Which of the following is the secret code used in the encryption algorithm to create cipher text and to decode (decrypt) the message?
A. Sequence
B. Signal
C. Key
D. Link
C
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What is the name given to the areas where P-type materials join N-type materials to form a diode?
a. PN junction b. Solid-state area c. NPN junction d. Gate junction
To calculate a simple Return on Investment you would use which formula?
A) R - C = ROI(Return less Cost equals Return on Investment) B) C + R = ROI ( Cost plus the Return equals Return on Investment) C) ROI / C =I ( Return on Investment divided by Income equals profit) D) None of the above
Which is the result of the twisting motion of the heated helix?
A) Activation of the emergency cut-off switch B) Contraction of the bimetallic element C) Activation of the limit control switch D) Expansion of the bimetallic element
The base of an extension ladder that is correctly set up will be:
A) Exactly 3 feet from the wall. B) 1 foot from the wall for every 4 feet in length. C) The same distance away from the wall as the height of the ladder. D) As close to vertical as possible.