Sttuation $3$: A $110$ kV $.50$ Hz $,$ three$-$phast overthead transmlscton line dellivers a load of $40$ MW at $0\mathrm{.}8$ pf lagging at the recelving$-$end and has the following constants: $A=D=\frac{0\mathrm{.}98}{3}$;$B=\frac{100}{25}$;$C=\frac{0\mathrm{.}0005}{80}S.$

$31.(1)$ Determine sending$-$end line valtage.

A$.123\mathrm{.}74$ kV

B$.132\mathrm{.}47$ kV

C$.174\mathrm{.}23$ kV

D$.147\mathrm{.}32$ kV

$32.(2)$ Determine sending$-$end current.

A$.254\mathrm{.}04$ A

B$.240\mathrm{.}56$ A

C$.246\mathrm{.}05$ A

D$.260\mathrm{.}54$ A

$33.(3)$ Determine voltage regulation.

A$.61\mathrm{.}62\%$

B$.36\mathrm{.}67\%$

C$.14\mathrm{.}79\%$

D$.22\mathrm{.}88\%$

$34.(4)$ Determine transmission efficlency.

A$.83\mathrm{.}56\%$

B$.88\mathrm{.}23\%$

C$.91\mathrm{.}27\%$

D$.85\mathrm{.}72\%$