In addition to the fuel cell, what other equipment is needed for small fuel cell systems to operate?
What will be an ideal response?
In addition to the fuel cell, small fuel cell systems also include air and water filters, control units, a reformer unless higher temperature units are set up to do internal reformation, some type of fuel cleaning unit (to take sulfur out in particular), heat exchangers, tie-ins to the residential heating system, a cooling water system, power conditioning that includes AC to DC converters, and a burner to combust any fuel gas not used in the fuel.
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The signal lines which carry parallel information in or out of the microprocessor are called the
A) serial input lines. B) data bus. C) transmission lines. D) control bus.
Which one of these statements is TRUE?
A) The current capacity of a battery decreases with an increase in current demand. B) The current capacity of a battery increases with an increase in current demand. C) The current capacity of a battery increases at relatively low temperatures. D) The current capacity of a battery increases at relatively high temperatures.
Match each item with a statement below.
A. every C program must contain this function B. executable file which, by default, contains a compiled C program C. a single byte in which all bits are set to zero D. modulus operator E. denotes the beginning of a comment F. is a header file G. denotes the beginning of a block of code H. command for the C compiler in Linux operating systems I. is a preprocessor directive
Taper taps generally have lead in chamfers equal to or greater than ____ pitches.
A. 3 B. 10 C. 5 D. 2