Oxides of nitrogen (NOx) are formed when combustion temperatures reach more than:
A. 3,000 degrees F.
B. 2,500 degrees F.
C. 1,800 degrees F.
D. 2,000 degrees F.
Answer: B
You might also like to view...
Which of the following is true of the percentage of oxygen in air at sea level?
A. 100% B. 80% C. 50% D. 20%
Identify and explain the function of the surveying equipment shown in Figure P5–3.
What will be an ideal response?
Technician Asays if all gauges are not operating, check the fuse. Technician B says only one gauge will be affected if the instrument cluster ground is open. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
Preparing a house for a future solar array is not complicated and can simplify the eventual installation if done properly. Where there is a south or near-south facing roof, it should be designed to have a minimum of ____ square feet of unshaded area with no mechanical penetrations such as plumbing vents, wires, or other obstructions.
A. 100 B. 200 C. 300 D. 400