Afour-lane divided multilane highway in rolling terrain has five access points per mile and 11-ft lanes with a 4-ft shoulder on the right side and 2-ft shoulder on the left. the peak-hour factor is 0.84 and the traffic stream consists of 6% trucks, 4% buses and 3% recreational vehicles. the driver population adjustment factor is estimated at 0.90. if the analysis flow rate is 1250 pc/h/ln, what is the peak-hour volume?

(a)976 veh/h

(b)1345 veh/h

(c)1389 veh/h

(d)1779 veh/h

What precautions should you take to prevent injuries when dealing with heavy loads?

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.