The gas preflow and postflow times depend on which of the following?
A. Travel speed
B. Torch angle
C. Filler rod angle
D. Nozzle size
Answer: D
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A track has the shape of a square capped on two opposite sides by semicircles. The length of a side of the square is measured to be 181.2 ± 0.1 m.
a. Compute the area of the square and its uncertainty.
b. Compute the area of one of the semicircles and its uncertainty.
c. Let S denote the area of the square as computed in part (a), and let C denote the area of one of the semicircles as computed in part (b). The area enclosed by the track is A=S+2C. Someone computes the uncertainty in A as 
Is this correct? If so, explain why. If not, compute the uncertainty in A correctly.
Turbochargers are being discussed. Technician A says that the compressor wheel is mounted in the air intake system. Technician B says that boost pressure is limited by the wastegate. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The voltage across a 1-? resistor is  figure 1.png)
. (a) What is the total energy absorbed by the resistor? (b) What fraction of this energy absorbed is in the frequency band -2???2 ?
What will be an ideal response?
Two technicians are discussing atmospheric pressure. Technician A says that atmospheric pressure can achieve work. Technician B says that the earth has sufficient natural vacuum to perform automotive work. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B