| List-I | List-II | ||
| A. | P wave | I. | Heart muscles are electrically silent |
| B. | QRS complex | II. | Depolarization of ventricles. |
| C. | T wave | III. | Depolarization of atria. |
| D. | T-P gap | IV. | Repolarization of ventricles. |
| 1. | A-III, B-II, C-IV, D-I |
| 2. | A-II, B-III, C-I, D-IV |
| 3. | A-IV, B-II, C-I, D-III |
| 4. | A-I, B-III, C-IV, D-II |
| List-I | List-II | ||
| A. | P-wave | I. | Beginning of systole |
| B. | Q-wave | II. | Repolarisation of ventricles |
| C. | QRS complex | III. | Depolarisation of atria |
| D. | T-wave | IV. | Depolarisation of ventricles |
| Options: | A | B | C | D |
| 1. | I | II | III | IV |
| 2. | III | I | IV | II |
| 3. | IV | III | II | I |
| 4. | II | IV | I | II |
| List-I (ECG) | List-II (Electrical activity of heart) | ||
| (A) | P-wave | (I) | Depolarisation of ventricles |
| (B) | QRS complex | (II) | End of systole |
| (C) | T wave | (III) | Depolarisation of atria |
| (D) | End of T wave | (IV) | Repolarisation of ventricles |
| Options: | (A) | (B) | (C) | (D) |
| 1. | IV | I | III | II |
| 2. | I | IV | III | II |
| 3. | IV | III | I | II |
| 4. | III | I | IV | II |
The QRS complex in a standard ECG represents:
| 1. | Depolarisation of auricles | 2. | Depolarisation of ventricles |
| 3. | Repolarisation of ventricles | 4. | Repolarisation of auricles |
Match the Column I and Column II:
| Column I | Column II | ||
| (a) | P-waves | (i) | Depolarisation of ventricles |
| (b) | QRS complex | (ii) | Repolarisation of ventricles |
| (c) | T-wave | (iii) | Coronary ischemia |
| (d) | Reduction in the size of T-wave | (iv) | Depolarisation of atria |
| (v) | Repolarisation of atria |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (iii) | (v) | (iv) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (iv) | (i) | (ii) | (v) |
| 4. | (ii) | (i) | (v) | (iii) |
The diagram given here is the standard ECG of a normal person, The P - wave represents the:
Given below is the ECG of a normal human. Which one of its components is correctly interpreted below?

| 1. | Peak P-Initiation of left atrial contraction only |
| 2. | Complex QRS-One complete pulse |
| 3. | Peak T-Initiation of total cardiac contraction |
| 4. | Peak P and Peak R together-systolic and diastolic blood pressures |
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1. R-repolarisation of ventricles
2. S-start of systole
3. T-end of diastole
4. P-depolarisation of the atria