Download AppGovt. JobsFree G.K. & Current AffairsScholarshipBlog
Free PracticeContact
📚 Exam by Category
▾
Objective Questions

Latest ECG Technician Exam Question (Objective Questions), MCQ in English

Subjects : ECG Technician

Question Bank ECG Technician Exam - English
Back to Exam

ECG Technician

Question 1Single Answer
Which part of the cardiac conduction system is known as the pacemaker of the heart?
  1. A
    AV Node
  2. B
    SA Node
  3. C
    Bundle of His
  4. D
    Purkinje Fibers
Question 2Single Answer
What is the role of the AV node in the cardiac conduction system?
  1. A
    To generate electrical impulses
  2. B
    To act as a delay point for the impulses
  3. C
    To transmit signals directly to the Purkinje fibers
  4. D
    To depolarize the atria
Question 3Single Answer
Which structure conducts electrical impulses from the atria to the ventricles?
  1. A
    Purkinje fibers
  2. B
    SA node
  3. C
    AV node
  4. D
    Bundle of His
Question 4Single Answer
The right and left bundle branches originate from which structure?
  1. A
    SA Node
  2. B
    AV Node
  3. C
    Bundle of His
  4. D
    Purkinje Fibers
Question 5Single Answer
What is the function of the Purkinje fibers in the cardiac conduction system?
  1. A
    To delay impulses
  2. B
    To depolarize the atria
  3. C
    To rapidly conduct electrical signals to the ventricles
  4. D
    To generate impulses in place of the SA node
Question 6Single Answer
Which wave on the ECG represents atrial depolarization?
  1. A
    P wave
  2. B
    QRS complex
  3. C
    T wave
  4. D
    U wave
Question 7Single Answer
Which part of the conduction system is responsible for the depolarization of the ventricles?
  1. A
    SA Node
  2. B
    AV Node
  3. C
    Purkinje Fibers
  4. D
    Bundle of His
Question 8Single Answer
What is the intrinsic firing rate of the SA node?
  1. A
    20-40 beats per minute
  2. B
    40-60 beats per minute
  3. C
    60-100 beats per minute
  4. D
    100-120 beats per minute
Question 9Single Answer
If the SA node fails, which structure takes over as the pacemaker?
  1. A
    Bundle of His
  2. B
    Purkinje Fibers
  3. C
    AV Node
  4. D
    Left Bundle Branch
Question 10Single Answer
What is the intrinsic firing rate of the AV node?
  1. A
    10-20 beats per minute
  2. B
    20-40 beats per minute
  3. C
    40-60 beats per minute
  4. D
    60-100 beats per minute
Question 11Single Answer
Which part of the conduction system prevents electrical signals from traveling directly from atria to ventricles without a delay?
  1. A
    SA Node
  2. B
    AV Node
  3. C
    Purkinje Fibers
  4. D
    Bundle Branches
Question 12Single Answer
What does the QRS complex on an ECG represent?
  1. A
    Atrial depolarization
  2. B
    Ventricular depolarization
  3. C
    Ventricular repolarization
  4. D
    Atrial repolarization
Question 13Single Answer
Which structure ensures that the heart's contractions are coordinated?
  1. A
    Purkinje fibers
  2. B
    SA Node
  3. C
    Cardiac muscle cells
  4. D
    Cardiac conduction system
Question 14Single Answer
What is the primary role of the Bundle of His?
  1. A
    To depolarize the atria
  2. B
    To transmit impulses to the bundle branches
  3. C
    To generate impulses
  4. D
    To act as the pacemaker
Question 15Single Answer
Where is the SA node located?
  1. A
    In the right atrium near the superior vena cava
  2. B
    In the left atrium near the pulmonary veins
  3. C
    At the junction of the atria and ventricles
  4. D
    Within the ventricular septum
Question 16Single Answer
What causes the T wave in an ECG?
  1. A
    Atrial depolarization
  2. B
    Ventricular depolarization
  3. C
    Ventricular repolarization
  4. D
    Atrial repolarization
Question 17Single Answer
