What is a central purpose of personal and community hygiene?
A Reduce infection and protect health
B Prevent every illness
C Sterilize every environment
D Replace medical treatment
Answer: A. Reduce infection and protect health. Hygiene practices reduce exposure to infectious hazards and support health in homes, schools, workplaces, and communities.
What does sanitation primarily manage safely?
A Human waste and wastewater
B Indoor lighting
C Food production
D Only household dust
Answer: A. Human waste and wastewater. Sanitation refers to safe management of human excreta and related wastewater across collection, treatment, and disposal.
In public health, what does WASH stand for?
A Wellness, access, safety, health
B Waste, air, shelter, housing
C Water, agriculture, safety, health
D Water, sanitation, hygiene
Answer: D. Water, sanitation, hygiene. WASH is the common abbreviation for water, sanitation, and hygiene.
Which feature is essential for safe drinking water?
A Free from harmful contamination
B Cold temperature
C Pleasant taste only
D Clear appearance only
Answer: A. Free from harmful contamination. Water can look and taste clear yet contain hazards; safety depends on appropriate quality and protection from contamination.
Why does protecting a water source matter?
A Replace regular monitoring
B Remove household waste later
C Improve water color only
D Prevent contamination before use
Answer: D. Prevent contamination before use. Protecting sources from human, animal, and environmental contamination reduces risks before water enters the supply chain.
Which action helps prevent contamination during household water storage?
A Store water in open buckets
B Dip unwashed cups inside
C Mix new and old water
D Use a clean covered container
Answer: D. Use a clean covered container. Clean, covered storage and careful dispensing help prevent contamination after water has been treated or collected.
When is hand hygiene especially important around food?
A After storing clean dishes
B Only after meals
C Before preparing or eating food
D Only when hands smell
Answer: C. Before preparing or eating food. WHO guidance identifies before preparing food and before eating or feeding others as important times for hand hygiene.
After which activity should people clean their hands?
A Before putting on clean clothes
B After using the toilet
C Before reading a label
D After opening a cupboard
Answer: B. After using the toilet. Hand hygiene after using the toilet or handling faeces helps interrupt transmission of faecal-oral diseases.
What should be used for routine handwashing when available?
A Oil without rinsing
B Dry cloth alone
C Soap and safe water
D Perfume and paper
Answer: C. Soap and safe water. Washing with soap and water removes dirt and many microbes; clean hands help reduce disease transmission.
Which step helps make handwashing more complete?
A Rub all hand surfaces
B Wipe palms on clothing
C Skip between fingers
D Rinse fingertips only
Answer: A. Rub all hand surfaces. Effective handwashing covers the palms, backs of hands, between fingers, and other surfaces before rinsing and drying.
How can people reduce respiratory germ spread through hand contact?
A Touch shared surfaces more
B Skip hand hygiene indoors
C Wipe hands on furniture
D Clean hands after coughing
Answer: D. Clean hands after coughing. Hand hygiene after coughing, sneezing, or blowing the nose can help reduce transmission through contaminated hands.
Why should raw and cooked foods be kept separate?
A Preserve food color
B Improve cooking speed
C Keep food equally warm
D Prevent cross-contamination
Answer: D. Prevent cross-contamination. Microbes from raw foods can transfer to ready-to-eat or cooked foods through hands, surfaces, and utensils.
Which practice follows a WHO key for safer food?
A Leave food uncovered
B Use unsafe water
C Mix raw and cooked
D Cook food thoroughly
Answer: D. Cook food thoroughly. WHO’s Five Keys include keeping clean, separating raw and cooked foods, cooking thoroughly, safe temperatures, and safe water and raw materials.
How should food handlers treat safe water and ingredients?
A Wash produce with dirty water
B Ignore expiry dates
C Use water from any source
D Use safe water, fresh foods
Answer: D. Use safe water, fresh foods. WHO’s Five Keys advise using safe water and raw materials, selecting fresh and wholesome foods, and washing produce appropriately.
What is the sanitation chain designed to protect?
A People and the environment
B Only waste collection staff
C Only household plumbing
D Only drinking-water pipes
Answer: A. People and the environment. Safe sanitation manages waste from containment through transport, treatment, and final disposal or reuse to protect people and the environment.
Why is open defecation a public health concern?
A It protects nearby food
B It can spread disease
C It prevents environmental exposure
D It improves water quality
Answer: B. It can spread disease. Human waste left in the environment can contaminate water, soil, and food and contribute to disease transmission.
Which feature supports dignified, usable sanitation facilities?
A Privacy, safety, and accessibility
B Shared access without privacy
C Unsafe paths and steps
D No doors or partitions
Answer: A. Privacy, safety, and accessibility. Sanitation facilities should be safe, private, usable, and accessible for people with different needs.
What is a public health goal of treating wastewater?
A Increase untreated discharge
B Reduce pollution and exposure
C Move contamination downstream
D Replace safe drinking water
Answer: B. Reduce pollution and exposure. Appropriate wastewater treatment reduces contamination of water bodies and exposure to biological and chemical hazards.
