EGEE 101
An automobile engine gives 35,000 BTUs of mechanical energy from 100,000 BTUs of fuel. The transmission, axles and tires deliver 30,000 BTUs of mechanical energy to the highway, moving the car forward. What is the overall efficiency of this vehicle? A) 30% B) 27% C) 27,000 D) 90%
A) 30%
Large energy companies have drilled thousands of wells to exploit the Marcellus Shale formation. A Pennsylvania motel operator finds that her previously struggling motel is suddenly fully booked most of the time with people who are working for these natural gas operations. This is an example of A) An externality B) Embedded Energy C) Energy Returned on Energy Invested - EROI D) Energy Efficiency
A) An externality
What is the separation of materials based on differences in the volatility called? A) Distillation B) Cracking C) Coking D) Reforming
A) Distillation
A pound of chicken contains 306 Calories of chemical energy. 3,439 Calories were used to produce and deliver that chicken to you. This 3,439 Calories is an example of A) Embedded Energy B) Energy Efficiency C) Energy Return on Energy Invested - EROI D) An externality
A) Embedded Energy
When analyzing how much energy is required to produce an energy product, e.g. ethanol from corn, we are talking about A) Energy Return on Energy Invested - EROI B) Embedded energy C) Efficiency of energy transformation D) Externalities
A) Energy Return on Energy Invested - EROI
Which light bulb uses mercury vapor? A) Fluorescent B) Incandescent C) Bathroom Night Light D) Halogen
A) Fluorescent
In a car, the useful energy output is in the form of __________ energy. A) Mechanical B) Thermal / heat C) Chemical D) Radiation
A) Mechanical
In some rocks in a mountain, Uranium decays into daughter elements, and the rocks are slightly warmed. This is an example of what energy type changing into what other energy type? A) Nuclear into heat/thermal B) Thermal into nuclear C) Nuclear into chemical D) Electrical into mechanical/kinetic
A) Nuclear into heat/thermal
Which hydrocarbons have straight or branched chains of carbon atoms? A) Paraffins B) Cycloparaffins C) Aromatics D) None of the above
A) Paraffins
Which of the following recovery methods takes advantage of significant oil pressure in the reservoir? A) Primary B) Secondary C) Tertiary
A) Primary
In a light bulb, the useful energy output is in the form of __________ energy. A) Radiation B) Mechanical C) Thermal / heat D) Chemical
A) Radiation
Which place converts crude oil into useful products such as gasoline, fuel oil, waxes or asphalt? A) Refinery B) Drilling Rig C) Reservoir D) Mine
A) Refinery
In a car, the non-useful, waste energy output is in the form of __________ energy. A) Thermal / heat B) Radiation C) Mechanical D) Chemical
A) Thermal / heat
Carbonization is the process of heating coal in the absence of air to produce coke. A) True B) False
A) True
Coal provides nearly half of the electricity needed to run the servers for Facebook, Twitter, cable, texting and Google. A) True B) False
A) True
Fossil fuels are ancient plants and microbes that have escaped the normal complete decay process. A) True B) False
A) True
Petroleum contains lesser amount of oxygen atoms than coal does. A) True B) False
A) True
Smaller molecules tend to have lower viscosity A) True B) False
A) True
Transportation in the United States is built almost entirely on liquid fuels from petroleum. A) True B) False
A) True
Ali has a Wii that consumes 10 Watts when NOT in use (standby mode). He uses the Wii two hours each day. What is his annual electricity bill while NOT using the Wii? Assume electricity costs $.12 per kWh. A) $876 B) $9.64 C) $0.09 D) $9,640
B) $9.64 Feedback: Wii is in standby mode for 22 hours/day, 365 days/yearWii is using 10 Watts for 8,030 hours per year or 80,300 Watt-hours80.3 kWhs80.3 * $.12 = $9.64
Three energy conversion processes take place in succession. The first has an efficiency of 51%, the second is 50% efficient, and the third 10%. What is the efficiency of the entire process? A) 0.37 B) 0.0255 C) 0.0128 D) 1.11
