40 Practice 1

What is the total demand for 11x 5,200 watt dryers using the standard method?

Place the following articles in the correct order from top to bottom.

Rod and pipe grounding electrodes shall be at least _____ ft. in length.

Dry type transformers installed indoors and rated 112 1/2 KVA or less shall have a separation of how many inches from combustible material?

Given a scenario where you’re working with rigid metal conduit (RMC), and your conductor size is 12 AWG THWN, how many of these conductors can you fit in a 1/2 inch RMC?

How many Va’s per linear ft. would you calculate for show window lighting?

How many 12 AWG THHN conductors can be installed in a 3/4 inch EMT conduit?

How many more #4 THWN conductors can you fit inside of a piece of 2.5 inch PVC SCHED 80 pipe that already contains 10x #4 THWN conductors?

How many more #10 THWN conductors can you fit inside of a piece of 1.5 inch PVC SCHED 80 pipe that already contains 6x #10 THWN conductors?

A single-phase transformer has a primary voltage of 240 volts and a primary current of 10 amperes. The transformer’s turns ratio is 4:1. What is the secondary voltage and secondary current of this transformer?

What is the total demand  for 9x 4,800 watt dryers using the standard method?

A single-phase transformer with a primary voltage of 240V and a secondary voltage of 120V has a rated primary current of 20A. Calculate the rated secondary current of the transformer.

Bonded neutral generators must provide GFCI protection for all _______________?

How many 4/0 AWG XHHW conductors can be accommodated in a 4″ PVC Schedule 80 conduit?

What is the minimum size copper equipment grounding conductor required for a 200 amp feeder, supplying a detached garage located 50 feet from the main service panel?

What is the secondary voltage of a transformer that has a 4:1 turn ratio and a primary voltage of 480?

How many Vas would you calculate for a single family dwelling in Dallas Texas that has the following appliances:

A 4,200 Va water heater, a 1,000 Va disposal, and a 1,100 Va dishwasher?

Please match the correct articles.

For a single-phase 240V residential service, what is the minimum size of the grounding electrode conductor (GEC) for a service with 3/0 AWG copper ungrounded conductors?

What is the maximum recommended voltage drop for any 1 circuit?

What is the proper formula for voltage drop?

What is the voltage drop maximum recommendation for an entire system including branch circuits and feeders?

What is the Voltage drop of a 200 amp circuit using 4/0 copper conductors that is 225 ft long on a 120/240 system?

When a branch circuit is servicing sensitive electronic equipment, what is the maximum voltage drop % allowed?

How many 10 AWG THWN-2 conductors can be accommodated in a 1″ Intermediate Metal Conduit (IMC)?

Which one of these is the correct way to figure 3 phase voltage for calculation purposes? (This example is the last step before figuring a service calculation.)

How many Va’s do you calculate for each receptacle yoke in a commercial building other than banks and offices?

How many Va’s would you calculate “before demand factors” for a 3 unit apartment building where each unit is 2,000 sq. ft.?

What is the amp draw on a 240v circuit with 20 ohms of resistance?

How many #8 THWN conductors can you fit inside of a piece of 2.5 inch PVC SCHED 80 pipe that already contains 10x #4 THWN conductors?

How many 4 AWG THHN conductors can be installed in a run of 1-inch Rigid Metal Conduit (RMC)?

What is the amperage of a 120v circuit, that has a total wattage of 1,200?

How many 6 AWG THHN conductors can be fitted in a run of 2″ Rigid Metal Conduit (RMC)?

How many 8 AWG THHN conductors can be accommodated in a 1-1/2″ Electrical Metallic Tubing (EMT)?

What is the resistance of a 120v circuit that has a 5 amp draw on it?

How many RHH 6 AWG conductors can fit into a 1-inch PVC Schedule 40 conduit?

What is the resistance on a 120v circuit, with 10 amps of current?