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CCIL Quiz With Correct Questions and Answers
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CCIL Quiz With Correct Questions and Answers
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CCIL QuizBetween what percentages must you sample a concrete truck? - Answer -10% and 90%
What is grab sampling? - Answer -Securing at one point of the discharge as fast as possible.
Tamping rod size for 100 x 200mm cylinders - Answer -10 +/- 1mm in diameter, between 450 mm and
600 mm
Minimum sample required for 150 x 300mm cylinder? - Answer -30L
How long do you have to obtain, transport and remix sample? - Answer -10 mins
Vibration Frequency of internal vibrator - Answer -120Hz
Size of internal vibrator. - Answer -20 to40mm in diameter, minimum 50mm in length.
weight of mallet. - Answer -0.6 +- 0.3kg
strike off bar size - Answer -6mm x 25mm x 450mm
, Temp of water storage tanks - Answer -23 +/- 2
Water in a storage tank must be saturated with what? - Answer -calcium hydroxide
minimum moist room humidity - Answer -95%
Range of thermometer - Answer -0 to 50 degrees
How often should a temperature recorder take a reading? - Answer -15min
How often should temperature recorder be checked to make sure it'd working? - Answer -Every 6
months
If difference between temp readings is greater than 1c, temp recorder shall be adjusted to within ____
of reference measuring device. - Answer -0.5 C
How long after sampling must strength test specimens be completed? (Cylinders) - Answer -20mins
How long must cylinders sit on site? - Answer -28+/- 8h
If the slump is less than 40, you must use what method of concrete consolidation? - Answer -Vibratory
How much material can be above the top of a cylinder mould that is 30MpA - Answer -3mm
How many insertions per lift with a vibrator on a 100 x 200mm cylinder? - Answer -1
What temp can labratory test specimens be stored at when curing? - Answer -23 +/- 2 C
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