Which of the following is used to estimate the size of a room?
A) Window frames B) Bricks C) Room trim D) Drop ceilings
D
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Why is it necessary to check the calibration of a gauge manifold periodically?
What will be an ideal response?
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 avoid a nitrate depression period when it is added to a garden soil, about how many kg of nitrogen must be added to a load of grass clippings that contains 1000 kg of C and 25 kg of N?
A) 100 B) 15 C) 75 D) 35 E) 50
A mixed number is a whole number and a fraction.
Answer the following statement true (T) or false (F)