CCIL EXAM QUESTIONS WITH COMPLETE
SOLUTIONS
A sample contains aggregate larger than that appropriate for the
size of the moulds or equipment. Correct Answers It must be
wet-sieved prior to testing
Air Content Correct Answers The volume of air voids of
plastic concrete, exclusive of pore space in aggregate particles,
determined through observations of the change of air volume in
concrete with a change in pressure.
Air Guage Dial Correct Answers Permits direct reading to a
minimum of 0.2% for air volumes in the usual range of 0-8%.
Air Meter Readings Correct Answers Are to the nearest 0.1%.
Air Meter Rodding Correct Answers 15L - 25 strokes. Greater
than 15L - 50 strokes.
Average specimen density Correct Answers Should be 98-
102% of the mix design plastic concrete density specified by the
supplier.
Bearing Face Diameter 13mm greater than specimen? Correct
Answers Concentric circles no more than 0.8mm deep and not
more than 1.2mm wide should be inscribed to properly centre
cylinder.
Bearing Surface Minimum Dimension Correct Answers At
least 3% greater than the specimen
, Bearing Surfaces Should Not Depart from the plane... Correct
Answers More than 0.025mm. New blocks are manufactured at
half that.
Bottom Bearing Block Correct Answers At least 25mm thick
when new, 22.5mm thick after resurfacing. Must be 3% greater
than specimen,
Calibration Cylinder Correct Answers Volume in the range of
1-6% of the volume of the base container.
Capping Plate Temperature Correct Answers 20 to 30 degrees
C.
Capping Recess/Mould Correct Answers Depth 5-12mm and
shall be 10-25mm larger than diameter of specimen. Metal plate
thickness of recessed area should not be less than 12mm.
Cardboard moulds cannot be used for what strength? Correct
Answers Greater than 35MPa
Checking planeness of cylinders Correct Answers Every 10th
cylinder, but no less than 3 in one day.
Consolidating Test Specimens Correct Answers Rodding used
with slump greater than 40, vibration used with slump equal or
less than 40.
SOLUTIONS
A sample contains aggregate larger than that appropriate for the
size of the moulds or equipment. Correct Answers It must be
wet-sieved prior to testing
Air Content Correct Answers The volume of air voids of
plastic concrete, exclusive of pore space in aggregate particles,
determined through observations of the change of air volume in
concrete with a change in pressure.
Air Guage Dial Correct Answers Permits direct reading to a
minimum of 0.2% for air volumes in the usual range of 0-8%.
Air Meter Readings Correct Answers Are to the nearest 0.1%.
Air Meter Rodding Correct Answers 15L - 25 strokes. Greater
than 15L - 50 strokes.
Average specimen density Correct Answers Should be 98-
102% of the mix design plastic concrete density specified by the
supplier.
Bearing Face Diameter 13mm greater than specimen? Correct
Answers Concentric circles no more than 0.8mm deep and not
more than 1.2mm wide should be inscribed to properly centre
cylinder.
Bearing Surface Minimum Dimension Correct Answers At
least 3% greater than the specimen
, Bearing Surfaces Should Not Depart from the plane... Correct
Answers More than 0.025mm. New blocks are manufactured at
half that.
Bottom Bearing Block Correct Answers At least 25mm thick
when new, 22.5mm thick after resurfacing. Must be 3% greater
than specimen,
Calibration Cylinder Correct Answers Volume in the range of
1-6% of the volume of the base container.
Capping Plate Temperature Correct Answers 20 to 30 degrees
C.
Capping Recess/Mould Correct Answers Depth 5-12mm and
shall be 10-25mm larger than diameter of specimen. Metal plate
thickness of recessed area should not be less than 12mm.
Cardboard moulds cannot be used for what strength? Correct
Answers Greater than 35MPa
Checking planeness of cylinders Correct Answers Every 10th
cylinder, but no less than 3 in one day.
Consolidating Test Specimens Correct Answers Rodding used
with slump greater than 40, vibration used with slump equal or
less than 40.
