Unlike the shunt-motor field in which magnetization is attained by a small current in many turns, the series-motor field carries the entire current in a ____ coil of few turns.
a. no-resistance
b. low-resistance
c. medium-resistance
d. high-resistance
b. low-resistance
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Bimetal strip-type overload relays generally permit the trip current to be adjusted to between 85% and ____% of the heater rating.
A. 95 B. 105 C. 115 D. 125
Nonstandard abbreviations on electrical prints will typically be defined on the _____.
a. one-line diagram b. legend c. title block d. revision notes
In attics not accessible by permanent stairs or ladders, Type NM cable installed across the top of floor joists within __________ of the scuttle hole must be protected by means such as guard strips.
a. 3 feet b. 5 feet c. 6 feet d. 7 feet
In acid soils you would be concerned if the redox potential was low since it could mean a deficiency of some plant nutrients such as iron and manganese
Indicate whether the statement is true or false