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Q:
Q:
A typical utilities section is composed of all the following except:a. Distillation systemb. Water treatment systemc. Steam generationd. Cooling tower systeme. Compressed gases
Q:
Describe the primary theory, equipment, technology, and training you have/will be exposed to at your college or university.
Q:
Surface water is defined or described as:a. Water that is drawn for industrial applications from lakes, rivers, and oceans.b. Water drawn from water wells, retention basins, city waterc. Water drawn from any source if used for industrial applications.d. Rain water collected in the plants lagoons, holding ponds, aeration basins, and retention basins.
Q:
Describe the hands-on skills process technicians are exposed to at your school. a. b. c.
Q:
The principles of water treatment include:a. Settling basin, pumps, filters, chemicals, demineralizers, plant.b. Settling basin, chemicals, filters, pumps, demineralizers, plant.c. Demineralizers, filters, settling basin, chemicals, pumps, plant.d. Filters, settling basin, chemicals, pumps, plant, demineralizers.
Q:
List the specific areas in math covered on pre-employment test. a. b. c. d. e. f. g.
Q:
In a simple “Two-Step Refrigeration system” flow moves:a. Evaporator, expansion valve, condensor, compressor.b. Condensor, compressor, evaporator, expansion valvec. Compressor, condenser, expansion valve, evaporatord. Compressor, expansion valve, condensor, evaporator
Q:
Describe how to conduct a self-directed job search. List 5 items. a. b. c. d. e.
Q:
The basic components of a refrigeration system include all the following except:a. Compressor- high pressure refrigeration gasb. Heat exchanger- cooling towerc. Receiverd. Expansion valve-low pressure refrigeration liquide. Heat exchanger (evaporator)- low pressure refrigerant gas.f. Gear box- low temperature lubricant
Q:
List three questions typically asked in an interview. a. b. c.
Q:
Polymerization is a process that:a. Creates synthetic links between molecules called monomers.b. Combines chemical compounds.c. Creates long chain molecules.d. All of the above.
Q:
List the key elements of a resume in order.
Q:
A classifier is:a. A vibrating tube with screens for pellet segregation.b. A filtering device that removes dissolved substances from a fluid.c. A device designed to safely burn hydrocarbons.d. A solids feeder composed of single and multiple screws.
Q:
List the key elements of a cover letter.
Q:
A demineralizer is:a. A vibrating tube with screens for pellet segregation.b. A filtering device that removes dissolved substances from a fluid.c. A device designed to safely burn hydrocarbons.d. A solids feeder composed of single and multiple screws.
Q:
The most common pre-employment test used for process technicians is a. the California math test b. the Bennett Mechanical S & T test. c. the chemical comprehension S & T test. d. the block counting test.
Q:
List three examples of pressure relief equipment.a. __________________________________b. __________________________________c. __________________________________
Q:
A typical job search for a process technician requires a. 1-2 months b. 3-4 months c. 4-6 months d. 6-12 months
Q:
The basic equipment associated with a flare system includes: List Five (5).a. b. c. d. e.
Q:
True or False Work experience is more valuable than education.
Q:
The function and operation of an extruder is most closely described as:a. A complex piece of equipment used to blend, melt and extrude polymer.b. A large granules blender that uses a forming mat.c. A specially designed extrusion reactor.d. An industrial compressor used to transfer dry granules.
Q:
The cover letter is designed to a. introduce and sum up the resume b. identify special skills c. highlight education d. display work experience
Q:
Sketch a simple flare system.
Q:
The lifeblood of modern society is:
a. computer technology
b. transportation technology
c. communication systems
d. crude oil technology
Q:
True or False Multiple variations in a resume are helpful during a job search.
Q:
What is the primary purpose of a fired heater (furnace?)a. Separate the components in a mixture by boiling point by increasing temperature and pressure through three methods of heat transfer.b. To cool industrial water in chemical applicationsc. To heat up large quantities of crude oil or hydrocarbon feedstockd. To produce high, medium, and low pressure steam
Q:
What is the simple payback of a renewable energy heating system? a.
the installation cost divided by the annual operating cost savings b.
the number of years required for the investment to repay the higher initial cost using the savings it generates, relative to that of a conventional system c.
the number of years required for the annual operating cost savings to equal the installation cost d.
the installation cost divided by the difference between the installation cost of the system and a conventional system
Q:
What is the term of a loan? a.
the time period over which it must be repaid b.
the time period during which the interest rate remains constant c.
the maximum percentage the interest rate can rise, for a variable rate loan d.
the number of months elapsed until the principal and interest portions of the monthly payment are equal
Q:
What happens during the time after the simple payback point? a.
The conventional system produces a lower total cost. b.
The renewable energy system produces a lower total cost. c.
