What are two promising trends in the U.S. MWS generation picture?
What will be an ideal response?
Increased recycling and slower growth in per capita MSW generation
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A motor overload relay consists of a current-sensing unit and a mechanism activated by the sensing unit that _____.
a. dissipates excess current b. opens the motor circuit c. trips an alarm d. decreases motor speed
Determine the current PCR for this section. Then, assume a new roughness measurement is expected soon. If the PCR falls below 60, the section will be scheduled for rehabilitation. Determine the new IRI value that will trigger the rehabilitation.
An agency uses the following formula to determine pavement condition rating:
PCR = 95.6 – 5.51 (5.0-ROUGH) – 1.59 LNALL – 0.221 AVGOUT – 0.0306 LONG –
0.531 TRAN
where:
ROUGH = roughness measured by present serviceability rating (PSR), scale of 0 to 5
LNALL = natural logarithm of alligator cracking, ft per mile
AVGOUT = outer wheel path rutting (all locations averaged), 0.01 inch
LONG = longitudinal cracking, ft per mile
TRAN = transverse cracking, number of cracks per mile
And, present serviceability rating is determined as:
A pavement section has the following distress data:
IRI = 105 in/mi
Alligator cracking = 110 ft/mi
Average rutting = 0.20 inch
Longitudinal cracks = 130 ft/mi
Transverse cracks = 12/mi
What will be an ideal response?
To run a program in the background, append the ____ character to the end of the command used to start the program.
A. & B. * C. $ D. @
How do jogging circuits work?
What will be an ideal response?