What are the two main types of mist systems?
What will be an ideal response?
The first type of mist system is the timed system. A solenoid is wired into the irrigation lines to control the flow of water through the lines. An electrical current to the solenoid
is controlled through a timer. The water goes on for a certain amount of time, every so
often. The second type uses a mechanical leaf. A piece of wire is attached to the electrical
device. When the mechanical leaf is wet, the weight of the water on the screen tilts the
leaf down, which trips the solenoid and shuts off the water. As the mechanical leaf dries
out, it becomes lighter. When this happens, it tilts up, which trips the solenoid to let
water through. The water makes the mechanical leaf heavy again, and it turns the
solenoid off.
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La letra I en la Figura 1 señala _____.
a. el puente macizo
b. el soporte de la vigueta
c. el extremo de vigueta
d. la vigueta de contorno
Cuando dos conductores ingresan a una caja, se empalman y luego salen, se cuentan como _____ conductor(es).
a. 1 b. 2 c. 3 d. 4
Which of these tools is used for checking a diesel injector nozzle for proper spray pattern?
A) Injector test B) Scan tool C) Pattern tester D) Pop tester
Which type of hybrid is capable of propelling the vehicle by just using the electric motor?
A) Medium hybrid B) Mild hybrid C) BAS type D) Strong (full) hybrid