Title: Unit 4 Quiz
Course: SGRD 100 Smart Grid Overview > Section: SGRD 100 Smart Grid Overview

Q: Combined heat and power (CHP) is also known as
- distributed generation
- cogeneration
- combined cycle power
- reversible heat engine
A: cogeneration

Q: The overall efficiency of a system that utilize waste heat from electricity production compared to a system that does not
- is lower
- is the same
- is higher
- equals 100%
A: is higher

Q: In islanded mode, microgrid loads may be
- supplied by distributed power sources
- supplied by storage sources
- disconnected by microgrid energy matter
- all of the above
A: all of the above

Q: Typical microturbine efficiencies are
- 5 - 15 %
- 75 - 85 %
- 25 - 35 %
- 90 - 100 %
A: 25 - 35 %

Q: A microturbine operates on which thermodynamic cycle
- Brayton cycle
- Rankine cycle
- Carnot cycle
- Otto cycle
A: Brayton cycle

Q: Use of waste heat from electricity production for heating and cooling is called
- cogneration
- trigeneration
- combined cycle power
- gasification
A: trigeneration

Q: A fuel cell converts what kind of energy to electrical energy
- nuclear energy
- mechanical energy
- chemical energy
- gravitational energy
A: chemical energy

Q: At the anode of a proton exchange membrane fuel cell
- hydrogen dissociates into protons and electrons
- oxygen combines with hydrogen to produce water
- hydrogen combines with a carbonate ion
- methanol combines with water
A: hydrogen dissociates into protons and electrons

Q: Which of the following is a "high temperature" fuel cell capable of internal reforming of H_2 gas
- molten carbonate FC
- direct methanol FC
- phosphoric acid FC
- proton exchange membrane FC
A: molten carbonate FC

Q: The typical voltage of an individual fuel cell is
- 345 - 764 kV
- 10 - 12 V
- 110 - 120 V
- 0.6 - 0.7 V
A: 0.6 - 0.7 V

Q: An absorption chiller uses heat and a thermo chemical reaction to replace what stage of the vapor-compression refrigeration cycle
- expansion
- condensation
- compression
- evaporation
A: compression

Q: Energy in water can the the form of
- gravitational energy
- pressure energy
- kinetic energy
- all of the above
A: all of the above

Q: The energy per unit weight of water has the physical dimension of length and is called the
- specific weight
- head
- energy density
- flow rate
A: head

Q: Large scale hydroelectric generation accounts for what percentage of U.S. electronic power
- 1 %
- 10 %
- 3 %
- 30 %
A: 10 %

Q: A hydrokinetic system utilizes
- velocity head of free flowing water
- elevation head established by a dam
- kinetic energy of jets which turn an impulse turbine
- steam driven turbine
A: velocity head of free flowing water