Which structure distributes electrical impulses to the myocardium?
  1. A
    AV Node
  2. B
    Purkinje Fibers
  3. C
    SA Node
  4. D
    Bundle of His
Question 18Single Answer
What happens during the plateau phase of cardiac muscle action potential?
  1. A
    Rapid depolarization occurs
  2. B
    Calcium ions enter the cells, maintaining depolarization
  3. C
    Rapid repolarization occurs
  4. D
    The muscle returns to resting potential
Question 19Single Answer
What is the primary function of the left and right bundle branches?
  1. A
    Transmit impulses to the Purkinje fibers
  2. B
    Act as the heart’s pacemaker
  3. C
    Slow down electrical conduction
  4. D
    Generate electrical impulses
Question 20Single Answer
How does the SA node initiate an impulse?
  1. A
    By depolarizing spontaneously due to ion exchange
  2. B
    By receiving signals from the AV node
  3. C
    By responding to signals from the brain
  4. D
    By being stimulated by the Purkinje fibers
Question 21Single Answer
What is the function of the cardiac conduction system?
  1. A
    To regulate blood pressure
  2. B
    To coordinate the contraction and relaxation of heart muscles
  3. C
    To increase the heart rate during exercise
  4. D
    To maintain oxygen levels in the blood
Question 22Single Answer
What does the PR interval on an ECG indicate?
  1. A
    Time taken for ventricular depolarization
  2. B
    Time taken for atrial depolarization
  3. C
    Time taken for impulses to travel from the atria to the ventricles
  4. D
    Time taken for ventricular repolarization
Question 23Single Answer
What is the physiological significance of the AV node delay?
  1. A
    It ensures ventricles contract before atria
  2. B
    It allows atria to fully contract and empty before ventricular contraction
  3. C
    It prevents overloading of electrical signals in the ventricles
  4. D
    It reduces heart rate during rest
Question 24Single Answer
Which ion is most critical for the depolarization of the SA node?
  1. A
    Sodium
  2. B
    Potassium
  3. C
    Calcium
  4. D
    Magnesium
Question 25Single Answer
What is the heart’s intrinsic backup pacemaker if both the SA and AV nodes fail?
  1. A
    Purkinje fibers
  2. B
    Bundle of His
  3. C
    Ventricular myocytes
  4. D
    Left bundle branch
Question 26Single Answer
Which structure generates the fastest electrical impulses in the heart?
  1. A
    AV Node
  2. B
    SA Node
  3. C
    Bundle of His
  4. D
    Purkinje Fibers
Question 27Single Answer
Which chamber of the heart receives deoxygenated blood from the systemic circulation?
  1. A
    Left atrium
  2. B
    Left ventricle
  3. C
    Right atrium
  4. D
    Right ventricle
Question 28Single Answer
The aorta originates from which chamber of the heart?
  1. A
    Right atrium
  2. B
    Left atrium
  3. C
    Right ventricle
  4. D
    Left ventricle
Question 29Single Answer
Which blood vessels carry oxygenated blood to the lungs?
  1. A
    Pulmonary veins
  2. B
    Pulmonary arteries
  3. C
    Superior vena cava
  4. D
    Inferior vena cava
Question 30Single Answer
The sinoatrial (SA) node is located in which part of the heart?
  1. A
    Right ventricle
  2. B
    Left ventricle
  3. C
    Right atrium
  4. D
    Left atrium
Question 31Single Answer
Which layer of the heart wall is responsible for its contractile function?
  1. A
    Epicardium
  2. B
    Myocardium
  3. C
    Endocardium
  4. D
    Pericardium
Question 32Single Answer
The tricuspid valve has how many leaflets?
  1. A
    Two
  2. B
    Three
  3. C
    Four
  4. D
    Five
Question 33Single Answer
The coronary arteries supply blood to which organ?
  1. A
    Lungs
  2. B
    Kidneys
  3. C
    Heart
  4. D
    Liver
Question 34Single Answer
The pulmonary veins empty into which chamber of the heart?
  1. A
