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2008 NEC Review Practice Test 8

Course Name: 2008 NEC Review
Quiz Number:  No. 8
Teacher:  Gerald Newton
Teacher's Home Page:  http://www.electrician2.com
Teacher's Email:  electrician@electrician2.com

No. of Questions= 20


1 A disconnecting means for a 2,300-volt motor must be capable of being locked in the open position.
            
a)
True
b)
False
2 The branch circuit overcurrent device may serve as the disconnecting means for stationary motors rated less than one horsepower.
      
a)
True
b)
False
3 A motor controller shall open all conductors to the motor.
      
a)
True
b)
False
4 In general, enclosures for motor controllers shall not be used as junction boxes unless designs are employed that provide adequate space for this purpose.
      
a)
True
b)
False
5 Heating panels for de-icing must not exceed a rating of 120-watts/square foot.
            
a)
True
b)
False
6 Excess leads of heating cables must not be cut.
      
a)
True
b)
False
7 In most cases, heating cables installed on ceiling boards must be secured at intervals not exceeding 16 inches.
      
a)
True
b)
False
8 Conductors located above a heated ceiling are considered to operate in a 40 degrees C ambient.
      
a)
True
b)
False
9 The non heating leads of 120-volt space heating cables are yellow,
            
a)
True
b)
False
10 Unit switches may disconnect a heater if other means of disconnection are provided.
      
a)
True
b)
False
11 A cord and plug may be the disconnecting means for a wall-mounted electric oven.
            
a)
True
b)
False
12 Dishwashers shall be connected with Type SP-1 flexible cords.
      
a)
True
b)
False
13 Flexible cords are permitted only to supply portable appliances.
            
a)
True
b)
False
14 Toasters may have live parts exposed to contact.
      
a)
True
b)
False
15 The conductor between the surge arrester and the line and the surge arrester and the grounding connection shall not be smaller than 6 AWG copper or aluminum.
            
a)
True
b)
False
16 If a generator operates at 30-volts, protection of live parts is required when the generator is accessible to unqualified persons.
            
a)
True
b)
False
17 The nominal voltage of a lead-acid battery is 2.0 volts per cell.
            
a)
True
b)
False
18 A capacitor operating at 300-volts must be discharged to 50-volts or less within one minute after it is disconnected from the supply.
            
a)
True
b)
False
19 Capacitor circuit conductors must have an ampacity at least 125% of the rated current of the capacitor.
            
a)
True
b)
False
20 Potential or voltage transformers installed indoors require primary fuses.
            
a)
True
b)
False





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