Which of the following penetrators should be used for testing thin brass?
A) "A" Brale B) "C" Brale
C) "N" Brale D) One sixteenth inch ball penetrator
D
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Answer the following statement(s) true (T) or false (F)
1. When a DC motor starts, the generated counter emf across the armature is low. 2. A field accelerating relay is used with starters to control low-cost speed motors. 3. A field failure relay is a single-pole control relay. 4. Time limit acceleration has the disadvantage that the resistors might remain in the circuit and could burn out. 5. Time limit controllers can drive pumps, fans, and compressors.
If a 12V car battery delivers 200A to the starter motor. The power supplied by the battery to the motor equals____ W.
Fill in the blank(s) with the appropriate word(s).
How is voltage tested if one side of the control transformer is grounded?
What will be an ideal response?
Explain when conductors smaller than 14 AWG copper are allowed to be used in residential wiring.
Fill in the blank(s) with the appropriate word(s).