A $6-$cylinder reciprocating ammonia compressor between $\backslash (-10^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ saturated suction and $\backslash (30^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ saturated condensing temperatures has a cylinder bore of $80$ mm and a stroke of $65$ mm $.$ It runs at $\backslash (1650\backslash$mathrm$\{$rev$\}/\backslash$mathrm$\{$min$\}\backslash ),$ has a refrigerating capacity of $95$ kW and a clearance of $\backslash (4\mathrm{.}5\backslash \%\backslash ).$ The drive power is measured at $35$ kW $.$ Assuming a standard cycle, calculate:

$4\mathrm{.}1$ the compressor displacement

$4\mathrm{.}2$ the clearance volumetric efficiency

$4\mathrm{.}3$ the actual volumetric efficiency, and

$4\mathrm{.}4$ the compressor efficiency.