UTILITY ARBORIST APPRENTICESHIP TRAINING PROGRAM - LEVEL ONE BLOCK EXAM :Line J - POWER LINE AWARENESS

!!!DISCLAIMER!!!

These next questions aren’t considered as the official block test of this unit. The instructor had written these himself and we never got the block test back, but it’s still good for practice.

Practice Test:

1. The unit of measurement for the following electric current is ___________ ?

2. The unit of measurement for voltage is _____________?

3. Unit of measurement for the resistance is ____________?

4. The opposition to the floor electricity is ____________ and is measured in ___________ ?

5. The three main factors on electric circuit are?

6. The direct relationship between “current”, “voltage” and “resistance” is known as?

7. Ohm’s law can be calculated by using the following equations ?

Practice Test 2

1. To generate alternating current electricity, we need three things what are they?

2. An electrical wire is made of highly ___________ material?

3. To generate an induce of voltage, some kind of _____________ is required?

4. Magnets have a positive and negative force which reach out from the magnet. These are also called __________ field?

5. The wave that is formed during this rotation of magnetic field across the conductor is called __________ wave?

6. The electrical generator moves at _____ revolutions per second or ____ HERTZ.

Practice Test 3

1. The term Primary designates the winding to which electrical energy is _______?

2. The term Secondary designates the winding from which energy is _______?

3. If the secondary (or output) voltage is higher than the primary (or input) _____?

4. If the secondary voltage is lower than the primary voltage, the transformer said to ___________ the voltage?

5. Why do we use Transformers?

Practice test 4

1. What are two examples of insulators?

2. What are two examples of conductors?

3. Electrical currents in human body produces a variety of effects. These can include what?

4. If you have a current flowing through the human body due to an electrical contact, what is the amount of current, _________ is probably fatal and will cause cardiac arrest?

5. Describe Step Potential?

6. Describe Touch Potential ?