The three classes of magnets are natural, artificial, and electromagnets.
Answer the following statement true (T) or false (F)
True
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The water table is _____.
a. a document identifying all water sources on the job site b. a sump where groundwater is collected for pumping c. the elevation at which groundwater is encountered d. an aid to calculating the water percentage in concrete
The two main electrical parts of a contactor are:
A) The contacts for L1 and L2. B) The input module and the output module. C) The armature and the frame. D) The coil and the switches or contacts.
A tire with lower than specified inflation pressure could lead to what condition?
A) Increased chances of roadside faults or accidents B) Reduced fuel economy C) Reduced tire life D) All of the above
________ is the outer glass layer of fiber-optic cable that surrounds the core and keeps light in the core
Fill in the blank(s) with correct word