Indoor Temperature Control Quiz
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Depending on the outside temperature and the heating habits of residents, the heating requirements of rooms, apartments and entire buildings are constantly changing. Radiator thermostats and room temperature controller systems compensate for these fluctuations. Know how Indoor temperature controlling works in this Indoor temperature control quiz
- 1.The benefits of electric baseboard heating are that _________.
- A.
Each room can be controlled individually
- B.
They are inexpensive to install
- C.
They operate on a 24-V power supply
- D.
Both a and b
- 2.What would happen if the fan on an electric unit heater burned out?
- A.
The heater would remain energized until the fusible link melts.
- B.
The interlock switch would be de-energize the electric heater.
- C.
The unit will still heat the area, but it would take longer to do so.
- D.
Both a and b are possible.
- 3.Technician "A" says that a fusible link can be jumped out temporarily to allow the customer to get heat until the next business day. Technician "B" says that if the fuses keep on blowing on an electric duct heater, the fan may be defective. Which of the following statements is correct?
- A.
Technician "A" is correct. Technician "B" is correct.
- B.
Technician "A" is correct. Technician "B" is incorrect.
- C.
Technician "A" is incorrect. Technician "B" is correct.
- D.
Technician "A" is incorrect. Technician "B" is incorrect.
- 4.If a duct-mounted electric heater is to be installed and it is discovered that the heater is too long to fit inside the duct (the duct is 10 inches high and 14 inches wide and the heater is 9½ inches high and 18 inches long), what can the technician do to properly complete the installation?
- A.
Install the heater at an angle.
- B.
Cut a slot in the duct work and allow the heater to protrude 4 inches out of the duct.
- C.
Return the heater to the supply house and obtain the correct size heater.
- D.
Cut the ends of the coils off the heater and increase the fan speed.
- 5.The resistance wire used in electric heating elements is usually _________.
- A.
Copper
- B.
Nickel steel
- C.
Nickel chromium
- D.
Aluminum
- 6.Radiant heat is transferred by _________.
- A.
Ultraviolet rays
- B.
Infrared rays
- C.
Ionization
- D.
Refraction
- 7.Electric baseboard heaters are classified as _________.
- A.
Natural draft convectors
- B.
Forced draft convectors
- C.
Forced draft conductors
- D.
Radiant heaters
- 8.Quartz and glass panel electric units are classified as _________.
- A.
Natural draft convectors
- B.
Forced draft convectors
- C.
Forced draft conductors
- D.
Radiant heaters
- 9.An electric heating unit in a duct system is classified as a _________.
- A.
Natural draft convector
- B.
Forced draft convector
- C.
Forced draft conductor
- D.
Radiant heater
- 10.A 10 Kw heating element, operating on rated 240 V, will have a Btu/h output of _________.
- A.
29,319
- B.
31,062
- C.
34,130
- D.
35,875
- 11.The limit switch is used on the electric element assembly to _________.
- A.
Start the unit if the thermostat malfunctions
- B.
Ensure that the fan stops when the unit cools down
- C.
Start the unit prematurely on a cold day
- D.
Open the circuit to the element if the furnace overheats
- 12.A house is built on property whose soil is rich in uranium. The occupants of the house may _________.
- A.
Be exposed to radon gas
- B.
Be more susceptible to lung cancer
- C.
Smell the pungent odor of the radon
- D.
Both a and b
- 13.The steps to aggressively controlling the contamination of indoor air would involve _________.
- A.
Locating and eliminating the source of contamination
- B.
Providing adequate ventilation
- C.
Providing methods for cleaning the air
- D.
All of the above
- 14.Electronic air cleaners generally have _________.
- A.
Ionizing sections
- B.
Charcoal filters
- C.
Pre-filters
- D.
All of the above
- 15.An extended surface filter (pleated type) _________.
- A.
Does not clog up as quickly as a standard filter
- B.
Is able to remove more dirt since the surface area is larger
- C.
Costs less than a standard filter
- D.
Both a and b
- 16.One of the most common substances that is used as an absorber is _________.
- A.
Charcoal
- B.
Silica gel
- C.
Fiberglass
- D.
Foam rubber
- 17.Humidification generally relates to the process of causing water to _________ into the air.
- A.
Condense
- B.
Evaporate
- C.
Be ionized
- D.
Be filtered
- 18.The controller for a humidifier, a humidistat, has a power element that is _________ sensitive.
- A.
Moisture
- B.
Light
- C.
Infrared
- D.
Temperature
- 19.Atomizing humidifiers discharge _________ into the air.
- A.
CO2
- B.
Electronic ions
- C.
Tri-valent oxygen
- D.
Tiny water droplets
- 20.In evaluating an air distribution system, the terminal units called the _________ are an important factor.
- A.
Electric baseboard and radiators
- B.
Evaporators and condenser
- C.
Registers and grills
- D.
Blower and damper
- 21.When adding a summer cooling system to an existing heating system, frequently a _________ must be added to the control circuit.
- A.
Thermocouple and limit switch
- B.
Glow coil and static pressure disc
- C.
Transformer and fan relay
- D.
Stack switch and CAD cell
- 22.When designing an all-weather system, the air distrubution system is designed around _________.
- A.
The cooling requirement
- B.
The heating requirement
- C.
Either heating or cooling requirements
- D.
Both heating and cooling requirements
- 23.Package or self-contained all-weather units are not normally made for electric air conditioning and _________.
- A.
Natural gas heat
- B.
Electric heat
- C.
LP gas heat
- D.
Oil heat
- 24.The heat anticipator in a thermostat is often a(n) _________ type resistor.
- A.
Ceramic block
- B.
Carbon block
- C.
Adjustable thermistor
- D.
Adjustable wire wound
- 25.The cooling anticipator in a thermostat is a(n) _________ type resistor.
- A.
Combination
- B.
Fixed
- C.
Adjustable thermistor
- D.
Adjustable wire wound
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