Technician A says that a diesel fuel tank plays a role as a heat exchanger in many modern diesel fuel systems. Technician B says that rectangular shaped fuel tanks can provide the same strength using thinner wall thickness than that required for cylindrical tanks. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: A
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Studies have shown that the traffic flow on a two-lane road adjacent to a school can be described by the Greenshields model. A length of 0.5 mi adjacent to a school is described as a school zone (see Figure 6.19) and operates for a period of 30 min just before the start of school and just after the close of school. The posted speed limit for the school zone during its operation is 15 mi/h. Data collected at the site when the school zone is not in operation show that the jam density and mean free speed for each lane are 125 veh/mi and 57 mi/h. If the demand flow on the highway at the times of operation of the school zone is 90% of the capacity of the highway, determine: (i) The speeds of the shock waves created by the operation of the school zone (ii) The number of vehicles affected by the
school zone during this 30- minute operation What will be an ideal response?
Butter, lard, and meat containing fat turn ____________________ in a short time if left at room temperature
Fill in the blank(s) with correct word
The ____ circuit supplies the initial current for the field coil that starts the buildup of the magnetic field.
A. starter B. excitation C. preexcitation D. charging
Three-wire controls need four wires to connect the control device into the circuit.
Answer the following statement true (T) or false (F)