How many independent windings arc in an LVDT 1 2 3 4 What is

How many independent windings arc in an LVDT? 1 2 3 4 What is the sensitive axis of this accelerometer? A B Both It depends on the installation What does FFT of acceleration vs time signal give? A more clear signal A signal with only the main frequency The main frequencies in the signal All of the above What is the purpose of tone measurement? To remove the aliased frequencies To find the main frequencies To find the fundamental frequency To find the peak amplitude Average +/- three standard deviations covers how much of the measured data? 68 percentage 95 percentage 99 percentage 100 percentage RMS or squareroot mean square is Always positive Is less than the peak Is an effective amplitude for AC signals All of the above For linear regression which one is the measure of goodness of fit? Slope Intercept R^2 All of the above What number is this Vernier showing? 3.70 3 24 3.25 3.50

Solution

39.a

40.c

41.d

42.b

43.c

44.d

45.b

46.c