Trade Math and Measurements Flashcards
6 cards from real EIAT and NEIEP Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Trade Math and Measurements flashcards as text
A conduit run requires bends at 22.5°, 45°, and 90°. What is the total degrees of bend?
Answer: 157.5°
Adding the three bends: 22.5° + 45° + 90° = 157.5° total bend in the conduit run.
If a wire has a resistance of 0.5 ohms and carries 10 amperes, what is the voltage drop across the wire?
Answer: 5V
Using Ohm's Law: V = I × R = 10A × 0.5Ω = 5 volts drop across the wire.
Convert 3/4 inch to its decimal equivalent.
Answer: 0.75
3 ÷ 4 = 0.75, so 3/4 inch equals 0.75 inches in decimal form.
A room measures 12 feet × 15 feet. What is its area in square feet?
Answer: 180 sq ft
Area = length × width = 12 ft × 15 ft = 180 square feet.
What is 15% of 240?
Answer: 36
15% of 240 = 0.15 × 240 = 36.
A cable tray runs 85 feet. If conduit costs $2.40 per foot installed, what is the total material cost?
Answer: $204
85 feet × $2.40/foot = $204.00 total installed cost.
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