T5B2014: Math for electronics: conversion of electrical units; decibels; the metric system
T5B012014:
How many milliamperes is 1.5 amperes?
1,500 milliamperes
15 milliamperes
150 milliamperes
15,000 milliamperes
T5B022014:
What is another way to specify a radio signal frequency of 1,500,000 hertz?
1500 kHz
1500 MHz
15 GHz
150 kHz
T5B032014:
How many volts are equal to one kilovolt?
One thousand volts
One onethousandth of a volt
One hundred volts
One million volts
T5B042014:
How many volts are equal to one microvolt?
One onemillionth of a volt
One million volts
One thousand kilovolts
One onethousandth of a volt
T5B052014:
Which of the following is equivalent to 500 milliwatts?
0.5 watts
0.02 watts
5 watts
50 watts
T5B062014:
If an ammeter calibrated in amperes is used to measure a 3000milliampere current, what reading would it show?
3 amperes
0.003 amperes
0.3 amperes
3,000,000 amperes
T5B072014:
If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?
3525 kHz
0.003525 kHz
35.25 kHz
3,525,000 kHz
T5B082014:
How many microfarads are 1,000,000 picofarads?
1 microfarad
0.001 microfarads
1000 microfarads
1,000,000,000 microfarads
T5B092014:
What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?
3 dB
2 dB
5 dB
10 dB
T5B102014:
What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?
6 dB
1 dB
3 dB
9 dB
T5B112014:
What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?
10 dB
12 dB
18 dB
28 dB
T5B122014:
Which of the following frequencies is equal to 28,400 kHz?
28.400 MHz
2.800 MHz
284.00 MHz
28.400 kHz
T5B132014:
If a frequency readout shows a reading of 2425 MHz, what frequency is that in GHz?
2.425 GHz
0.002425 GHZ
24.25 GHz
2425 GHz
Color key:

● = Unseen

● = Weak

● = Review

● = Learned

● = Incorrect answer
