Journeyman Electrician Practice Test 27

Question 1: How many maximum number of No 8 conductors that a (4 × 1/2) square metal box can enclose as per NEC 2011?

• 7
• 4
• 8
• 9

NEC Reference: NEC 314.16(B)

Question 2: What is the minimum free space required for No 12 AWG conductor with in the metal box?

• 2.25
• 2.5
• 2
• 1.75

NEC Reference: NEC 314.16(B)

Question 3: <span style="font-size: 14pt;">The total maximum bend of a FMC  between two pull points is which of the following?</span>

• 90 degrees
• 240 degrees
• 360 degrees
• 180 degrees

NEC Reference: NEC 348.26

Question 4: <span style="font-size: 14pt;">A single phase motor 5 HP , 230 volts motor has a full load current rating is 32 amperes, What is the full load conductor size that can be used?</span>

• No 8 THWN
• No 6 THWN
• No 10 THWN
• No 12 THWN

NEC Reference: NEC 430.22

Question 5: The grounded conductor terminal shall terminate with in the panel board in an individual terminal.

• True
• False

NEC Reference: NEC 408.41

Question 6: <span style="font-size: 14pt;">Which of the following is the length of the 120 volt flexible cord that  supplies a room air-conditioner?</span>

• 10 ft
• 6 ft
• 8 ft
• 9 ft

NEC Reference: NEC 440.64

Question 7: Amusement rides or carnival rides cannot be located less than .......................... in any direction from over head lines

• 20 feet
• 15 feet
• 12 feet
• 8 feet

NEC Reference: NEC 525.5

Question 8: If the temperature of an conducting material increases, then the resistance of the conducting material ...............................

• Increases
• Decreases
• Remains Constant

Question 9: Which of the following is the minimum service size per mobile home in a mobile park?

• 20000 volt-amperes
• 16000 volt-amperes
• 10000 volt-amperes
• 18000 volt-amperes

NEC Reference: NEC 550.31(1)

Question 10: When the supply frequency decreases the inductive reactance will ......................

• Decrease
• Increase
• Remains constant