MCQs on ECG Data Analysis

What does an Electrocardiogram (ECG) measure?

• Blood pressure

• Electrical activity of the heart

• Oxygen saturation levels

• Body temperature

Which wave in the ECG represents atrial depolarization?

• P wave

• QRS complex

• T wave

• U wave

What is the primary feature used to detect heart rate from an ECG signal?

• P wave duration

• Distance between consecutive R-peaks

• Amplitude of the T wave

• QRS width

Which of the following techniques is commonly used to remove noise from ECG signals?

• Fourier Transform

• Wavelet Transform

• Moving Average Filter

• All of the above

What does a prolonged QT interval indicate in an ECG?

• Normal heart rhythm

• Increased risk of arrhythmias

• Atrial fibrillation

• Complete heart block

Which feature in the ECG is most associated with ventricular depolarization?

• P wave

• QRS complex

• T wave

• PR interval

In ECG data analysis, which machine learning technique is commonly used for arrhythmia classification?

• K-Means Clustering

• Support Vector Machine (SVM)

• Principal Component Analysis (PCA)

• Apriori Algorithm

What is the typical frequency range of ECG signals?

• 0.1 – 10 Hz

• 0.05 – 150 Hz

• 1 – 500 Hz

• 50 – 1000 Hz

What is the purpose of the RR interval in ECG analysis?

• To measure the duration of the QRS complex

• To calculate heart rate variability (HRV)

• To identify P wave abnormalities

• To detect atrial depolarization

Which of the following is a common ECG abnormality?

• Normal sinus rhythm

• Atrial fibrillation

• Bradycardia

• Both B and C