Practice Exam 1

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JOURNEYMAN EXAM 1 - 30 QUESTIONS - TIME LIMIT 1 HOUR 15 MINUTES

 


1.The branch circuit conductor supplying a 3/4 hp, 1Ø 115 volt motor shall have an ampacity of at least ___ .

(A) 13.3 amps   (B) 21.25 amps   (C) 20 amps   (D) 17.25 amps

 



2. How many #1 wires can you install in parallel?

(A) 8   (B) 2   (C) 4  (D) 0

 



3. What is the minimum number of 20 amp branch circuits required for a 1500 sq.ft. house?

(A) 6   (B) 4   (C) 8   (D) 2

 



4.The ampacity of a #14 THW conductor, when there are six conductors in a conduit and the temperature is 30oC, would be ____ amps.

(A) 24   (B) 20   (C) 16   (D) 18

 



5.The overcurrent protection of a #10 THW conductor, when there are not more than three conductors in a raceway, and the ambient temperature is 28oC, would be ___ amps.

(A) 20   (B) 30   (C) 18  (D) 26

 



6.What is the allowable ampacity of a #12 TW copper conductor in a raceway with an ambient temperature of 75oF?

(A)27 amps   (B) 25 amps   (C) 30 amps   (D) 32 amps
 

 


7.The demand on the service for six - 6 kW ranges in a sixplex apartment would be _____ kW.

(A) 15.48   (B) 30.66   (C) 20.96   (D) none of these
 

 


8. You are wiring a house that has 2200 square feet under the roof. The living area accounts for 2000 square feet of this space. The minimum general lighting load for this dwelling would be _____ VA.

(A) 7500   (B) 6000   (C) 5500   (D) 8600
 

 


9. A box contains the following conductors, the minimum cubic inch capacity required is ____. 4 - #14 grounded conductors 4 - #14 ungrounded conductors 4 - #12 grounded conductors 4 - #12 ungrounded conductors 4 - Clamps 8 - #12 equipment grounding conductors

(A) 20.75   (B) 42.50   (C) 55.75   (D) 38.50
 

 


10.What is the maximum size overload relay permitted for protection against overload for a 1Ø, 2 hp, 208 volt motor?

(A) 17.16 (B) 16.25 (C) 18.15 (D) none of these
 

 


11. What size dual-element fuse does the Code require for a 2 hp, 208 volt, single-phase motor?

(A) 30 amp   (B) 45 amp   (C) 20 amp   (D) 35 amp
 

 


12. The volume required for two #12 TW grounding conductors and two #12 TW conductors in a box would be ___ cubic inches.

(A) 8 (B) 5.5 (C) 6.75 (D) 6
 

THE NEXT TWO QUESTIONS (13-14) refer to the following diagram and general information.

GENERAL NOTE. Circuits 1 and 2 feed a kitchen. The loads are Plugged onto the small appliance circuits.

13. The total current in Circuit II is ___ ampere(s).

(A) 9.25   (B) 10.0   (C) 12.0   (D) 0.85
 

14. Which of the following statements can be inferred from the Circuit I diagram?

(A) Circuit I does meet the Code and will operate.
(B) Circuit I does not meet the Code.
(C) Circuit I does not meet the Code but will operate.
(D) Circuit I does meet the Code but will not operate.
 

 


15.The correction factor (C.F.) for 104oF is ____ for a 60oC insulated conductor.

(A) 0.80   (B) 0.94   (C) 0.96   (D) 0.82
 

 


16. The maximum motor-running overload protection would be___amps for a 3hp 1Ø 230V motor.

(A) 22.1   (B) 24.2   (C) 26   (D) 16
 

 


17. When sizing the service conductors for an apartment complex, the minimum demand load in kW for eight 4 kW ranges would by ___kW.

(A) 12.36   (B) 15.95   (C) 11.52   (D) None of these
 

 


18. The ampacity of a #14 THW conductor, when there are six conductors in a conduit and the temperature is 30oC, would be ___amps.

(A) 22   (B) 16   (C) 24   (D) 18
 

 


19. What is the minimum size copper equipment grounding conductor required for a 80 amp circuit breaker?

(A) #12   (B) #16   (C) #6   (D) #8
 

 


20. In a custom house, the demand load (load applied for service calculation) for a 12 kW range and a 4 kW oven is ____ kW.

(A) 12   (B) 10.5   (C) 11   (D) 14
 

 


21. How much space remains to be filled without exceeding the percentage allowed when nine #12 XHHW conductors are placed in a 1-inch EMT conduit?

(A) 0.1831 sq. in.   (B) 0.1681 sq. in.   (C) 0.2246 sq. in. (D) none of these
 

 


22. The ampacity of a #12 TW conductor when there are not more than three conductors in a raceway and the ambient temperature is 36oC would be ___ amps.

(A) 20   (B) 22   (C) 26   (D) 20.5
 

 


23. When sizing the service conductors for an apartment complex, the minimum demand load in kW for eight 5 kW ranges would be ____kW.

(A) 11.52   (B) 16.96   (C) 32   (D) None of these
 

 


24. What size octagon box is required for 5 - #12 and 4 - #14 conductors?

(A) 2 1/8"   (B) 4"   (C) 2 1/2"   (D) 2"
 

 


25. #2/0 THW copper service conductors would require a grounding electrode conductor of _____.

(A) #2   (B) #8   (C) #6   (D) #4
 

 


26. When sizing the service on a dwelling unit, the small appliance load plus laundry load should be computed at ___ VA.

(A) 2,000   (B) 4,500   (C) 5,200   (D) 3,600
 

 


27. Assuming that the area of all the conductors (over 4 conductors) to be installed in a 1 "EMT conduit is 0.30 sq. in., which of the following is true?

(A) It is necessary to change the THW conductors to RHW.
(B) The conductors' area is less than the allowable area of tubing fill.
(C) The conductor's area is greater than the allowable area of tubing fill.
(D) It is necessary to select another trade size.
 

 


28. The feeder carrying two single phase, 1 1/2 hp, 230v motors would be required to have a load current rating of ___amps.

(A) 32.5    (B) 22.5    (C) 16    (D) 28
 

 


29. Using the standard method, what would the demand load on the service be for a 1500 sq. ft. house with the following: 1-12 kW range 1-dryer 1-6 kW waterheater 1-washer rated 10 amps (full load)

(A) at least 24 but less than 26 kW
(B) at least 28 but less than 30 kW
(C) at least 20 but less than 22 kW
(D) at least 26 but less than 28 kW
 

 


30. The branch-circuit protection for a 1Ø, 115v, 3 hp motor would normally be ___ using dual element time delay fuses.

(A) 60 amps   (B) 30 amps   (C) 40 amps   (D) 80 amps

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Last modified: 06/25/08