A vehicle with high levels of oxides of nitrogen (NOx) is being discussed. Technician A says engine overheating is a likely cause. Technician B says a defective turbocharger intercooler may be the cause. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: B
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The top of a cylinder receives less lubrication, and it is subjected to the high pressure of the piston rings against the cylinder wall as the air-fuel mixture is ignited. This can result in ____________________ wear.
Fill in the blank(s) with the appropriate word(s).
Your tractor broke down and was in the shop for 5.5 days. Mechanics worked on it for 23.2 hours at $80 per hour. They replaced $3,278.21 worth of parts. You lost $20 per hour by not having the use of the tractor. You work a 12-hour day. What did the breakdown actually cost?
What will be an ideal response?
When competition exists, one species of wildlife will always increase in number as another decreases
Indicate whether the statement is true or false.
A hybrid variety has an effect called hybrid vigor or _____________________ that makes the plant take on characteristics superior to the parent plants
Fill in the blank(s) with correct word