Identify two methods the amount of energy required by tank type water heaters for heating water, and the resulting cost, can be reduced without replacing the unit.
What will be an ideal response?
Raise the temperature of the incoming cold water so that less energy is required to heat it.
Lower the required hot water temperature.
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If the objective of pruning is to remove diseased portions of the plant, then the cut should be made through ____________________ wood
Fill in the blank(s) with correct word
Which of the following statements about the installation of a ground rod is correct?
A. Install vertically if practicable, then at not more than a 45-degree angle if not practicable to install vertically, then in a ditch at least 21?2 ft (750 mm) deep if not practicable to install at not more than a 45-degree angle. B. In dry or arid regions, it is required to install rods that are longer than 8 ft to reach permanent moisture level. C. First measure the resistance of the first ground rod, and install additional rods until the resistance of the group is 25 ohms or less. D. It is permitted to install the rod vertically, at not more than a 45-degree angle or in a ditch at least 21?2 ft (750 mm) deep, at the installer’s option.
The most common pathogens are known as viruses
Indicate whether the statement is true or false
Go online and fi nd out how long your immunity to the diseases whooping cough, tetanus, and diphtheria lasts when you are vaccinated with a Diphtheria and Tetanus Toxoids and Acellular Pertussis (DTaP) vaccine.
What will be an ideal response?