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CCIL EXAM STUDY GUIDE BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
Slump on Mixtures with aggregate larger than 40mm - correct
answer -Sample is sieved and slump test is conducted with
material that passed through a 40mm sieve. Not applicable to
non-plastic concrete.
Slump Cone Specs - correct answer -Minimum 1.5mm thickness,
Base 200 +/- 3mm diameter, Top 100 +/- 3mm Diameter, Height
300 +/- 3mm. Base and top parallel to each other and at right
angles to axis of cone.
Slump Board - correct answer -Minimum 19mm thickness.
Slump Measuring - correct answer -Tape minimum 300mm length
and reading in 1 mm gradations.
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Slump Test - correct answer -Done in 2 minutes or less. If 2
operators testing, 4 minutes or less.
When measuring slump read to the nearest how many mm? -
correct answer -5
Bearing Surface Minimum Dimension - correct answer -At least
3% greater than the specimen
Bearing Surfaces Should Not Depart from the plane... - correct
answer -More than 0.025mm. New blocks are manufactured at
half that.
Bottom Bearing Block - correct answer -At least 25mm thick when
new, 22.5mm thick after resurfacing. Must be 3% greater than
specimen,
Bearing Face Diameter 13mm greater than specimen? - correct
answer -Concentric circles no more than 0.8mm deep and not
more than 1.2mm wide should be inscribed to properly centre
cylinder.
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Upper Bearing Block - correct answer -The centre of the sphere
should coincide with the surface of the bearing face with a
tolerance of +/-5% of the radius of the sphere.
Stress Level Limit on Ball and Socket - correct answer -85MPa for
150mm diameter cylinders
How do you keep the curved surface of the socket lubricated? -
correct answer -Petroleum Based Oil
What happens if the radius of the sphere is less than the radius of
the cylinder? - correct answer -The thickness of the bearing face
should not be less than the difference between the radius of the
sphere and the radius of the diagram.
Movable Portion of Bearing Block - correct answer -Must be able
to rotate freely and tilt 4 degrees in any direction.
CCIL EXAM STUDY GUIDE BRAND
NEW OFFICIAL QUESTIONS WITH
ANSWERS.
Slump on Mixtures with aggregate larger than 40mm - correct
answer -Sample is sieved and slump test is conducted with
material that passed through a 40mm sieve. Not applicable to
non-plastic concrete.
Slump Cone Specs - correct answer -Minimum 1.5mm thickness,
Base 200 +/- 3mm diameter, Top 100 +/- 3mm Diameter, Height
300 +/- 3mm. Base and top parallel to each other and at right
angles to axis of cone.
Slump Board - correct answer -Minimum 19mm thickness.
Slump Measuring - correct answer -Tape minimum 300mm length
and reading in 1 mm gradations.
, Page | 2
Slump Test - correct answer -Done in 2 minutes or less. If 2
operators testing, 4 minutes or less.
When measuring slump read to the nearest how many mm? -
correct answer -5
Bearing Surface Minimum Dimension - correct answer -At least
3% greater than the specimen
Bearing Surfaces Should Not Depart from the plane... - correct
answer -More than 0.025mm. New blocks are manufactured at
half that.
Bottom Bearing Block - correct answer -At least 25mm thick when
new, 22.5mm thick after resurfacing. Must be 3% greater than
specimen,
Bearing Face Diameter 13mm greater than specimen? - correct
answer -Concentric circles no more than 0.8mm deep and not
more than 1.2mm wide should be inscribed to properly centre
cylinder.
, Page | 3
Upper Bearing Block - correct answer -The centre of the sphere
should coincide with the surface of the bearing face with a
tolerance of +/-5% of the radius of the sphere.
Stress Level Limit on Ball and Socket - correct answer -85MPa for
150mm diameter cylinders
How do you keep the curved surface of the socket lubricated? -
correct answer -Petroleum Based Oil
What happens if the radius of the sphere is less than the radius of
the cylinder? - correct answer -The thickness of the bearing face
should not be less than the difference between the radius of the
sphere and the radius of the diagram.
Movable Portion of Bearing Block - correct answer -Must be able
to rotate freely and tilt 4 degrees in any direction.
