Suspension cylinders could use either of these two kinds of gas:
a. Helium or oxygen
b. Helium or nitrogen
c. Nitrogen or acetylene d. Butane or propane
B
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The minimum free conductor length for making connections to wiring devices specified by the NEC® is _____.
a. 4" (100 mm) b. 6" (150 mm) c. 8" (200 mm) d. 12" (300 mm
Which of the following locations are hazardous due to the presence of combustible dust?
a. Class I locations b. Class II locations c. Class III locations d. Class IV locations
In binary systems the sign of a number is indicated by ________
A) including a sign bit along with the magnitude bits B) using a 0 (zero) bit in front of negative numbers C) inverting the bits if the number is negative D) placing a negative sign in front of the number
During a write operation, the tDH interval is called the data ________ time
Fill in the blank(s) with correct word