B) 0.0255
The useful output from a heat engine is 962 joules. The energy that is wasted is 4428 J? What is the efficiency of the engine? A) 4.6 B) 0.1784 C) 0.217 D) 21.7
B) 0.1784
21 million Joules of chemical energy are supplied to a boiler in a power plant. 5,000,000 Joules of energy are lost up the smokestack. The boiler radiates 1.5 million Joules of heat to the atmosphere. What is the efficiency of the boiler? (2 points) A) 69.0 B) 0.690 C) 6.90% D) 27.5%
B) 0.690
If the energy input of a system is 87 calories and its output is 69 calories, what is the efficiency of the system? A) 0.18 B) 0.7931 C) 0.78 D) 0.2069 E) 0.2609
B) 0.7931
I can get 100 BTUs of energy from the ground by using 5 BTUs of energy to drill an oil well and pump the oil. This Energy Return on Energy Invested (EROI) is A) 5% 5/100 B) 20 100/5 C) 20% 100/5 D) Not enough information given
B) 20 100/5
If the world demand for energy is growing at the rate of 10% per year, when would we expect the energy demand to be twice today's? A) 6 years B) 7 years C) 20 years D) 10 years
B) 7 years
Which primary energy resource contributes the most to the production of electricity in the US? A) Hydroelectric B) Coal C) Nuclear D) Natural gas
B) Coal
Which primary energy source is the biggest contributor to the US electricity generation system? A) Hydropower B) Coal and Natural Gas are are equally the biggest C) Nuclear D) Natural gas E) Coal
B) Coal and Natural Gas are are equally the biggest
In a power plant, chemical energy is converted to what useful end product? A) Mechanical energy B) Electrical energy C) Thermal energy D) None of the above
B) Electrical energy
Embedded energy is A) Chemical energy in the materials of an object - its fuel value B) Energy of whatever form that was required to produce an object C) Heat energy stored in an object D) Potential energy
B) Energy of whatever form that was required to produce an object
All of the oil in a reservoir can be recovered. A) True B) False
B) False
Anthracite has higher volatile matter content than Bituminous coal. A) True B) False
B) False
Coal use has peaked in the modern world and humans are expected to use less and less as the years go on. A) True B) False
B) False
Coal use is in a steady decline worldwide. The future belongs to oil and natural gas. A) True B) False
B) False
Coke is produced by combustion of coal in a furnace. A) True B) False
B) False
Converting heat to mechanical energy is an efficient process. A) True B) False
B) False
Electric power is measured in terms of voltage. A) True B) False
B) False
Exponential growth typically proceeds gradually and evenly - each new addition is pretty much like the previous one. A) True B) False
B) False
Kerogen derived from higher plants gets converted to crude oil and natural gas when buried inside the earth for millions of years. A) True B) False
B) False
Kerogen produced from higher plants gets converted into natural gas. A) True B) False
B) False
Kerogens are formed by the transformation of inorganic matter into an insoluble, polymeric material A) True B) False
B) False
Knocking is a desirable feature in a four stroke engine. A) True B) False
B) False
Lignite has higher heating value than Bituminous coal. A) True B) False
B) False
Low and medium rank coals are ranked on the basis of volatile matter content. A) True B) False
B) False
Reservoir rock is a rock that produces crude oil. A) True B) False
B) False
The Middle Eastern countries are sitting on major coal reserves in addition to all their petroleum. A) True B) False
B) False
The following coal types are in order from low grade to high grade: anthracite, sub-bituminous, bituminous, lignite. A) True B) False
B) False
The human activity (economy, etc.) can grow to any size - there is no limit. A) True B) False
B) False
Today, the biggest use of coal is as a transportation fuel. A) True B) False
B) False
Lignite is the highest ranked coal. A) True B) False-lignite is the youngest ranked coal!!!
B) False-lignite is the youngest ranked coal!!!
