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MCQ Questions for class 5 Evs Blow hot blow cold

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Total Questions: 10

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Q1. _______ is the taking in and giving out of air.

  1. Breathing
  2. Swimming
  3. Playing
  4. Dancing
Answer: Breathing

Q2. The process of breathing in air is called

  1. Exhalation
  2. Inhalation
  3. Running
  4. Growing
Answer: Inhalation

Q3. The process of breathing out air is called

  1. Inhalation
  2. Acceleration
  3. Exhalation
  4. Conversion
Answer: Exhalation

Q4. The organ system responsible for respiration is called

  1. Working system
  2. Filtering system
  3. Circulatory system
  4. Respiratory system
Answer: Respiratory system

Q5. We breathe in air through our _____

  1. Ears
  2. Nose
  3. Mouth
  4. All of these
Answer: Nose

Q6. Which of the following protects our lungs?

  1. Ribcage
  2. Skull
  3. Heart
  4. Kidney
Answer: Ribcage

Q7. Which of the following muscular organ moves our chest in and out every time we breathe?

  1. Mouth
  2. Heart
  3. Diaphragm
  4. Lungs
Answer: Diaphragm

Q8. Our heart beats _____ times per minute.

  1. 100
  2. 72
  3. 60
  4. 25
Answer: 72

Q9. Which of the following instrument is used by Doctors to measure Heartbeat of a patient?

  1. Stethoscope
  2. Thermometer
  3. Syringe
  4. None of these
Answer: Stethoscope

Q10. This gas is harmful for our body

  1. Oxygen
  2. Carbon dioxide
  3. Hydrogen
  4. Nitrogen
Answer: Carbon dioxide

Q11. It is a muscular organ that keeps pumping blood.

  1. Heart
  2. Stomach
  3. Brain
  4. Lungs
Answer: Heart

Q12. Normal human body temperature is ______

  1. 97.4 F
  2. 98.4 F
  3. 99.4 F
  4. None of these
Answer: 98.4 F

Q13. Which of the following helps in exchange of gases?

  1. Alveoli
  2. Diaphragm
  3. Stomach
  4. Heart
Answer: Alveoli

Q14. Which of the following gas we breathe in?

  1. Carbon dioxide
  2. Oxygen
  3. Methane
  4. Nitrogen
Answer: Oxygen

Q15. What is the other name of windpipe?

  1. Diaphragm
  2. Alveoli
  3. Food pipe
  4. Trachea
Answer: Trachea