A Room$-$By$-$Room load calculation for a small office building indicates a heat gain for each room as shown in the table below.

$\backslash$table$[[$Room$,$Heat Gain $($Btuh$),$CFM$],[1,3080,],[2,2464,],[3,2996,],[4,1904,],[5,3080,],[6,3500,],[7,2352,],[8,1400,],[9,3444,],[10,3780,],[$Total$,,]]$

What size air conditioner is needed?

Following are the results from the liquid and plastic limit tests for a soil. Liquid

limit test:

Plastic limit test: $PL=18\mathrm{.}7\%$

a$.$ Draw the flow curve and obtain the liquid limit$.$

b$.$ What is the plasticity index of the soil?

Determine the liquidity index of the soil when the in situ

moisture content is $26\%.$