How are control transformers protected?
What will be an ideal response?
Control transformers are generally protected by fuses or circuit breakers. Protection can be placed on the primary or secondary side of the transformer, and some industries prefer protection on both sides.
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Two voltages v? and v? appear in series so that their sum is v = v? + v?. If V and v? = 12cos(50t + 30?) V. Find v.
What will be an ideal response?
Technician A says that trailing arms include any arm where the supported member trails the arm. Technician B says that trailing arms may also be called control arms on some vehicles. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The greatest advantage of the carburizing process is that:
A) Low carbon steels can be made very hard on the surface only, while the core remains soft and tough B) A case hardened part can remain as hard as Rc60 all the way through without the need for tempering and still be just as hard as a similar tempered part C) Surface hardening can be done on any ferrous metal that contains sufficient carbon. Induction heating and flame hardening are two methods used. Lathe ways and gears are examples D) It makes possible the hardening of thicker sections completely through while using an oil quench to avoid distortion
If a resilient-mounted motor develops a short to the frame, the technician can simply cut the ground strap wire as a permanent repair.
Answer the following statement true (T) or false (F)