASTM C140
Purpose: To measure block strength.
βοΈTypical Requirement for Class B HCB:
Minimum compressive strength: 3.5 MPa to 5.0 MPa (varies with project spec)
Test 3 blocks (average value)
β 2. Dimension & Shape Tolerance
Standard: ASTM C140 / ES Standard
Purpose: Check if the block meets size and shape requirements.
Requirements (typical):
Length, width, height within Β±3 mm tolerance
Faces should be flat and perpendicular
No large cracks or visible defects
β 3. Density Test (Dry Density)
Purpose: Confirm block classification (lightweight, medium, or normal).
Typical values:
1400 β 1700 kg/mΒ³ for Class B HCB
β 4. Water Absorption
Standard: ASTM C140
Requirement:
Water absorption β€ 12β15%
High absorption indicates weak block quality.
β 5. Block Weight Measurement
Purpose: Ensure consistency and structural performance.
Values depend on block size (e.g., 150 mm, 200 mm thickness).
β Optional Tests (if required)
Ultrasound pulse velocity test β for uniformity
Efflorescence test β check salt content
Moisture content
π Summary Table for Easy Use
Test Purpose Typical Requirement (Class B)
Compressive Strength Strength β₯ 3.5 β 5.0 MPa
Dimensions Size accuracy Β± 3 mm tolerance
Density Quality classification 1400β1700 kg/mΒ³
Water Absorption Durability β€ 12β15%
Weight Consistency As per design block type
@etconp
π«Class B Hollow Concrete Blocks are used for non-load bearing walls or medium-strength construction.
π§To certify quality, the following laboratory tests are performed.
β 1. Compressive Strength Test
βΊStandard: ASTM C140
Purpose: To measure block strength.
βοΈTypical Requirement for Class B HCB:
Minimum compressive strength: 3.5 MPa to 5.0 MPa (varies with project spec)
Test 3 blocks (average value)
β 2. Dimension & Shape Tolerance
Standard: ASTM C140 / ES Standard
Purpose: Check if the block meets size and shape requirements.
Requirements (typical):
Length, width, height within Β±3 mm tolerance
Faces should be flat and perpendicular
No large cracks or visible defects
β 3. Density Test (Dry Density)
Purpose: Confirm block classification (lightweight, medium, or normal).
Typical values:
1400 β 1700 kg/mΒ³ for Class B HCB
β 4. Water Absorption
Standard: ASTM C140
Requirement:
Water absorption β€ 12β15%
High absorption indicates weak block quality.
β 5. Block Weight Measurement
Purpose: Ensure consistency and structural performance.
Values depend on block size (e.g., 150 mm, 200 mm thickness).
β Optional Tests (if required)
Ultrasound pulse velocity test β for uniformity
Efflorescence test β check salt content
Moisture content
π Summary Table for Easy Use
Test Purpose Typical Requirement (Class B)
Compressive Strength Strength β₯ 3.5 β 5.0 MPa
Dimensions Size accuracy Β± 3 mm tolerance
Density Quality classification 1400β1700 kg/mΒ³
Water Absorption Durability β€ 12β15%
Weight Consistency As per design block type
@etconp
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