For a building located in Baltimore, Maryland with annual heating degree-days (dd) of 4654 and a heating load (heat loss) of 30,000 Btu/h and a design temperature difference of 52°F (68°F indoor and 16°F outdoor), estimate the annual energy consumption. If the building is heated with a furnace with an efficiency of 92%, how much gas is burned to keep the home at 68°F. State your assumptions.
What will be an ideal response?
Assuming a heating value of 1000 Btu/ft3 for natural gas
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Review drawing number 523854C0A and then answer the question.
The measurements in the table shown in Figure P12–6 were surveyed on a grid for a borrow pit. The first column in the table represents the grid location. “Existing Elevation” is the elevation before excavation, and “Finish Elevation” is the elevation after excavation. The grid spacing is 20?. Grid lines A–F run north and south. Draw the borrow pit grid to scale on an ANSI B size
sheet. Label the grid values and label the cut depths at each grid intersection. Calculate the total amount of excavated material in cubic yards and place the value on the drawing. What will be an ideal response?
Sheet metal screws are also known as _________
A) Machine screws B) Hardened screws C) Self tapping screws D) None of these
The microwave signal can travel a distance of 40-45 miles before it has to be regenerated
Indicate whether the statement is true or false