Anaesthetic Breathing Circuits
- Previous year questions on Anaesthetic Breathing Circuits for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Anaesthesia section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 30 live questions in Anaesthetic Breathing Circuits.
- 1 of 30 questions carries a verified exam year: 2019.
- Anaesthesia is worth about 6 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 7 Aug 2026.
Q1.The most appropriate circuit for ventilating a spontaneously breathing infant during anaesthesia is
- AJackson rees modification of Ayre's t piece✓ Correct answer
- BMapleson a or magill's circuit
- CMapleson c or Waters to and fro canister
- DBains circuit
Q2.Which of the following Mapleson systems has no rebreathing bag?
- AB
- BC
- CD
- DE✓ Correct answer
Q3.What is the modification of the mapleson E breathing system used in infants?
- AMapleson A
- BMapleson B
- CMapleson C
- DMapleson F✓ Correct answer
Q4.Spontaneously breathing infant- which breathing circuit to be used?
- AJackson Rees modification of Ayre's T piece✓ Correct answer
- BMapleson A or Magill's circuit
- CMapleson C or waters to & fro canister
- DBain's circuit
Q5.True about Bain circuit – a) Mapleson type Bb) Mapleson type Dc) Can be used for spontaneous respirationd) Can be used for controlled vantilatione) Coaxial
- Abce
- Babd
- Cbcde✓ Correct answer
- Dacde
Q6.The constitution of soda lime is –
- A5% Ca(OH)2, 95%NaOH
- B5% NaOH, 95% Ca(OH)2✓ Correct answer
- C5% KoH 95%NaOH
- D100% Ca(OH)2
Q7.The most appropriate circuit for ventilating children-
- AJackson Rees modification of Ayre's T piece✓ Correct answer
- BMapleson A or Magill's circuit
- CMapleson C or water's to & fro canister
- DBain's circuit
Q8.Clayton is used in a close breathing system for the purpose of
- AAs a hardner
- BAs an absorbent
- CAs a softner
- DAs an indicator✓ Correct answer
Q9.Ayer's T Piece is:
- AMapelson A circuit
- BMapelson B circuit
- CMapelson D circuit
- DMapelson E circuit✓ Correct answer
Q10.Composition of Sodalime is: NaOH Ca(OH)2 KOH
- A4% 95% 1%
- B5`)/0 90`)/0 10/0✓ Correct answer
- C80% 20%
- D15% 84% 1%
Answer key
Q1: A. Jackson rees modification of Ayre's t piece; Q2: D. E; Q3: D. Mapleson F; Q4: A. Jackson Rees modification of Ayre's T piece; Q5: C. bcde; Q6: B. 5% NaOH, 95% Ca(OH)2; Q7: A. Jackson Rees modification of Ayre's T piece; Q8: D. As an indicator; Q9: D. Mapelson E circuit; Q10: B. 5`)/0 90`)/0 10/0.
Other topics in Anaesthesia
- History and Ethics of Anaesthesia
- Preoperative Assessment of the Patient
- Intraoperative CNS and CVS Monitoring
- Respiratory Monitoring During Anaesthesia
- Devices for Airway Management
- Intubation
- The Anaesthesia Machine and Workstation
- Basic and Paediatric Life Support (BLS and PALS)
- ACLS
- Ventilators and O2 Delivery Devices
- Depolarising Neuromuscular Blockers
- Non-Depolarising Neuromuscular Blockers
- Inhaled Anaesthetics: Basic Properties, N2O and Halothane
- Inhaled Anaesthetics: Fluorinated and Inert Agents with Therapeutic Gases
- Intravenous Anaesthesia: Barbiturates, Benzodiazepines and Propofol
- Intravenous Anaesthesia: Etomidate, Ketamine and Day-care Surgery
- Local Anaesthetics: Pharmacology and Properties
- Local Anaesthetics: Individual Agents
- Regional Anaesthesia: Methods and Approaches
- Regional Anaesthesia: Risks and Contraindications
- Peripheral Nerve Blockade
- Anaesthetic Implications of Coexisting Disease
- Anaesthesia in Paediatrics and Obstetrics
- Pain Management: Postoperative, Chronic and Cancer Pain
- Perioperative Anaesthetic Complications