A driver is traveling at 30 mph on a level road. A broke-down UPS truck is unexpectedly spotted on the road ahead, blocking the road. The driver cannot swerve out of the way but the driver is able to come to a stop just before hitting the truck. Assume AASHTO standards for both reaction time and for f Determine PIEV distance+braking distance (i. e. determine the SSD) 5. Calculate the SSD based on AASHTO standards for 20, 30,40, 50, 60, and 70 MPH, on level grade A heavy truck with a weight horsepower ratio of 300 bhp has an initial speed of 55 mph on a 0% grade. After completing first a 2% climb of unknown distance, then a 3% climb fr 2000 feet, the truck is traveling at 30 mph. Find the distance of the 2% grade. 6,

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Fluids at rest possess no flow energy. a)- true b)- false

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false