Multiple Choice
During World War II, signal lights were used to send Morse code messages between ships. A sailor would open and close a shutter over a light source to send "dots" and "dashes" of lightto another ship. The sailor performed the function of which component of a communication system?
A) decoder
B) destination
C) encoder
D) receiver
Correct Answer:

Verified
Correct Answer:
Verified
Q83: A homeowner wants to convert her basement
Q84: Since the introduction of the cellular phone,
Q85: Which of the following objects is a
Q86: A builder installs a radiant barrier on
Q87: Sarah presented an idea for recycling used
Q88: Communication satellites have which of the following
Q89: Which of the following devices uses a
Q91: How many views are usually necessary in
Q92: A contractor needs to choose a low-density
Q93: Which of the following types of lifting