CABT Fundamentals of Electronics Questions and Answers

Question 1

A biomedical technician is servicing a defibrillator and notices the time it takes to deliver a shock is significantly delayed.
This issue is most likely related to a failing component responsible for storing electrical charge.
Which of the following electronic components is the most probable cause?

Accepted Answer

Capacitor

Answer

Resistor

Answer

Diode

Answer

Transistor

Question 2

According to Ohm's Law, if the voltage supplied to a medical device remains constant but the resistance of a specific circuit within it increases, what is the expected effect on the current?

Accepted Answer

The current will decrease.

Answer

The current will increase.

Answer

The current will remain unchanged.

Answer

The current will become alternating.

Question 3

A technician is troubleshooting a patient monitoring system where a very weak physiological signal (like an ECG) is not being displayed correctly. The issue is likely in the amplification stage. Which component is specifically designed to amplify such weak signals with high precision in medical instruments?

Accepted Answer

An operational amplifier (Op-Amp)

Answer

A transformer

Answer

A fuse

Answer

A relay

Question 4

Which of the following electronic components is a semiconductor device that allows current to flow in only one direction and is often used for rectification in power supplies for medical equipment?

Accepted Answer

Diode

Answer

Inductor

Answer

Capacitor

Answer

Resistor

Question 5

In a medical device's power supply circuit, an inductor is often used in conjunction with a capacitor. What is the primary function of the inductor in this filtering application?

Accepted Answer

To oppose changes in current.

Answer

To store electrical charge.

Answer

To block direct current (DC).

Answer

To step up the voltage.

Question 6

A technician is working on a portable insulin pump. The compact size and low power consumption of the device's control circuitry are critical design features. These are made possible primarily by the use of which technology?

Accepted Answer

Integrated circuits (Semiconductors)

Answer

Vacuum tubes

Answer

Electromechanical relays

Answer

High-capacity resistors

A biomedical technician is servicing a defibrillator and notices the time it takes to deliver a shock is significantly delayed.This issue is most likely related to a failing component responsible for storing electrical charge.Which of the following electronic components is the most probable cause?