The conventional system and the renewable energy system have identical costs. d.
The conventional system becomes less reliable.
Q:
Which factor is of primary importance in deciding whether to purchase a renewable energy heating system? a.
installation cost b.
operating cost c.
desire to protect the environment d.
a variety of factors, depending on the individual
Q:
Which statement about wood as a renewable energy source is FALSE? a.
Wood is considered carbon-neutral b.
Wood is a form of biomass c.
Wood contains energy from sunlight d.
Wood is the least used renewable heating energy source in the U.S.
Q:
What is a typical temperature in the secondary combustion zone of a wood-gasification boiler? a.
500 F b.
1000 F c.
2000 F d.
4000 F
Q:
What is the most efficient operating condition for a wood-gasification boiler? a.
Small amounts of cordwood are continuously replenished. b.
Firebox full of cordwood is burned continuously. c.
Firebox full of cordwood is burned as a batch. d.
Firebox full of cordwood is burned halfway, then finished when there a is a concurrent heating load.
Q:
Smoke generation and increased creosote formation occurs when an outdoor wood-fired hydronic heater goes into stand-by mode. a.
True b.
False
Q:
Recurring expenses for operating a renewable energy heating system vary from year to year. a.
True b.
False
Q:
The same amount of chemical energy is contained in a given volume of wood, regardless of species. a.
True b.
False
Q:
The method used to determine monthly owning cost depends on how the installation will be paid for. a.
True b.
False
Q:
Outdoor wood-fired hydronic heaters have relatively high PM2.5 particulate emissions, which represent a human health concern. a.
True b.
False Indicate the answer choice that best completes the statement or answers the question.
Q:
A tax credit reduces tax liability more than a tax deduction of the same amount. a.
True b.
False
Q:
What value represents the actual amount of air supplied to the combustion process divided by the stoichiometric air requirement? a.
beta ratio b.
delta ratio c.
gamma ratio d.
lambda ratio
Q:
Federal subsidies of renewable energy in the form of tax credits greatly increased sales of solar thermal systems during the mid-1990s. a.
True b.
False
Q:
What type of water compartment is associated with nearly all outdoor wood-fired hydronic heaters? a.
unpressurized b.
pressurized c.
partially under pressure d.
under a vacuum
Q:
An increase in the cost of conventional fuel displaced by the renewable energy heat source increases the simple payback period of the renewable energy solution. a.
True b.
False Indicate the answer choice that best completes the statement or answers the question.
Q:
How is heat extracted from a natural draft wood-fired boiler? a.
mostly by release directly into the room b.
through stainless steel tubes at the upper sides and top of the combustion chamber c.
by radiation from the refractory bricks d.
through a heat exchanger positioned just beneath the combustion chamber
Q:
What factor causes the future value of an investment to differ from its present value? a.
return on investment b.
payback c.
interest rate d.
principal
Q:
Which is a primary factor in sizing a wood-gasification boiler? a.
the physical space available b.
the amount of available firewood c.
the number of firing cycles per day the owner is comfortable with d.
the availability and location of electricity at the site
Q:
What do straight lines on a simple payback curve imply? a.
The inflation of fuel cost was included. b.
The inflation of fuel cost was not included. c.
The fuel cost was not considered in the calculation. d.
The installation cost was not considered in the calculation.
Q:
For what load should a pellet-fired boiler be sized? a.
half the design load b.
60-70 percent of the design load c.
80-90 percent of the design load d.
full design load
Q:
How is total owning and operating cost used as a financial comparison tool? a.
The option with the lowest total owning and operating cost is the better financial investment. b.
The option with the lowest number of years of owning and operating cost is the better financial investment. c.
The point at which the owning and operating costs intersect when plotted on a graph is the return on investment. d.
The total owning and operating cost divided by the monthly operating cost savings is the return on investment.
Q:
What type of piping is recommended when combining a wood-fired boiler with an auxiliary boiler? a.
series b.
parallel c.
either series or parallel d.
neither series or parallel
Q:
What is annual compounding? a.
a chart showing interest rate fluctuations over the life of a loan b.
a list of varying monthly payments over the life of a loan c.
the sum of the monthly payments applied to a loan over a one year period d.
the assumption that accumulated interest is added to the principal once per year
Q:
Why is creosote dangerous? a.
It is difficult to clean up. b.
It is a product of incomplete combustion. c.
It decreases thermal efficiency. d.
It is toxic when touched.
Q:
How is return on investment calculated? a.
benefit divided by net cost b.
benefit minus net cost, divided by net cost c.
net cost minus benefit, divided by net cost d.
net cost divided by benefit
Q:
What is an example of a passive overheat protection subsystem? a.
uninterruptible power supply b.
fin-tube array positioned above the boiler c.
smart controller d.
