Q$3.$ A self$-$propelled tamping foot compactor will be used to compact a fill being

constructed of clay material. Field tests have shown that the required density can be

achieved with $3$ passes of the roller operating at an average speed of $5mph.$ The compacted

lift will have a thickness of $8in.$ The compacting width of this machine is $9\mathrm{.}5ft.$

$*1BCY=0\mathrm{.}83CCY$

$-$The scraper production, estimated for the project, is $530BC\frac{Y}{h}r.$

$-$How many rollers will be required to maintain this production?

$-$Assume a $1$ hour efficiency.