An antenna array is one that has more than one element or component. What is the name of the array if one or more of the elements is not electrically connected?
A. Parasitic
B. Driven
C. Collinear
D. Broadside
A
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An advantage of the synchronous motor equipped with a brushless exciter is that ____.
a. field control and excitation are provided by a static system b. brush sparking is produced c. field excitation is manually removed whenever the motor is out of step d. manual resynchronization can be achieved whenever it is practical
A series of sheaves stacked in a support frame with a hook attached to the bottom is called a _____.
a. sheave stack b. load block c. boom sheave d. boom pendant
New supervisors are generally promoted on the basis of _____.
a. good training b. personal ability to get the job done c. understanding complex specifications d. consistently meeting safety standards
Nematodes live in the soil and swim in soil water to move from plant to plant
Indicate whether the statement is true or false