FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

What is the most accurate type of frequency measuring instrument?

1. Oscilloscope

2. Frequency counter

3. Tuning fork

4. Integrated circuit chip having a clock circuit

The correct answer is: Integrated circuit chip having a clock circuit

The correct answer is D - Integrated circuit chip having a clock circuit. Integrated circuit chips with clock circuits are designed specifically to provide accurate frequency measurements. These chips are commonly used in various electronic devices due to their precision and reliability in measuring frequencies. Oscilloscopes are primarily used for visualizing electronic signals in the time domain rather than measuring frequencies directly. Frequency counters are also used for measuring frequencies, but integrated circuit chips with clock circuits are more accurate for this purpose. Tuning forks are mechanical resonators and are not typically used for frequency measurements in electronic systems.