The velocity pressure of air moving through ductwork is measured:
A) By taking the pressure with the open end of the tube facing the airstream.
B) By holding the open end of the tube perpendicular to the air stream.
C) By subtracting total pressure from static pressure.
D) By subtracting static pressure from total pressure.
D
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Any engine with an even number of cylinders has pairs of cylinders called ____________________.
Fill in the blank(s) with the appropriate word(s).
You are asked by the city engineer to estimate the AADT on a highway using short term volume counts and data from a nearby continuous count station (using the data in Tables 4.6, 4.7, and 4.8). The city engineer gives you results of a three-hour study conducted the previous June, and asks you to combine this data with a new three-hour count you just conducted. Estimate the AADT for this road using all the available data below.
Collected on a Tuesday in June 7:00–8:00 a.m. 605 8:00–9:00 a.m. 755 9:00–10:00 a.m. 952 Collected on a Thursday in September 1:00–2:00 p.m. 1,714 2:00–3:00 p.m. 1,820 3:00–4:00 p.m. 1,844 What will be an ideal response?
The diesel injection pump is usually driven by a _______
A) Shaft drive off of the crankshaft B) Chain drive off of the camshaft C) Belt off the crankshaft D) Gear off the camshaft
What is the square root of 121?
Fill in the blank(s) with the appropriate word(s).