CCIL Exam 2024 with Questions and 100%
Correct Answers
Temperature measuring - Answer Devices must be able to measure temperatures
between 0 and 50 degrees C, accurate to 0.5 degrees C.
Moisture Room - Answer Temperature must be read every 15 mins by a recorder- Must
be accurate to 1 degree C.
Verify temperature recorders - Answer Every 6 months or whenever there is a
question of accuracy
Reference Temperature Measuring Device - Answer Available for calibration of
other devices, MUST be accurate to +/- 0.2 degrees C. Must have certificate or
document available for view.
Specimens must be moulded when? - Answer 20 minutes after sample time,
including transport and remixing.
Specimen/Aggregate Size - Answer Diameter of a cylindrical specimen, or cross-
sectional dimension of a beam shall be at least 3 times the size of the coarse aggregate
used in the concrete.
Handpicking - Answer Can be used to remove over-sized aggregate before casting
cylinders.
, Cylinder Moulding Location - Answer Mould closest to where cylinders will initially cure.
Must stay in cure location for 28 +/- 8 hours.
Consolidating Test Specimens - Answer Rodding used with slump greater than
40, vibration used with slump equal or less than 40.
Placing Concrete In Moulds - Answer 2 or 3 lifts or layers.
Finishing Mould Surface - Answer No depressions larger than 3mm if specified
strength is less than 35 MPa, none larger than 1mm at 35 MPa or greater.
Finishing Beams - Answer Wood float
Rodding - 100mm cylinder - Answer 20 strokes/lift
Rodding - 150mm cylinder - Answer 25 strokes/lift
Rodding - 200mm cylinder - Answer 50 strokes/lift
Rodding - 250mm cylinder - Answer 75 strokes/lift
Self-Consolidating Concrete - Answer Place into mould in one lift, slightly overfilling the
top. Tap the outer sides 10 or more times with mallet to close gaps.
Filling/Vibration Moulds - Answer Use 2 equal lifts. Avoid overfilling more than 6mm.
After 2nd layer, add enough concrete to overfill by 3mm and strike off.
Correct Answers
Temperature measuring - Answer Devices must be able to measure temperatures
between 0 and 50 degrees C, accurate to 0.5 degrees C.
Moisture Room - Answer Temperature must be read every 15 mins by a recorder- Must
be accurate to 1 degree C.
Verify temperature recorders - Answer Every 6 months or whenever there is a
question of accuracy
Reference Temperature Measuring Device - Answer Available for calibration of
other devices, MUST be accurate to +/- 0.2 degrees C. Must have certificate or
document available for view.
Specimens must be moulded when? - Answer 20 minutes after sample time,
including transport and remixing.
Specimen/Aggregate Size - Answer Diameter of a cylindrical specimen, or cross-
sectional dimension of a beam shall be at least 3 times the size of the coarse aggregate
used in the concrete.
Handpicking - Answer Can be used to remove over-sized aggregate before casting
cylinders.
, Cylinder Moulding Location - Answer Mould closest to where cylinders will initially cure.
Must stay in cure location for 28 +/- 8 hours.
Consolidating Test Specimens - Answer Rodding used with slump greater than
40, vibration used with slump equal or less than 40.
Placing Concrete In Moulds - Answer 2 or 3 lifts or layers.
Finishing Mould Surface - Answer No depressions larger than 3mm if specified
strength is less than 35 MPa, none larger than 1mm at 35 MPa or greater.
Finishing Beams - Answer Wood float
Rodding - 100mm cylinder - Answer 20 strokes/lift
Rodding - 150mm cylinder - Answer 25 strokes/lift
Rodding - 200mm cylinder - Answer 50 strokes/lift
Rodding - 250mm cylinder - Answer 75 strokes/lift
Self-Consolidating Concrete - Answer Place into mould in one lift, slightly overfilling the
top. Tap the outer sides 10 or more times with mallet to close gaps.
Filling/Vibration Moulds - Answer Use 2 equal lifts. Avoid overfilling more than 6mm.
After 2nd layer, add enough concrete to overfill by 3mm and strike off.
