Explain the difference between an electric vehicle and a fuel-cell vehicle.
What will be an ideal response?
Electric vehicles powered by an electric motor run off a battery pack.A fuel cell powered vehicle is basically the same as the electric vehicle except a fuel cell produces and supplies electric power to the electric motor instead of a battery pack.
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Oxygen gas welding can only be performed with natural gas fuel.
Answer the following statement true (T) or false (F)
____ is well suited for high-pressure and high-temperature applications and is frequently used in piping systems that transport water, oil, petroleum, and steam.
A. Cast iron pipe B. Steel pipe C. Stainless steel pipe D. Plastic pipe
Los guantes de hule pueden sufrir daños por causa de:
a. almacenamiento en sus protectores de cuero. b. lavado con agua corriente en lugar de limpiadores químicos. c. cremas para manos. d. polvo para guantes.
For each 12,000 Btu/h capacity, a wastewater-cooled condensing unit uses approximately ____________________ GPM.
Fill in the blank(s) with the appropriate word(s).