Penn foster exam 603400 electric heating

Questions 1 to 20: Select the best answer to each question. 

1. Which of the following types of heaters uses a special glass sheet with a metallic backing that serves as a heating element?
A. Vertical discharge unit heater
B. Solar panel-skylight
C. Radiant-glass wall-mounted panel heater
D. Ceiling-mounted cable radiant heater

2. What is the TD for an outdoor design temperature of 20 degrees F and an indoor design temperature of 75 degrees F?
A. 35
B. 45
C. 55
D. 95

3. Which of the following is not a type of heat loss from a building?
A. Radiation
B. Convection
C. Circulation
D. Conduction

4. A circuit with a resistance of 25 ohms is carrying a current of 2 A. How much heat, in watts, is developed?
A. 50
B. 100
C. 450
D. 1250

5. Using the degree day method, calculate the annual kWh use in Springfield, Illinois, with a heat loss of 12 kW, and an indoor design temperature of 70 degrees F, and assuming 24-hour per day occupancy.
A. 18,810
B. 23,512
C. 25,080
D. 34,466

6. What is not a factor that reduces the required number of kWh for heating?
A. Higher lighting levels
B. Greater use of electric equipment
C. Greater number of people occupying building
D. Greater ventilation

7. Heating units that depend upon the natural circulation of air in the space to be heated are called
A. unit ventilators.
B. heat pumps.
C. electric baseboard heaters.
D. hot-water storage heaters.

8. Balance point temperature is the
A. temperature at which point ventilation is not required.
B. temperature at which cooling is required.
C. outside temperature at which point heat loss from the building equals internal heat gain.
D. temperature at which point back-up heat comes on.

9. A very good insulator has an R value of 29. The material’s heat transfer coefficient is.
A. 0.034
B. 8.497
C. 14.5
D. 29

10. Of the following, what is true of radiant heat?
A. Lower temperature settings can be used with the same comfort level.
B. A normal thermostat can be used.
C. It is no longer considered a safe heating system.
D. It can only be used as a central system.

11. The best place to locate a thermostat is on an
A. outside wall near a window.
B. inside wall near an outside door.
C. inside wall by a baseboard radiator.
D. inside wall in a draft-free area.

12. Which of the following types of heating systems is often installed with a humidistat to improve fresh air exchange?
A. Radiant ceiling cable
B. Panel heaters
C. Hydronic heating system
D. Resistance baseboard

13. The amount of time it takes for one Btu to flow across one square foot of surface when there is a 1 degree F temperature difference from one side of the material to the other is known as
A. the insulating factor.
B. a material’s R-value.
C. thermal capacity.
D. internal heat gain.

14. The edges of the concrete slab in underfloor thermal-storage systems are insulated to
A. block heat from getting into the building.
B. prevent heat loss through soil to the outside.
C. support the weight of the concrete slab.
D. prevent water from entering the building.

15. What is the internal heat gain, in kW, from a factory with 20 kW of lighting (surface-mounted), 10 kW of running motors, and 10 people doing light benchwork?
A. 17.8
B. 20
C. 20.8
D. 23.8

16. What is a common heating system for school gymnasiums?
A. Unit ventilators
B. Electric baseboard
C. Underfloor thermal storage
D. Ceramic heaters

17. When a low-voltage thermostat with a thermal relay calls for heat, which of the following best describes what happens?
A. Voltage is applied across the relay heater, causing the contacts to close.
B. Voltage is applied across the relay heater, causing the contacts to open.
C. The mercury switch closes.
D. The pilot valve operates.

18. What is the best electric system for a residential building where cost is the primary concern, and air circulation is important?
A. Heat pump
B. Baseboard
C. Central warm-air furnace
D. Radiant glass panels

19. Which of the following controls can automatically reduce heating levels when the building is unoccupied for long periods of time and heat isn’t needed?
A. Damper control
B. Sensing element
C. Thermostat with a bimetallic element
D. Program clock

20. Which of these choices is the most expensive electric system to operate?
A. Baseboard
B. Program clock
C. Heat pump
D. Radiant ceiling

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency