Las condiciones de servicio habituales de la NEMA incluyen una variación de frecuencia de no más de _____ de la frecuencia nominal.
a. 0.01
b. 0.05
c. 0.15
d. 0.2
b. 0.05
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During welding, one or more of the three types of light may be present.
Answer the following statement true (T) or false (F)
When an empty cylinder has been removed from the workstation and stored, it must be marked MT (or the acceptable site notation for indicating an empty cylinder) near its _____.
a. top b. side c. bottom d. lower third
Technician A says that a common cause of top end clatter in a diesel engine is loose set cylinder valves. Technician B says that loose set valves are subject to lower shock loads on opening and closing because they travel less distance. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
A lowpass digital filter is designed first using the impulse-invariant technique and then using the step-invariant technique. Which one is guaranteed to have the correct response magnitude at zero frequency and why?
What will be an ideal response?