If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:

If aggregate size of 40-50 mm is to be tested for determining the prop

1.	If aggregate size of 40-50 mm is to be tested for determining the proportion of elongated aggregates, the slot length of the gauge should be:
A.	45 mm
B.	53 mm
C.	90 mm
D.	81 mm
Answer» E.