Technician A says that to check the operation of a vacuum brake booster, the brake pedal should be depressed until the assist is depleted and then start the engine. Technician B says that the brake pedal should drop when the engine starts, if the booster is okay. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
C
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To develop a(n) ____________________ drawing, an orthographic view of the object is first drawn that best describes the shape and shows the most detail of the object.
Fill in the blank(s) with the appropriate word(s).
Which of the following describes an open circuit?
A. energized B. switched on C. closed D. no current flow
When using GTAW for open-root V-groove welds on carbon steel pipe in the 2G position, what can you do
to prevent the weld puddle from sagging? a. Increase the travel speed. b. Increase the welding current. c. Raise the torch work angle slightly, but not more than 10 degrees. d. Drop the torch work angle slightly, but not more than 10 degrees.
Why is lubricant spayed onto the underside of aluminum pistons?
A. To assist in keeping piston crown temperatures lower. B. To lower ignition temperatures. C. Because moving cylinders provide splash circulation of oil. D. It is the only method available to lubricate wrist pins.