ABRET Exam part2 || With complete solutions.

Calibration is required a. at the start of the recording b. at the end of the recording c. at the start and end of the recording d. only when Sensitivity changes are made during the recording correct answers c. at the start and end of the recording Duration is measured in a. Hertz b. Millimeters c. Microvolts d. Milliseconds correct answers d. Milliseconds If the duration of a wave is .2 seconds the frequency would be? a. 1 Hz b. 2 Hz c. 5 Hz d. 10 Hz correct answers c. 5 Hz Which LF would best demonstrate focal delta activity appearing in the left fronto-temporal region? a. 5 Hz b. 3 Hz c. 1 Hz d. .3 Hz correct answers d. .3 Hz Which filter would most attenuate focal delta activity? a. LF 5 Hz b. LF .3 Hz c. HF 70 Hz d. HF 15 Hz correct answers a. LF 5 Hz A sharp wave has a duration of a. > 200 ms b. 70 -200 ms c. < 70 ms d. 20 ms correct answers b. 70 -200 ms If the duration of a wave is 400ms, what is the frequency? a. .4 Hz b. 2.5 hz c. 4 Hz d. 6.26 Hz correct answers b. 2.5 hz The _______ states that you must sample at a rate that is at least twice the frequency of the fastest waveforms you want to resolve. a. Nyquist Theorum b. A to D converter