MCQs on Air quality index for board exam preparations

MCQs on Air Quality, Air quality index, and Air Pollution from pollutants and other sources(part-2)

MCQs on Air quality index for SSC, PSC, UPSC, NDA, State level Exam preparations  I Quiz on Air Quality index for board exam preparations

What is Air Quality

Air quality refers to the condition of the air within our surroundings Environment, especially in relation to its effects on health and the environment. It is typically assessed based on the concentration of pollutants such as particulate matter (PM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), and volatile organic compounds (VOCs) present in the air.

What is Good Air Quality

Good air quality implies that these pollutants are at low levels and do not pose significant health risks to humans or the environment.

What is Poor Air Quality

Poor air quality, on the other hand, indicates higher concentrations of pollutants, which can lead to adverse health effects such as respiratory and cardiovascular problems, as well as environmental degradation.

Factors influenced  Air Quality degraded

Air quality is influenced by various factors including industrial emissions, vehicle exhaust, agricultural activities, natural sources like wildfires, and weather conditions (such as temperature inversions that trap pollutants close to the ground). Monitoring and maintaining good air quality are important for public health, environmental sustainability, and overall quality of life.

Air quality index, pollutants sources and their effects MCQ

In this blog , there are  20 MCQ covers various aspects of Air quality, Air quality index, focusing on measurements, health effects, and contributors to the issue. These MCQ and solution help you to prepare for Academic education , GK paper in SSC, PSC,NDA, CDS, UPSC, UPPSC, CBSE, ICSE and many state level PSC examinations and other competitive examinations.

Question 1: AQI is useful for?
A) Increasing industrial emissions
B) Predicting earthquakes
C) Protecting public health
D) Encouraging outdoor activities
Explanation: Answer: C) Protecting public health.
Question 2: Which pollutant is commonly associated with AQI monitoring?
A) Chlorine
B) Mercury vapor
C) Freshwater
D) Sulfur dioxide
Explanation: Answer: D) Sulfur dioxide.
Question 3: What is the purpose of colour codes associated with AQI ranges?
A) To match weather conditions
B) To indicate pollutant types
C) To provide visual guidance on health impacts
D) To signal equipment failure
Explanation: Answer: C) To provide visual guidance on health impacts.
Question 4: AQI is NOT influenced by?
A) Ocean currents
B) Wind patterns
C) Forest fires
D) Rush hour traffic
Explanation: Answer: A) Ocean currents.
Question 5: How can agencies communicate real-time AQI data worldwide?
A) By telephone calls
B) Using a dedicated website
C) Sending physical reports
D) Through social media only
Explanation: Answer: B) Using a dedicated website.
Question 6: What is an anticyclone associated with in terms of AQI?
A) Heavy rainfall
B) High wind speeds
C) Temperature inversion
D) Stagnant air conditions
Explanation: Answer: D) Stagnant air conditions.
Question 7: AQI calculations vary because?
A) They are based solely on temperature
B) They use different conversion functions for each pollutant
C) They are fixed for all pollutants
D) They are influenced only by wind speed
Explanation: Answer: B) They use different conversion functions for each pollutant.
Question 8: What is the role of masks during high AQI days?
A) To increase pollutant intake
B) To reduce inhalation of fine particles
C) To decrease visibility
D) To promote outdoor activities
Explanation: Answer: B) To reduce inhalation of fine particles.
Question 9: AQI categories are typically associated with?
A) Varied colour codes
B) Uniform temperature ranges
C) Constant humidity levels
D) Fixed wind speeds
Explanation: Answer: A) Varied colour codes
Question 10: What does an AQI descriptor indicate?
A) The exact pollutant concentration
B) The potential health impacts
C) The weather forecast
D) The emission source
Explanation: Answer: B) The potential health impacts.
Question 11: What action can be taken by agencies during severe air quality episodes?
A) Increase emissions to disperse pollutants
B) Ignore AQI readings
C) Encourage outdoor activities
D) Implement emergency plans to reduce emissions
Explanation: Answer: D) Implement emergency plans to reduce emissions.
Question 12: Which of the following is NOT a common pollutant monitored for AQI calculation?
A) Ozone
B) Carbon monoxide
C) Radon
D) Nitrogen dioxide
Explanation: Answer: C) Radon.
Question 13: What is the purpose of national air quality standards?
A) To maximize industrial emissions
B) To control forest fires
C) To protect public health
D) To promote outdoor activities
Explanation: Answer: C) To protect public health.
Question 14: An "action day" during high AQI might encourage:?
A) Use of private vehicles
B) Voluntary measures to reduce emissions
C) Outdoor events
D) Increased industrial emissions
Explanation: Answer: B) Voluntary measures to reduce emissions.
Question 15: AQI values are converted from air pollutant concentrations using:?
A) Different formulas for each pollutant
B) A single fixed formula
C) Wind speed and direction
D) Temperature-dependent equations
Explanation: Answer: A) Different formulas for each pollutant.
Question 16: During an air pollution episode, AQI may indicate:?
A) Acute exposure risks
B) Improved air quality due to rain
C) Conditions favourable for outdoor activities
D) No significant harm to public health
Explanation: Answer: A) Acute exposure risks.
Question 17: What may cause stagnant air conditions leading to high AQI?
A) High precipitation
B) Strong hurricanes
C) Dense fog
D) Low wind speeds
Explanation: Answer: D) Low wind speeds.
Question 18: What are descriptors associated with AQI ranges?
A) Numbers
B) Letters
C) Colours
D) Symbols
Explanation: Answer: C) Colours.
Question 19: How many pollutants are considered in the AQI system of India?
A) 7
B) 8
C) 14
D) 21
Explanation: Answer: B) 8.
Question 20: Which pollutants are commonly monitored to calculate AQI?
A) Water vapor and nitrogen
B) Carbon dioxide and ozone
C) Particulates and sulfur dioxide
D) Methane and radon
Explanation: Answer: C) Particulates and sulfur dioxide.

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