What are two goals that can be accomplished by installing multiple water heaters?
What will be an ideal response?
ANSWER: 1. Permit the use of less costly, high-production quantity heater appliances.
2. Allow for the use of compact equipment.
3. Permit stages firing during operation.
4. Provide redundancy in case of failure.
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Vacuum is best defined as any pressure greater than atmospheric pressure.
Answer the following statement true (T) or false (F)
Stall barns require less labor to fasten and release cows than other types of barns
Indicate whether the statement is true or false.
The subsequent problems deal with the circuit below where:R1=5k?, R2=10k?, R3=5k?, R4=10k?, R5=10k?, V1=5V, and V2=10V.
What is the current (I) through resistor R2 given the direction shown?
A. 1/2 mA B. ?1/2 mA C. ?1/3 mA D. 1/2 A E. 1/3 A
Which product often has a colorant added to provide evidence that the product was applied?
a. Pipe dope b. Pipe cleaner c. Solvent cement d. Solvent cement primer