Basic Qualification · B-005 Basic electronics and theory · B-005-001-007
How many megahertz is 7040 kHz?
- A 7.040 MHz
- B 0.740 MHz
- C 70.40 MHz
- D 0.074 MHz
Correct answer: A — 7.040 MHz. From the official ISED question bank, verified word for word.
Why
To change kilohertz to megahertz, you divide by one thousand because "kilo" means one thousand and "mega" means one million, so 7040 divided by 1000 equals 7.040. The full explanation — and one for every question — is in Pro.
Practise this section
The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.