The three types of datums are primary, secondary, and ____________________.
Fill in the blank(s) with the appropriate word(s).
tertiary
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Answer the following statement(s) true (T) or false (F)
1. Plug-in relays are designed for multiple switching applications at or above 240 V. 2. The normal state of a switch shows the contact configuration when the device is being acted upon by an external force. 3. Standards have been developed that specify certain colors in push-button switch operators for particular functions. For example, in the machine tool industry, green means “Start Motors, Cycle Start, Initiate Motion.” 4. Multiple contacts may be connected to a single selector switch (SSW). 5. The 120 VAC circuit is normally protected by a single fuse or circuit breaker.
____ is a device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when current to ground exceeds the values established for a Class A device.
a. GFCS b. GFCA c. GFCI d. GFIQ
Diesel engines can be run on _______________ oil if the temperature is not too cold
Fill in the blank(s) with the appropriate word(s).Uranium mill tailings are residues left over after natural ore extract is processed to produce uranium and thorium
Indicate whether the statement is true or false