IEC 1ST YEAR EXAM WITH 50 QUESTIONS AND
100% VERIFIED CORRECT ANSWERS
[ALREADY GRADED A+] ||IEC FIRST YEAR
EXAM STUDY EXAM LATEST ||GUARANTEED
PASS [BRAND NEW!!
Question 1: If a Code rule is permitted but not mandatory it includes the words
___. I. shall not be required II. not necessary III. shall be permitted a. III only b. I,
II, or III c. II only d. I or III only e. I only - ANSWER ✔✔- Answer: d. I or III
only Explanation: The correct wording indicating a permitted but not mandatory
rule is "shall not be required" or "shall be permitted". NEC Citation(s): 2023 NEC:
90.5(B)
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Question 2: A heating element is rated to operate at 120 volts. A 3 KW element
draws ___ amps at 120 volts. a. 4.8 b. 25 c. 31 d. 5 e. 40 - ANSWER ✔✔- Answer:
b. 25 Calculation: I = Ea ÷ R where R = (ENP)2 ÷ PNP = (120)2 ÷ 3,000 = 4.8
ohms I = Ea ÷ R = 120 ÷ 4.8 = 25 amps
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Question 3: Electrical contractor number one has 42 journeyman electricians, 19
apprentice electricians, and 18 laborers. Electrical contractor number two has 95
journeyman electricians, 28 apprentice electricians, and 21 laborers. How many
more journeyman electricians, apprentice electricians and laborers does electrical
contractor two have? a. 52, 8, 4 b. 53, 9, 3 c. 52, 9, 4 d. 53, 9, 2 - ANSWER ✔✔-
Answer: b. 53, 9, 3
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, Question 4: An installation was estimated to require 2380 feet of 12-2/G. The job
really required 3497 feet of 12-2/G. How many more feet did the job actually
need? a. 1117 b. 1217 c. 1017 d. 1007 - ANSWER ✔✔- Answer: a. 1117
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Question 5: If the gas tank of the company truck holds 22.25 gallons and the truck
averages 15.75 miles per gallon, the truck can travel ___ miles on half a tank of
gas. a. 165.21875 b. 180.22782 c. 170.22782 d. 175.21875 - ANSWER ✔✔-
Answer: d. 175.21875
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q 6: An electrical contractor purchased the following materials for a certain job:
2500 feet of 12/2G Romex® for $321.30; 6-ceiling fans for $42.17 each; and 150
feet of ½ EMT conduit for $.17 per foot. What is the total cost of these items? a.
$499.82 b. $598.81 c. $599.82 d. $600.83 - ANSWER ✔✔- Answer: c. $599.82
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Question 7: An electrician earns $14.50 per hour. He worked the following hours:
first day: 53/4 hours, second day: 41/2 hours, third day: 71/4 hours, fourth day:
31/2 hours, and the fifth day: 62/3 hours. The electrician earned $___ in the five
days. a. $362.50 b. $401.17 c. $391.50 d. $396.33 - ANSWER ✔✔- Answer: b.
$401.17 Calculation: 27 2/3 hr × $14.50/hr = $401.17
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Question 8: The tool shown at the right at is a ___. (Refers to an image not
provided) a. step-drill bit (Unibit®) c. wood (paddle) bit e. hole saw b. masonry
drill bit d. high-speed drill bit - ANSWER ✔✔- Answer: a. step-drill bit (Unibit®)
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, Question 9: Luminaires weighing more than ___ pounds are required to be
supported independently of the outlet box. a. 25 b. 15 c. 70 d. 50 e. 35 - ANSWER
✔✔- Answer: d. 50 NEC Citation(s): 2023 NEC: 314.27(A)(2)
what is this called - ANSWER ✔✔- Answer: e. hex jead lag screw
Question 11: -10°F = ___°C
a. -23 b. 10 c. 6 d. 22 e. -12 - ANSWER ✔✔- Answer: a. -23
Calculation: [-10 - 32] × (5 ÷ 9) = -23.3 ≈ -23°C
Question 12: An electrician has to set four circular transformers on a concrete pad.
Two of the transformers are 23 inches in diameter, one transformer is 28 inches in
diameter, and one transformer is 18 inches in diameter. The total area these
transformers will cover is ___ square inches. a. 2,166 b. 3,402 c. 1,286 d. 1,701 e.
2,571 - ANSWER ✔✔- Answer: d. 1,701
Calculation: r1 = r2 = 11.5" r3 = 14" r4 = 9" [2 x (π x r²)] + [1 x (π x r²)] + [1 x (π
x r²)] = [2 x (415.48)] + [1 x (615.75)] + [1 x (254.47)] = 1701 sq. in.
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Question 13: The volume of the tank shown 40ftD x 30 ftH is ___ cubic yards. a.
150,796 b. 1,396 c. 5,585 d. 37,699 e. 2,618 - ANSWER ✔✔- Answer: b. 1,396
Calculation: [π × (40 ft. ÷ 2)² × 30 ft.] = 1396 cu. yd.
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Question 14: What is the resistance of a hair dryer if the nameplate supplies the
following information: 1750 watts 120 volts a. 159.7524 b. 14.5833 c. 3.8188 d.
