EGEE 420 Exam 2 UPDATED Exam
Questions and CORRECT Answers
The operating temperature of a SOFC is:
50-100 C
150-200 C
700-1000 C - CORRECT ANSWER - 700-1000 C
An advantage of SOFC is:
high efficiency
solid electrolyte
both - CORRECT ANSWER - Both
A disadvantage if SOFC is:
CO intolerance
high temp corrosion
catalyst flexibility - CORRECT ANSWER - high temp corrosion
A disadvantage of PEMFC is:
expensive catalyst
sensitive to fuel impurities
both - CORRECT ANSWER - both
in PEMFC the electrodes are separated by:
cation exchange membrane
anion exchange membrane
electron exchange membrane - CORRECT ANSWER - Cation exchange membrane
, The membrane thickness in PEMFC is usually around
fifty nanometers
fifty micrometers
fifty millimeters - CORRECT ANSWER - fifty micrometers
In H2/O2 PEMFC the catalyst is usally:
Pt
Cu
Ni - CORRECT ANSWER - Pt
What type of fuel is used in DMFC?
hydrogen
methanol aqueous solution
natural gas - CORRECT ANSWER - methanol aqueous solution
An advantage of the methanol as fuel in DMFC is:
high power output
inexpensive catalyst
storage and transportation - CORRECT ANSWER - storage and transportation
In AFC the electro-catalyst can be made from:
metal oxides
Ag
Both - CORRECT ANSWER - Both
AFC is intolerant to:
CO2
N2
Questions and CORRECT Answers
The operating temperature of a SOFC is:
50-100 C
150-200 C
700-1000 C - CORRECT ANSWER - 700-1000 C
An advantage of SOFC is:
high efficiency
solid electrolyte
both - CORRECT ANSWER - Both
A disadvantage if SOFC is:
CO intolerance
high temp corrosion
catalyst flexibility - CORRECT ANSWER - high temp corrosion
A disadvantage of PEMFC is:
expensive catalyst
sensitive to fuel impurities
both - CORRECT ANSWER - both
in PEMFC the electrodes are separated by:
cation exchange membrane
anion exchange membrane
electron exchange membrane - CORRECT ANSWER - Cation exchange membrane
, The membrane thickness in PEMFC is usually around
fifty nanometers
fifty micrometers
fifty millimeters - CORRECT ANSWER - fifty micrometers
In H2/O2 PEMFC the catalyst is usally:
Pt
Cu
Ni - CORRECT ANSWER - Pt
What type of fuel is used in DMFC?
hydrogen
methanol aqueous solution
natural gas - CORRECT ANSWER - methanol aqueous solution
An advantage of the methanol as fuel in DMFC is:
high power output
inexpensive catalyst
storage and transportation - CORRECT ANSWER - storage and transportation
In AFC the electro-catalyst can be made from:
metal oxides
Ag
Both - CORRECT ANSWER - Both
AFC is intolerant to:
CO2
N2
