Multiple choice

1. An electric iron is plugged into a receptacle that has 110 V present. If the voltage loss from the panel to the receptacle is 6 V, the line voltage at the panel is

A. 104 V. 

B. 110 V. 

C. 116 V. 

D. 120 V. 

2. A conductor with a diameter of 100 mils has an area of 

A. 0.00785 in2. 

B. 0.01 cmil. 

C. 100 kcmil. 

D. 100 in2. 

3. A single No. 10 copper wire with type THW insulation that's used in free air with an ambient temperature of 1580F has an approximate ampacity of

A. 16.5 A. 

B. 31.9 A. 

C. 36.9 A. 

D. 40.0 A. 

4. When soldering a lug onto a copper wire, you would use 

A. plain solder without flux. 

B. both plain solder and an acid. 

C. acid-core solder only. 

D. rosin-core solder only.