The maximum dry unit weightobtained from a standard compaction test on a silty sand forest road subgrade soil is 110 lb/ft^3. The corresponding optimum water content is 26%.The compaction specifications call for compaction to 90% or greater of the maximum dry unit weight by the standard compaction test, and a water content of 2% less than the optimum water content. If the existing natural water content is 17%, how much water, in gallons, must be added per cubic yard of compacted soil to meet the specification?

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.