Instructions:
This test has the same format as before. For problems in the longer answer
section show your work; your work will be checked as well as your answer.
For short answer questions, pick the best
answer for the multiple choice questions.
is
the topic of my (term paper, short oral presentation, lab project) (choose
one). This topic (has, has not) been approved.
1. (2) REVIEW: If a 75 ft lb of work are done by a motor in 8.0 sec, the power of the motor in hp is ? . Note: 1 hp = 550 ft lb/s.
2.
(2) REVIEW: The energy of elevation the definition of the physical quantity ? while
the energy
of
motion is the definition of the physical quantity ? .
3.
(2) REVIEW: Suppose 4 million BTU's are added to water to produce steam
in a coal-fired power plant and 1.5 million BTU's of work are done. The
first law efficiency of the power
plant
is ? %
and ? BTU's
must be rejected to the cold reservoir.
4.
(1) In a neutral atom the number of protons is equal to the number of ?
in
the ? .
5.
(1) Two isotopes of Uranium are ? and ? .
6.
(2) The number of protons in the nucleus 131I
is ? while
the
number
of neutrons is ?
7. (2) If 10,000 25Na nuclei are found in a sample, how many remain after 3 minutes if the half life is 1 minute?
8.
(2) List 2 of the 3 methods whereby a radioactive substance may enter
the
body.
9. (5) Of the three types of nuclear radiation,
(a) the type that was later found to be an electron.
(b) the type that carries a positive charge is ?
(c) the type that does damage genetically is ? .
(d) the type that requires six inches of lead to stop is called ? .
(e) the type requiring a piece of paper to stop it is ? .
10. (2) When radioactive Calcium is injected into the intestinal tract of a rat, the rat's body transports a radioactive atom in the body the same as it does if that atom were stable. Why?
11.
(2) The purpose of the water in the light water reactor is two-fold:
it ? and
it ? .
12. (1) Define "neutron moderation."
Physics 1110 - Test 3 - page 2
13.
(2) Natural background radiation is about (a) 1; (b) 10; (c) 100; (d) 1000;
(e) 10,000, millirems of radiation per year. This can be compared with
a medical X-Ray which
averages
about ? millirems.
14.
(2) In the mines of Colorado, uranium ore (natural uranium) consists of
99% ? and
slightly
less
than 1% of ? .
15.
(2) Of the approximately 105 nuclear power plants in operation in the United
States today, about 70 of them are
of the ? variety
while the remainder of them are of the ?
variety.
16. (1) The CEO of NSP would claim that the lifetime of a nuclear power plant is approximately (a) 25 years (b) 40 years (c) 75 years (d) 100 years
17. (1) A woman physicist who is given credit for discovering the three types of radioactive decay products is named ? .
18. (1) Beware living close to a nuclear power plant! There could be a nuclear explosion like an atomic bomb! (true, false)
19. (1) A "crash program" of the United States to develop a nuclear bomb during WWII was called the ? Project.
20.
(2) Of the two bombs dropped by the United States on Hiroshima and Nagasaki
during WWII,
one
used the fissionable isotope ? while
the other used the fissionable isotope ? .
21. (1) The nuclear reactor at Chernobyl was not a BWR nor a PWR but instead was a ? .
22. (1) According to the CEO of NSP, nuclear fuel (for an existing nuclear plant) is more expensive than coal. (true, false)
23.
(1) The number of neutrons in a Uranium 238 nucleus is ?
24.
(2) List two of the many major problems that went wrong at Three Mile
Island.
25.
(3) The concentration of 235U
that is used in fuel rod assemblies has been enriched to is
about ? per
cent; it becomes "spent" fuel in about ? years
upon which time the
concentration
is about ? per
cent.
26.
(1) A concern about nuclear waste is that it contains ? which
was produced by a neutron striking 238U
atoms. This particular isotope can be "readily" extracted.
27. (1) The approximate R-Value for the walls of a home is closest to: (a) .08 (b) .104 (c) 5 (d) 14 (e) 27 (f) 122
28. (1) A type of heat transfer given off by a hot object in the form of electromagnetic waves is called ? .
29. (1) A type of heat transfer through a solid without a change in shape of the solid and involves the motion of one molecule being passed on to the motion of its neighbor is called ? .
30.
(1) Which of the following has the smallest
R-value? (a) 1 in of softwood; (b) 2 in of hardwood;
(c) 1 in of styrofoam; (d) single pane
glass; (e) 1 in of stone; (f) double pane glass
Physics 1110 - Test 3 - page 3
31. (1) A type of heat transfer that results from the actual motion of the fluid material (either liquid or gas) is called ? .
B. Longer Answer Questions
1. (3) Explain what is meant by the "envelope"
of a house.
2. (6) Discuss as best you can the major
advantages of nuclear power and then the major disadvantages of nuclear
power. (Be sure to list at least four of each.)
3. (7) Draw as best you can and explain the operation of a pressurized water reactor. Be sure to include in your diagram the fuel rods, control rods, turbine and generator, and all pumps. Also point out (a) where heat is added, (b) where work is done, and (c) where heat is removed from the water.
Physics 1110 - Test 3 - page 4
4. (4) What happened at Chernobyl. What
kind of a reactor was this and how does it vary from the commercial reactors
in the United States? List a method that people could protect themselves
from the radioactive iodine that was included in the radioactive cloud
that continued to move over Scandinavia and E. Europe.
5. (4) REVIEW QUESTION: Start with a 75
ft thickness of peat and draw a diagram illustrating how the other forms
of coal can be formed. Supply thickness, BTU content, and the name of each
form.
6. (3) Illustrate by a series of diagrams
how a chain reaction could
occur using a specific fissionable isotope.
7. (3) TEXT ESSAY QUESTION: Discuss from
the viewpoint of the text "Air
to Air Heat Exchanger"
and infiltration.
Physics 1110 - Test 3 - Page 5
8. (20) TEXT QUESTIONS: Define or briefly discuss from the viewpoint of the text the following.
China Syndrome
carbon monoxide
radon
electromagnetic radiation
photovoltaic cell
geothermal
hydroelectricity
OTEC
photosynthesis
power tower