Which of the following is a characteristic that helps distinguish fans from blowers?
a. Fans always require more horsepower to move the same volume of air as a blower.
b. Fans are able to perform better than blowers when the resistance to airflow is high.
c. The airflow is normally parallel to the shaft of a blower.
d. The airflow is normally parallel to the shaft of a fan.
d. The airflow is normally parallel to the shaft of a fan.
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A service facility wants to survey customers. What is TRUE?
A. Giving it to the customer to fill out and put in a lock box is not acceptable B. A survey will not use “yes/no” questions C. A service manager will monitor surveys for low scores D. Surveys are not used as the means to calculate CSI scores
A DLEC is similar to a CLEC except that the DLEC offers only data services in the local telephone network
Indicate whether the statement is true or false
Areas of actively dividing cells are called:
a. epidermis c. ground tissue b. conducting tissue d. meristems
Energy is greatest at which wavelengths?
a. short c. long b. medium d. Energy is the same at all wavelengths.