What form of energy output accounts for the inefficiency of incandescent lights? A) Nuclear B) Heat C) Light D) Chemical
B) Heat
Nationwide, the biggest energy use in our homes is for A) Water heating B) Home heating and cooling C) Lights and appliances D) Refrigerators and freezers
B) Home heating and cooling
Which energy source is used most for US home heating? A) Coal B) Natural Gas C) Electricity D) Oil
B) Natural Gas
In which two sectors are keeping the place warm and keeping the lights on the two big uses of energy? A) Industry and Commercial B) Residential and Commercial C) Industry and Residential D) Transportation and Industry
B) Residential and Commercial
Which electricity generating device DOES NOT involve spinning a generator? A) Nuclear power plant B) Solar photovoltaic arrays C) Hydropower at a dam D) Coal-fired power plant
B) Solar photovoltaic arrays
Which one of the following is not a mode of heat transfer? A) Conduction B) Translation C) Radiation D) Convection
B) Translation
Which describes photosynthesis? A) Water and carbon dioxide react to form chlorophyll, glucose and light energy B) Water and carbon dioxide react (in the presence of chlorophyll and light energy) to form glucose (sugar) and oxygen C) Bacteria and other organisms burn glucose and other hydrocarbons (in the presence of oxygen) to release energy, water and carbon dioxide D) Glucose and oxygen react in living cells to produce chlorophyll and water
B) Water and carbon dioxide react (in the presence of chlorophyll and light energy) to form glucose (sugar) and oxygen
What is the function of a generator in a power plant? A) a. Convert chemical energy to mechanical energy B) b. Convert mechanical energy to electrical energy C) c. Convert thermal energy to mechanical energy D) d. None of the above
B) b. Convert mechanical energy to electrical energy
The amount of heat energy required to raise one gram of water by 1 degree Celsius is a A) BTU (British Thermal Unit) B) calorie C) Newton D) Kilogram
B) calorie
The useful output from a heat engine is 249 calories. The energy that is wasted is 5675 Joules. What is the efficiency of the engine? A) 0.8157 B) 0.1843 C) 0.1556 D) 0.8444
C) 0.1556 Feedback: 1 calorie = 4.184 joulesInput = OutputInput = Waste(5675/4.184) + Useful(249) = 1,605 caloriesEfficiency = Useful / Total = 249/1605 = 0.155
If the energy input of a system is 200 calories and its useful output is 36 calories, what is the efficiency of the system? A) 0.69 B) 0.78 C) 0.18 D) 0.7931
C) 0.18
If a cycloparaffin compound has six carbon atoms, how many hydrogen atoms are present in the molecule? A) 8 B) 10 C) 12 D) 14
C) 12
Which hydrocarbons have benzene and rings of benzene? A) Paraffins B) Cycloparaffins C) Aromatics D) None of the above
C) Aromatics
Which one of the following is an example of clean coal technology? A) Production of coke B) Coal combustion C) Carbon dioxide sequestration D) None of the above
C) Carbon dioxide sequestration
Which industry uses the most energy? A) Paper B) Metal C) Chemical D) Petroleum refining
C) Chemical
Which fossil fuel is expected to last the longest at current rates of consumption? A) Natural gas B) Petroleum C) Coal D) Nuclear E) Hydropower
C) Coal
When my cell phone receives a text, the phone vibrates. This is an example of what energy type changing into what other energy type? A) Potential into mechanical B) Electric into chemical C) Electric into kinetic/mechanical D) Chemical into electric
C) Electric into kinetic/mechanical
In a power plant, chemical energy is finally converted into ______ energy. A) Mechanical B) Chemical C) Electrical D) Thermal
C) Electrical
With increase in the rank of coals, which one of the following element's composition decreases? A) Carbon B) Nitrogen C) Hydrogen D) Sulfur
C) Hydrogen
Which one of the following has the highest heating value per pound? A) Coal B) Oil C) Natural gas
C) Natural gas
Which primary energy source contributes the most to home heating requirements? A) Fuel oil B) Propane C) Natural gas D) Electricity
C) Natural gas
Cubic feet is used to measure the quantities of A) Coal B) Petroleum C) Natural gas- because cubic is volume
C) Natural gas- because cubic is volume
From a television, the useful output is in the form of ____ energy. A) Chemical B) Thermal or Heat C) Radiant D) Mechanical
C) Radiant
Which of the following recovery methods for oil is the most expensive? A) Primary B) Secondary C) Tertiary
C) Tertiary
In a electricity generation company, which of these are an externality? A) The legal fees of the company lawyers B) The money paid to the company for electricity C) The hospital bill of the asthma patient sickened by air pollution downwind of the company exhaust stacks (chimneys) D) The money paid by the company for coal
C) The hospital bill of the asthma patient sickened by air pollution downwind of the company exhaust stacks (chimneys)
In a business enterprise, which of these are an externality? A) The travel expenses of the sales staff B) The electric utility bill of the manufacturing plant C) The profits of the local restaurant that sells meals to business employees after hours D) The income from royalties on business-owned patents
C) The profits of the local restaurant that sells meals to business employees after hours
In a light bulb, the non-useful, waste energy output is in the form of __________ energy. A) Radiation B) Mechanical C) Thermal / heat D) Chemical
C) Thermal / heat
Which sector of the US economy uses energy the least efficiently? A) Residential B) Commercial C) Transportation-they use the most energy out of any sector!!! D) Industry and manufacturing
C) Transportation-they use the most energy out of any sector!!!
