CNIM – Instrumentation Questions And Answers With Complete Solutions

A unit of resistance is symbolized by... correct answer: Ohms Fast Fourier transformation correct answer: The mathematical transformation f a complex waveform into simpler, more uniform waves The capacity to resolve amplitudes of 256 discrete steps would require an 8 bit A to D converter. This can be represented by... correct answer: 2^8 What is the minimum required bandpass for an EP system? correct answer: 0.1 - 5,000 Hz The gain of an amplifier, set to give an output signal of 1 volt for an input signal of 10 uV, is... correct answer: Gain=output/input Gain=1,000,000 uV/10 uV Gain=100,000 A 100 mS epoch is recorded with a 10 ms post-stimulus triggering. What best describes the resulting sweep? correct answer: A 100 ms sweep starting 10 ms after the stimulus. SSEP recordings typically require a bandpass of... correct answer: 30 Hz to 3000 Hz To accurately represent the amplitude of an EP waveform, a match must be made between the... correct answer: Signal size and the vertical capacity of the digitizer In selecting the horizontal parameters of analysis, the... correct answer: Sampling rate should be at least two times greater than the highest frequency of in the signal. The assumption that reponses of excessive amplitude are likely to contain artifact forms the basis for... correct answer: Artifact rejection In a differential amplifier used for IONM, the common mode rejection of in phase signals is typically... correct answer: 10000