AC powered circulator
Q:
What time frame is generally used to calculate lost opportunity cost? a.
10 years b.
the elapsed time until the loan is repaid c.
the design life of the system d.
the time duration until federal tax credits expire
Q:
What device feeds pellets into a pellet-fired boiler? a.
day hopper b.
auger system c.
burn pot d.
bag silo
Q:
What is the purpose of renewable energy tax credits or other rebates? a.
Temporarily stimulate market growth in a renewable energy sector. b.
Increase tax revenues. c.
Reduce tax revenues. d.
Immediately reduce underlying cost of the technology.
Q:
What is the function of a variable-speed setpoint circulator? a.
It protects a wood-fired or pellet-fired boiler from low inlet water temperature. b.
It protects a wood-fired or pellet-fired boiler against over-pressure conditions. c.
It senses when flue-gas condensation is occurring. d.
It allows automatic fuel dispensing into the boiler.
Q:
How is after-tax lost opportunity cost calculated? a.
total interest income earned multiplied by percentage of income retained by the owner b.
total interest income earned multiplied by income tax percentage c.
installation cost divided by annual operating cost savings d.
total cost of owning and operating a system on an annual basis
Q:
The heating capacity of a water-to-water heat pump is highly dependent on the temperatures of the source and sink fluids. a.
True b.
False
Q:
Which two issues must be examined whenever ground water is considered for use with a water-source heat pump? a.
water quantity and average water pressure b.
water quantity and water quality c.
water quality and water hardness d.
water acidity and average water pressure
Q:
In mild climates where sub-freezing temperatures occur only a few days per year, it is acceptable to operate a self-contained air-to-water heat pump with water flowing through the outdoors. a.
True b.
False
Q:
Air-to-water heat pump system designs can often be adapted for use with water-to-water heat pumps. a.
True b.
False
Q:
A wood gasification boiler is a single-stage device. a.
True b.
False
Q:
In general, the larger the temperature difference between the source media and the load media, the higher the heat pumps COP. a.
True b.
False
Q:
Buffer tank sizing depends on the acceptable temperature rise of buffer tank water during the time the heat pump is off. a.
True b.
False
Q:
The purpose of refractory bricks in a welded-steel wood fired boiler is to protect the steel from high temperatures. a.
True b.
False
Q:
For an air-to-water heat pump, COP generally increases with increasing outdoor temperature. a.
True b.
False Indicate the answer choice that best completes the statement or answers the question.
Q:
Desuperheaters transfer more than 60 percent of the total thermal energy in the hot refrigerant gas leaving the compressor to domestic hot water. a.
True b.
False Indicate the answer choice that best completes the statement or answers the question.
Q:
What is the primary purpose of thermal storage used as a buffer? a.
to provide additional space for thermal expansion of the fluid b.
to match the rate of heat production of the heat pump to the heat delivery rate from the distribution system c.
to allow diurnal operation of the heat pump d.
to prevent short-cycling of the heat pump
Q:
What type of flow allows for better heat transfer between the tube wall and the loop fluid? a.
laminar b.
turbulent c.
smooth d.
stagnant
Q:
Which type of system generally has a higher seasonal average COP when properly designed and installed? a.
air-to-water heat pump b.
geothermal heat pump c.
air-to-water and geothermal heat pumps typically have the same COPs d.
COP does not apply to geothermal heat pumps
Q:
Which factor does NOT generally influence undisturbed soil temperature? a.
depth b.
time of year c.
ground loop orientation (horizontal or vertical) d.
thermal properties of the soil
Q:
What component controls the direction of movement of a reversible heat pumps reversing valve? a.
pilot solenoid valve b.
check valve c.
auxiliary boiler valve d.
capillary tubing
Q:
What is the ground water temperature in most drilled wells? a.
about equal to the average annual outside air temperature b.
about equal to the average low summer air temperature c.
about equal to the average high winter air temperature d.
about 65 degrees F in most areas of North America
Q:
In the example at the end of the chapter comparing a geothermal heat pump installation to an air-to-water heat pump installation, which factor had the biggest influence on payback period? a.
COP b.
average outside temperature in winter c.
percent of heating load satisfied by an auxiliary heating source d.
installation cost
Q:
What performance characteristic determines whether fluid flow is laminar or turbulent? a.
coefficient of performance b.
EER c.
Reynolds number d.
Poisson number
Q:
Which component of the vapor compression refrigeration cycle significantly increases both temperature and pressure of the fluid? a.
evaporator b.
compressor c.
condenser d.
thermal expansion valve
Q:
What is the minimum flow velocity necessary to consistently carry air and low-density particles along piping oriented at an arbitrary angle? a.
2 feet per second b.
3 feet per second c.
5 feet per second d.
8 feet per second