458.2576 e. 8.229 - ANSWER ✔✔- Answer: e. 8.229 Calculation: R = [Erated]² ÷
Prated = 120² ÷ 1750 = 8.229 ohms
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100% VERIFIED CORRECT ANSWERS
[ALREADY GRADED A+] ||IEC FIRST YEAR
EXAM STUDY EXAM LATEST ||GUARANTEED
PASS [BRAND NEW!!
Question 1: If a Code rule is permitted but not mandatory it includes the words
___. I. shall not be required II. not necessary III. shall be permitted a. III only b. I,
II, or III c. II only d. I or III only e. I only - ANSWER ✔✔- Answer: d. I or III
only Explanation: The correct wording indicating a permitted but not mandatory
rule is "shall not be required" or "shall be permitted". NEC Citation(s): 2023 NEC:
90.5(B)
--
Question 2: A heating element is rated to operate at 120 volts. A 3 KW element
draws ___ amps at 120 volts. a. 4.8 b. 25 c. 31 d. 5 e. 40 - ANSWER ✔✔- Answer:
b. 25 Calculation: I = Ea ÷ R where R = (ENP)2 ÷ PNP = (120)2 ÷ 3,000 = 4.8
ohms I = Ea ÷ R = 120 ÷ 4.8 = 25 amps
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Question 3: Electrical contractor number one has 42 journeyman electricians, 19
apprentice electricians, and 18 laborers. Electrical contractor number two has 95
journeyman electricians, 28 apprentice electricians, and 21 laborers. How many
more journeyman electricians, apprentice electricians and laborers does electrical
contractor two have? a. 52, 8, 4 b. 53, 9, 3 c. 52, 9, 4 d. 53, 9, 2 - ANSWER ✔✔-
Answer: b. 53, 9, 3
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, Question 4: An installation was estimated to require 2380 feet of 12-2/G. The job
really required 3497 feet of 12-2/G. How many more feet did the job actually
need? a. 1117 b. 1217 c. 1017 d. 1007 - ANSWER ✔✔- Answer: a. 1117
--
Question 5: If the gas tank of the company truck holds 22.25 gallons and the truck
averages 15.75 miles per gallon, the truck can travel ___ miles on half a tank of
gas. a. 165.21875 b. 180.22782 c. 170.22782 d. 175.21875 - ANSWER ✔✔-
Answer: d. 175.21875
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q 6: An electrical contractor purchased the following materials for a certain job:
2500 feet of 12/2G Romex® for $321.30; 6-ceiling fans for $42.17 each; and 150
feet of ½ EMT conduit for $.17 per foot. What is the total cost of these items? a.
$499.82 b. $598.81 c. $599.82 d. $600.83 - ANSWER ✔✔- Answer: c. $599.82
--
Question 7: An electrician earns $14.50 per hour. He worked the following hours:
first day: 53/4 hours, second day: 41/2 hours, third day: 71/4 hours, fourth day:
31/2 hours, and the fifth day: 62/3 hours. The electrician earned $___ in the five
days. a. $362.50 b. $401.17 c. $391.50 d. $396.33 - ANSWER ✔✔- Answer: b.
$401.17 Calculation: 27 2/3 hr × $14.50/hr = $401.17
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Question 8: The tool shown at the right at is a ___. (Refers to an image not
provided) a. step-drill bit (Unibit®) c. wood (paddle) bit e. hole saw b. masonry
drill bit d. high-speed drill bit - ANSWER ✔✔- Answer: a. step-drill bit (Unibit®)
--
2|Page
, Question 9: Luminaires weighing more than ___ pounds are required to be
supported independently of the outlet box. a. 25 b. 15 c. 70 d. 50 e. 35 - ANSWER
✔✔- Answer: d. 50 NEC Citation(s): 2023 NEC: 314.27(A)(2)
what is this called - ANSWER ✔✔- Answer: e. hex jead lag screw
Question 11: -10°F = ___°C
a. -23 b. 10 c. 6 d. 22 e. -12 - ANSWER ✔✔- Answer: a. -23
Calculation: [-10 - 32] × (5 ÷ 9) = -23.3 ≈ -23°C
Question 12: An electrician has to set four circular transformers on a concrete pad.
Two of the transformers are 23 inches in diameter, one transformer is 28 inches in
diameter, and one transformer is 18 inches in diameter. The total area these
transformers will cover is ___ square inches. a. 2,166 b. 3,402 c. 1,286 d. 1,701 e.
2,571 - ANSWER ✔✔- Answer: d. 1,701
Calculation: r1 = r2 = 11.5" r3 = 14" r4 = 9" [2 x (π x r²)] + [1 x (π x r²)] + [1 x (π
x r²)] = [2 x (415.48)] + [1 x (615.75)] + [1 x (254.47)] = 1701 sq. in.
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Question 13: The volume of the tank shown 40ftD x 30 ftH is ___ cubic yards. a.
150,796 b. 1,396 c. 5,585 d. 37,699 e. 2,618 - ANSWER ✔✔- Answer: b. 1,396
Calculation: [π × (40 ft. ÷ 2)² × 30 ft.] = 1396 cu. yd.
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Question 14: What is the resistance of a hair dryer if the nameplate supplies the
following information: 1750 watts 120 volts a. 159.7524 b. 14.5833 c. 3.8188 d.
458.2576 e. 8.229 - ANSWER ✔✔- Answer: e. 8.229 Calculation: R = [Erated]² ÷
Prated = 120² ÷ 1750 = 8.229 ohms
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