Electrical Branch Circuits Worksheet

A voltage drop on both feeders and branch circuits to the farthest outlet to provide reasonable efficiency of operation shall not exceed ___.

• 5%

• 3%

• 10%

• 7%

Conductors of branch circuits supplying more than one receptacle for cord-and-plug-connected portable loads shall have an ampacity of ___ the rating of the branch circuit.

• equal to

• not higher than

• not less than

• these

For ranges of 8.75 kW or more in rating, the minimum branch circuit rating shall be ___

• 30 A

• 40 A

• 50 A

• 60 A

For household ranges rated ___ kW or more, the minimum branch circuit rating shall be 40 amperes.

• 4

• 6

• 8

• 8 3/4

Tap conductors for household cooking equipment supplied from a 50 ampere branch circuit shall have an ampacity of not less than ___ amperes.

• 50

• 70

• 20

• 80

Tap conductors include any conductors that are a part of the leads supplied with the appliance that are ___ than the branch circuit conductors.

• smaller

• greater

• equal

• larger

The ampacity of branch circuit conductors shall not be ___ than 125 percent of the designed potential load of utilization equipment that will be operated simultaneously.

• smaller

• greater

• equal

• more

For supervised installation, branch circuit conductor ___ shall be permitted to be determined by licensed electrical practitioner or non-licensed electrical practitioner under the supervision of a licensed electrical practitioner under engineering supervision.

• installing

• sizes

• sizing

• none of these

Supervised installations are defined as those portions of a facility where the following conditions are met except ___.

• conditions of design and installation are provided under engineering supervision

• licensed electrical practitioner or non-licensed electrical practitioner under the supervision of a licensed electrical practitioner with documented training and experience

• branch circuit conductors and equipment shall be protected by overcurrent protective devices that have a rating

• all of these

Where a ___ supplies continuous loads or any combination of continuous or noncontinuous loads, the rating of the overcurrent devices shall not be less than the noncontinuous load plus 125% of the continuous load.

• load

• branch circuit

• demand

• conductor