Exam Questions and CORRECT
Answers
What is the form of energy contained in a dam called? - CORRECT ANSWER - Potential
A Btu is defined as the amount of energy required to raise the termperature of one lb of water by
one degree Celsius - CORRECT ANSWER - False
A calorie is defined as the amount of energy required to raise the termperature of one lb of water
by one degree Celsius - CORRECT ANSWER - False
As population increases, energy consumption increases - CORRECT ANSWER - True
In the past, decreasing fertility rates were associated with decreasing poverty levels - CORRECT
ANSWER - True
Human development (health, nutrition, education, housing) and a high level of energy use are
correlated - we rarely see one without the other. - CORRECT ANSWER - True
What is energy? - CORRECT ANSWER - The capacity to do work
What is work? - CORRECT ANSWER - Force*displacement
A power plant produces 50 MJ of useful energy and 100 MJ of wasted heat. What is the
Efficiency? - CORRECT ANSWER - 33%
A power plant produces 50 MJ of useful energy and 200 MJ of wasted heat. What is the
Efficiency? - CORRECT ANSWER - 20%
, What is the largest energy consumer at home? - CORRECT ANSWER - Space Heating
The process of two smaller nuclei combining into one larger nucleus - CORRECT
ANSWER - Nuclear Fusion
The process of one larger nucleus dividing into two smaller nuclei - CORRECT ANSWER -
Fission
Oil and Natural Gas typically form in what environment - CORRECT ANSWER - Marine life
preserved at the bottom of deep lakes
Which of the fossil fuels are regional commodities with regional prices? - CORRECT
ANSWER - Coal and natural gas
which fossil fuel contains ash? - CORRECT ANSWER - coal
How many ranks of coal are there? - CORRECT ANSWER -4
which coal rank has the highest heating value? - CORRECT ANSWER - anthracite
A proximate analysis shows that a certain lignite coal is 10% moisture, 30% volatiles, and 10%
ash. What is the % fixed carbon? - CORRECT ANSWER - 50%
Which is more expensive, $100/ton of coal or $3/MCF of natural gas? - CORRECT
ANSWER - The coal
What is the main use for petroleum? - CORRECT ANSWER - transportation