Which coal type contains the most carbon and the least moisture? A) Lignite B) Sub-bituminous C) Bituminous D) Anthracite
D) Anthracite
Which energy conversion device typically has the lowest energy efficiency? A) Home oil furnace B) Steam boiler C) Electric motor D) Automobile engine
D) Automobile engine
Which among the fossil fuel reserves are abundantly available in United States? A) Coal B) Natural gas C) Petroleum D) Both coal and natural gas
D) Both coal and natural gas
A half-pound of propane is burned in a grill on a patio. This is an example of what energy type changing into what other energy type? A) Kinetic into heat B) Heat into chemical C) Potential into kinetic D) Chemical into heat/thermal
D) Chemical into heat/thermal
To figure out how long something that is growing will take to double in size, A) Multiply the growth rate by .7 B) Divide the growth rate by .7 C) Divide .7 by the growth rate D) Divide 70 by the growth rate percentage
D) Divide 70 by the growth rate percentage Feedback: Dividing 70 by the growth rate percentage (e.g. 10 - 10% growth) is the same as dividing .7 by the growth rate (e.g. .1 - 10% growth). Both answers are correct.
I plug my cell phone into its charger over night, and its battery is recharged. This is an example of what energy type changing into what other energy type?l A) Electric into heat B) Electric into potential C) Electric into mechanical D) Electric into chemical
D) Electric into chemical
Which step in the process of converting a fuel to electricity is the least efficient? A) Chemical to heat (hot gases) B) Mechanical to electrical (turning a generator) C) Electricity distribution D) Heat to mechanical (making a turbine spin)
D) Heat to mechanical (making a turbine spin)
Which coal use technology could be used in the future as a pollution-free, CO2 neutral source of electricity and chemical feedstocks? A) Coking B) Powdered coal combustion C) Co-generation D) Integrated Gasification Combined Cycle (IGCC)
D) Integrated Gasification Combined Cycle (IGCC)
In a car, useful energy output is in the form of ______ energy. A) Radiant B) Chemical C) Thermal or heat D) Mechanical
D) Mechanical
Worldwide, we expect the use of which energy resource to decrease over the next 20 years? A) Nuclear B) Coal C) Hydroelectric D) None of the above
D) None of the above
What is doubling time? A) A measure of radioactive decay B) Time it takes for a radioactive sample to decrease to half the original mass C) Radioactivity D) Time during which the initial quantity increases by a factor of two
D) Time during which the initial quantity increases by a factor of two
Which of the following is not a unit of energy? A) BTUs B) Joules C) Calories D) Watts
D) Watts
Which United States industry is a heavy energy user? A) Chemical products B) Oil refining C) Paper making D) Metal refining E) Each of these industries is a heavy energy user
E) Each of these industries is a heavy energy user
90% of home heating in this country uses _______ or _______ as the energy sources. A) Fuel oil and propane B) Natural gas and propane C) Natural gas and fuel oil D) Coal and fuel oil E) Natural gas and electricity
E) Natural gas and electricity
major contributor to coal
Electricity
what is natural gas measured in?
cubic feet
"My backyard solar collectors produce 350 kWh of electricity in one hour." Am I talking about energy or power? A) Energy B) Power C) Neither D) Both
d) both
"My backyard solar collectors produce 350 kWh of electricity." Am I talking about energy or power? A) Energy B) Power C) Neither D) Both
d) both
what unit is energy
joules
how is electrical energy measured
kilowatts
what are coal reserves measured in?
metric tons
what do we use to heat and cool things
natural gas mostly
what unit is electric power
watts
