Deck 1: General Wiring and Fundamentals

Question 1

Both hard and soft conversions cannot be used for ____________________ sizes since these are not exact measurements.

Answer 1

trade

Question 2

How does you perform a conversion from rms to actual voltage?

Answer 2

Multiply 0.707 x alternating peak (from oscilloscope).It is also acceptable to multiply by 0.637 depending upon the type of device.

Question 3

Assume the resistances in a series circuit are 4 ohms, 2 ohms, and 6 ohms, and the circuit is powered at 100 volts.Determine the total circuit resistance.

Answer 3

The resistors are in series; therefore, R_T = 2 $\Omega$ +4 $\Omega$ +6 $\Omega$ =12 $\Omega$

Question 4

How can you tell when large blocks of text have been added to the Code?

Question 5

A plot of voltage vs.time for an alternating current yields a(n) ____________________.

Question 6

Assume the parallel resistances in a circuit have the values of 4 ohms, 6 ohms, and 10 ohms, and the circuit is operated at 100 volts.Determine the total voltage.

Question 7

Power is defined as work divided by time.

Question 8

The National Electrical Code is revised every ____________________ unless a TIA is submitted.

Question 9

If a voltmeter (instead of the oscilloscope) is used to measure voltage across an alternating current, the actual read out will be the _____________________ voltage.

Question 10

The current drawn by a 100-watt incandescent lightbulb operating at its rated 50 volts is ____________________ amperes.

Question 11

The shorter a wire, the more the resistance.

Question 12

Assume the total resistance in a series circuit is 12 ohms and the circuit is powered at 100 volts.Calculate the current for this circuit.

Question 13

The area of a wire is not a true area.

Question 14

The area of a solid wire that is 0.01 inches in diameter is ____________________ mils.

Question 15

Provide a synopsis of one of the articles in the Code, in your own words.

Question 16

Wire A and Wire B are both 100mm long.While Wire A is at room temperature, Wire B is heated to 55 ^oC.Wire ____________________ has the higher resistance.

Question 17

Alternating current travels in only one direction.

Question 18

The voltage drop across an incandescent lightbulb is 200 volts, and the current flow through the lightbulb is 10 amperes.The resistance of the lightbulb filament when it is lighted is ____________________ ohms.

Question 19

When resistors are in series, the voltage is the same throughout the circuit.