The fuel injectors used on a gasoline direct injection system are pulsed on using what voltage?
A) 100 to 110 V B) 200 to 220 V C) 12 to 14 V D) 50 to 90 V
D
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When fuel exits a gear pump discharge port while an engine is run, what force moves more fuel into the gear pump inlet in a typical diesel fuel subsystem?
A. gravity B. atmospheric pressure C. charging pressure D. injection pressure
As a general rule, a panelboard for which more than 10 percent of its overcurrent devices are rated at ____ amperes or less, and for which neutral connections are provided, is defined as a lighting and appliance branch-circuit panelboard.
A. 10 B. 20 C. 30 D. 40
Answer the following statements true (T) or false (F)
1 A gravimetric feeder conveys material at a controlled rate by running at a set motor speed. 2 A volumetric feeder must have a predetermined maximum feed rate that is calculated by the feeder’s maximum motor speed and material density. 3 A trickle valve is a free-hanging flap between two different pressure environments and maintains an air seal inside a flow area. 4 Flare systems are most often used during emergency situations and unit start-ups and shutdowns to dispose of gases rapidly. 5 "Landfills allow contaminants to leach into the soil to complete their for proper decomposition." 6 A cement truck is an example of a drum mixer.
Used engine oil should be disposed of by all of the following methods EXCEPT ________
A) Disposed of in regular trash B) Burned onsite in a waste oil approved heater C) Burned offsite in a waste oil approved heater D) Shipped off site for recycling