What is the typical pressure setting for a relief valve at on a residential hot water boiler?
A) 15 psig B) 12 psig C) 160 psig D) 30 psig
D
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What is the MOST-Likely material that will not corrode and that routinely replaces steel core plugs in cast iron blocks?
A. copper B. brass C. aluminum D. lead
What principle do the Freightliner APU and Ballard type fuel cells use?
A. Alkaline B. Phosphoric acid C. Solid oxide D. Proton exchange membrane
Answer the following statement(s) true (T) or false (F)
1. Fuel cells can burst into flames, explode, and electrocute you. 2. The Hazard Communication Standard details how workplace hazards are to be communicated to the employee by the employer. 3. Fuel cells contain one general electrical system that is used for all applications. 4. NFPA 853 applies to the design, construction, and installation of stationary fuel cells as regards fire protection. 5. Codes and standards are only enforced by the company itself, and can never have the force of law.
An ATC system has the ability to automatically ________
A) change the function door setting B) move the temperature-blend door C) adjust the blower speed D) All of these