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WorksheetsLAB TEST
Total questions: 20
Worksheet time: 10mins
Slump test is performed on ____
Mortar
Paste
Concrete
All
Vicat apparatus is used for ____
Fineness of cement
Setting time
Normal Consistency
Setting time and normal consistency
Le Chatelier flask is used for _____
Density of Hydraulic cement
Soundness of cement
Fineness of cement
Sand Equivalent test
The Unit Weight of Concrete is around ______
2350 g/cm3
2350 kg/m3
2.35 ton/cm3
1500 kg/m3
The Yield strength of 16 mm diameter reinforcing bar is _____ that of 32 mm diameter one of same Grade
Greater then
Lower then
similar to
Lower or Greater then
The Sand Equivalent Test value is based on ____x100
Clay reading / sand reading
Sand reading / clay reading
(Sand - Clay) / clay reading
Clay - sand / sand
Give an estimated slump value from the picture shown
24 cm
140 mm
20 mm
30 cm
The concrete compressive strength as per ASTM is generally made on cylindrical _____ specimen at _____
Cylindrical, 28 days
Cubical, 28 days
Cylindrical, 7 days
Cubic, 7 days
The equipment shown is used for determination of ____
Specific gravity and absorption of fine aggregates
Specific gravity and absorption of coarse aggregates
Specific gravity and absorption for both fine and coarse aggregates
sand equivalent value of fine aggregates
Which of the following equipment is not used for workability tests:
Slump cone
VB Equipment
Compacting factor Equipment
Air meter Equipment
The concrete temperature test at site is useful as ___
A Field Quality Control test
An acceptance criteria for the delivered concrete
An indicator of the concrete production consistency
All
Knowing that the crushing load obtained on cubical concrete specimen (10x10x10 cm) based on a compression test is 250 kN
25 MPa
250 MPa
25 kg/cm2
none
Noting that the SSD weight of an aggregate sample is 505g and the oven dry weight is 500g. What would be the absorption value?
10%
1%
5%
0.1 %
The % of fines in fine aggregates are determined by washing on sieve _____
No 200
No 100
No 4
No 50
The shown equipment is used to measure the ___
Compacting factor test
VB time
Viscosity of concrete
air content in concrete
The grading curve represents the ___ versus sieve opening
% cumulative passing
% passing
% cumulative retained
% retained
The acceptable sand equivalent value sand should ____
not be less than 75%
not be more than 75%
be equal to to 75 %
none
The hardened concrete tests include:
Flexure test
Compression test
Indirect tensile test
All
A steel reinforcing bar has elongated 2 cm following a tensile test. What is the ductility of this rebar?
10%
1%
20%
2%
The bulk specific gravity of the coarse aggregates depends on its ___
size distribution
shape
texture
none
