Exam Questions and CORRECT Answers
At current US reserves, how long will natural gas last? - CORRECT ANSWER - 86 years
Which size particulates are the most harmful to human health? - CORRECT ANSWER - 0.1
to 2.0 microns
The three main problems with fossil fuels are that they are non-renewable (fixed amount),
pollution, and climate change (TRUE or FALSE)? - CORRECT ANSWER - TRUE
As pollution increases, energy consumption increases (TRUE or FALSE)? - 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 (TRUE or FALSE)? - CORRECT ANSWER -
TRUE
What is energy? - CORRECT ANSWER - The capacity to do work
What is the form of energy contained in a dam called? - CORRECT ANSWER - Potential
energy
A BTU is defined as the amount of energy required to raise the temperature of one pound of
water by one degree CELCIUS (TRUE or FALSE)? - CORRECT ANSWER - FALSE
-it is the amount of energy required to raise the temperature by one degree FAHRENHEIT
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 -
Nuclear Fission
Oil and natural gas typically form in what environment? - CORRECT ANSWER - Marine life
preserved at the bottom of deep lakes
Which fossil fuel contains ash? - CORRECT ANSWER - Coal
How many ranks of coal are there? - CORRECT ANSWER - Four
Which coal rank has the highest heating value? - CORRECT ANSWER - Anthracite
Which is more expensive? $100/ton of coal or $3/MCF of natural gas? - CORRECT
ANSWER - -The COAL is more expensive
-100/26 = $3.85/MMBtu
-3/1 = $3/MMBtu
What is work? - CORRECT ANSWER - Force * Displacement
A power plant produced 50 MJ of useful energy and 200 MJ of wasted heat. What is the
efficiency? - CORRECT ANSWER - -Useful energy in problem/Total energy in problem
-50/250 = 0.20 = 20%
What is the main use for petroleum? - CORRECT ANSWER - Transportation
What is the main component of natural gas? - CORRECT ANSWER - Methane