    Right atrium
  2. B
    Left atrium
  3. C
    Right ventricle
  4. D
    Left ventricle
Question 35Single Answer
The inferior vena cava returns blood from which part of the body?
  1. A
    Head and neck
  2. B
    Upper limbs
  3. C
    Lower limbs and abdomen
  4. D
    Lungs
Question 36Single Answer
The outermost layer of the pericardium is called?
  1. A
    Visceral pericardium
  2. B
    Parietal pericardium
  3. C
    Myocardium
  4. D
    Endocardium
Question 37Single Answer
The Bundle of His is located in the?
  1. A
    Atria
  2. B
    Ventricles
  3. C
    Septum
  4. D
    SA node
Question 38Single Answer
The semilunar valves prevent backflow into the?
  1. A
    Atria
  2. B
    Ventricles
  3. C
    Pericardium
  4. D
    Septum
Question 39Single Answer
The largest artery in the human body is the?
  1. A
    Pulmonary artery
  2. B
    Coronary artery
  3. C
    Aorta
  4. D
    Carotid artery
Question 40Single Answer
The right ventricle pumps blood into the?
  1. A
    Aorta
  2. B
    Pulmonary artery
  3. C
    Superior vena cava
  4. D
    Left atrium
Question 41Single Answer
The fibrous skeleton of the heart primarily provides?
  1. A
    Electrical conduction
  2. B
    Structural support
  3. C
    Oxygenation
  4. D
    Filtration
Question 42Single Answer
The left coronary artery branches into the?
  1. A
    Right marginal artery
  2. B
    Posterior descending artery
  3. C
    Circumflex artery and left anterior descending artery
  4. D
    Right coronary artery
Question 43Single Answer
The AV node is located in the?
  1. A
    Right atrium
  2. B
    Left atrium
  3. C
    Right ventricle
  4. D
    Interatrial septum
Question 44Single Answer
The smallest blood vessels in the body are?
  1. A
    Arteries
  2. B
    Veins
  3. C
    Capillaries
  4. D
    Arterioles
Question 45Single Answer
The coronary sinus empties into the?
  1. A
    Left atrium
  2. B
    Right atrium
  3. C
    Left ventricle
  4. D
    Right ventricle
Question 46Single Answer
The primary function of the respiratory system is?
  1. A
    Nutrient absorption
  2. B
    Gas exchange
  3. C
    Waste elimination
  4. D
    Hormone secretion
Question 47Single Answer
The trachea is lined with which type of tissue?
  1. A
    Simple squamous epithelium
  2. B
    Stratified squamous epithelium
  3. C
    Pseudostratified ciliated columnar epithelium
  4. D
    Transitional epithelium
Question 48Single Answer
The functional unit of the lung where gas exchange occurs is the?
  1. A
    Bronchiole
  2. B
    Alveolus
  3. C
    Bronchus
  4. D
    Trachea
Question 49Single Answer
The diaphragm is primarily innervated by which nerve?
  1. A
    Vagus nerve
  2. B
    Phrenic nerve
  3. C
    Intercostal nerves
  4. D
    Radial nerve
Question 50Single Answer
The right lung has how many lobes?
  1. A
    Two
  2. B
    Three
  3. C
    Four
  4. D
    Five
Important Questions Package

ECG Technician Exam Online Question Bank Package

Buy ECG Technician Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in ECG Technician question bank 2026 in Online, PDF & Print study material.

+ Free Monthly Current Affairs, GK & more PDF Download
Sr.Package NameAmount
1.ECG Technician Exam - Hindi
Description : 867 Question with Answer
₹101 [₹500]
2.ECG Technician Exam - English
Description : 984 Question with Answer
₹101 [₹500]
3.ECG Technician Exam - Hindi
Description : 867 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
4.ECG Technician Exam Question Bank Book - Hindi
Description : 867 Question with Answer (Printed Material)
₹450 [₹800]
5.ECG Technician Exam - English
Description : 984 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
6.ECG Technician Exam Question Bank Book - English
Description : 984 Question with Answer (Printed Material)
₹390 [₹600]
View More Questions
Back to Exam