Identify the four basic pump designs (48)
What will be an ideal response?
Vane, slipper, roller, gear
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Which of the following valve types is NOT approved for use in a gas system?
a. ball b. gate c. butterfly d. plug
Air in the brake hydraulic system can cause all of these EXCEPT ________
A) Lower than normal brake pedal B) Spongy brake pedal C) May require the driver to "pump up" the brakes before they will stop the vehicle D) Hard brake pedal
UPS battery back-up systems in hospitals _________________
A. are used to power the hospital's entire load during a blackout B. are used to reduce peak demand C. are used to start emergency generators during a power outage D. are used to provide power during the transition period which is the time it takes for an emergency generator to start and come on line
Welding in vertical and overhead positions should not be attempted with SMAW electrodes larger then 3/16? in
diameter unless the electrode is classified as _____. a. low-hydrogen (F4) b. fast-freeze (F3) c. fill-freeze (F2) d. fast-fill (F1)