Technician A says shot blasting is becoming more popular due to environmental concerns about other cleaning methods. Technician B says shot sizes are rated 00 to 110. Who is correct?
A. Technician A
B. Technician B
C. Both technicians
D. Neither technician
Answer: A
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Three resistors are connected in parallel to a 12-volt battery. The total current flow from the battery is 12 amperes. The first resistor is 3 ohms and the second resistor is 6 ohms. What is the value of the third resistor?
A) 1 ohm B) 2 ohms C) 3 ohms D) 4 ohms
Why are vertical suction risers often smaller than the horizontal runs on the same suction line?
A) The risers are sized smaller to increase the pressure drop for improved control. B) The risers are sized smaller to minimize pressure drop. C) The risers are sized smaller to maintain a minimum velocity to lift the oil. D) The risers are sized smaller to minimize noise.
The most common storage cycle is
A) weekly. B) seasonal. C) monthly. D) 24 hours.
Identify this component
A) A vacuum motor
B) A vacuum pump
C) A heating coil
D) None of these