Why are single-element fuses particularly suited for the protection of circuit breakers with low interrupting ratings?
a. They have a high speed of response to overcurrents.
b. They have a low speed of response to short circuit currents.
c. They can be applied in circuits subject to temporary motor overload.
d. They can be used in circuits other than motor branch circuits and feeders, such as lighting circuits.
a. They have a high speed of response to overcurrents.
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Technician A says that the gears in a planetary gear set are in constant mesh. Technician B says that a planetary gear set has a ring gear and hypoid gears. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
El componente de la forma para pared designado con una B en la Figura 2 es _____.
a. una placa inferior
b. un tablón de estabilidad
c. una riostra
d. una zapata
Describe the following terms, pressure indicator, flow indicator, level indicator, temperature indicators.
What will be an ideal response?
What kind of switches are designed to switch higher voltages and currents?
A. standard duty B. heavy duty C. pilot duty D. regular duty