Answer Happy

22. We use the passive experiment in technical diagnostics in the case of: * (1 Point) In the first place despite the fact that we have the opportunity to perform active. When it degrades the operation of a machine it can be dangerous for the surrounding infrastructure In a laboratory where we have adequate control and measurement facilities. When the change of machine operating parameters will affect the performance of the technical object. 23. The imbalance effect is visible in the spectrum of the vibroacoustic signal: * (1 Point) increase in first and second harmonic amplitude in the axial direction increase in the amplitude of the first harmonic and reduction of the second in perpendicular directions increase in the amplitude of the first harmonic in the axial direction increase in the amplitude of the first harmonic in perpendicular directions