Technician A says that PAFC fuel cells can use hydrogen as fuel. Technician B says that PEM fuel cells can use hydrogen as fuel. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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What is a level cross section?
What will be an ideal response?
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Which of the following is a government agency that may conduct on-site investigations to determine the toxicity of materials used in workplaces?
a. NAVFAC b. FHWA c. CDC d. NIOSH
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Which of these should never be used as windshield washer fluid?
A) Ethylene Glycol B) 50 % Washer fluid and 50% water mixture C) 20 % Washer fluid and 80% water mixture D) Pure water
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An electronic charging scale measures the volume of refrigerant flow into a refrigeration system.
Answer the following statement true (T) or false (F)
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