Why should faecal sludge be managed safely?
A Prevent exposure during handling
B Dispose it in drains
C Mix it with drinking water
D Leave it uncovered
Answer: A. Prevent exposure during handling. Safe collection, transport, treatment, and disposal prevent workers and communities from being exposed to pathogens.
What is important for menstrual hygiene in shared facilities?
A No soap or water
B Public changing areas
C Privacy, water, and disposal
D Unusable waste bins
Answer: C. Privacy, water, and disposal. Menstrual hygiene requires safe, private facilities, access to water and supplies, and suitable disposal or washing options.
How can schools support hygiene for students?
A Restrict facilities by gender
B Provide usable water and toilets
C Share unsafe water
D Close handwashing stations
Answer: B. Provide usable water and toilets. Accessible drinking water, toilets, and handwashing facilities support students’ health, dignity, and participation.
Which sanitation feature can improve safety for people with disabilities?
A Narrow steps without rails
B Accessible paths and fixtures
C High unreachable taps
D Locked accessible toilets
Answer: B. Accessible paths and fixtures. Inclusive sanitation design considers paths, fixtures, privacy, and assistance needs so facilities can be used safely.
During an emergency, which WASH action is an early priority?
A Remove all handwashing stations
B Mix waste with supplies
C Secure safe water access
D Suspend water monitoring
Answer: C. Secure safe water access. Emergency WASH planning prioritizes safe water, sanitation, and hygiene to prevent disease and protect affected people.
Why should community members help plan sanitation services?
A Avoid learning local needs
B Replace technical safety checks
C Improve fit and local ownership
D Limit access to facilities
Answer: C. Improve fit and local ownership. Community participation helps services reflect local priorities, practices, and barriers while technical safeguards remain essential.
What can routine water quality monitoring identify?
A Household income differences
B Food preferences
C Potential hazards and failures
D Every future outbreak
Answer: C. Potential hazards and failures. Monitoring helps detect contamination or system failures and supports timely investigation and corrective action.
How should water systems respond to a possible contamination event?
A Follow public health guidance
B Announce unverified claims
C Ignore test results
D Continue without assessment
Answer: A. Follow public health guidance. Water safety responses should use verified information, risk assessment, and guidance from responsible public health and water authorities.
Which household action can reduce standing-water mosquito breeding?
A Leave containers uncovered
B Remove or cover water containers
C Store water in open tires
D Add waste to drains
Answer: B. Remove or cover water containers. Managing water-holding containers can reduce mosquito breeding sites; local vector-control guidance should shape community action.
Why is vector control often more effective when coordinated?
A Multiple measures address transmission
B One household acts alone
C Only indoor spraying is used
D Communities stop surveillance
Answer: A. Multiple measures address transmission. Integrated vector management combines appropriate measures and community participation based on local risks and evidence.
What is one health benefit of cleaner household cooking energy?
A No need for ventilation
B Less harmful indoor smoke
C Higher exposure to soot
D More household air pollution
Answer: B. Less harmful indoor smoke. Cleaner household fuels and technologies can reduce exposure to harmful smoke and support health.
How can ventilation help in indoor environments?
A Replace clean cooking fuels
B Create safe drinking water
C Dilute and remove indoor pollutants
D Sterilize all surfaces
Answer: C. Dilute and remove indoor pollutants. Adequate ventilation can help reduce indoor pollutant concentrations, though it does not replace control at the source.
What should people do before using a household cleaning chemical?
A Read and follow its label
B Store it beside food
C Mix products to strengthen them
D Ignore protective directions
Answer: A. Read and follow its label. Following product labels and safety directions helps reduce poisoning, burns, and harmful chemical exposure.
Why should cleaning chemicals not be mixed casually?
A They lose all odor
B They sterilize every room
C They may release toxic fumes
D They become drinking water
Answer: C. They may release toxic fumes. Some chemical combinations can produce dangerous reactions or fumes; use products only as directed.
What is a safe principle for household waste handling?
A Burn every material indoors
B Separate and dispose appropriately
C Mix sharps with loose rubbish
D Leave waste near water
Answer: B. Separate and dispose appropriately. Appropriate separation, containment, and disposal reduce injury, pests, pollution, and exposure to infectious or hazardous waste.
How should used sharps be handled in a community setting?
A Wrap loosely in paper
B Place in a puncture-resistant container
C Mix with food waste
D Leave on open ground
Answer: B. Place in a puncture-resistant container. Used sharps can injure people and transmit infection; use a suitable puncture-resistant container and local disposal guidance.
Why is healthcare waste segregation important?
A Protect handlers and the public
B Make disposal less traceable
C Mix all waste together
D Increase handling contacts
Answer: A. Protect handlers and the public. Segregating waste at the point where it is generated helps protect healthcare workers, waste handlers, patients, and communities.
What should a food handler do when ill with possible foodborne symptoms?
A Hide symptoms from supervisors
B Follow workplace health guidance
C Handle ready-to-eat food anyway
D Skip handwashing
Answer: B. Follow workplace health guidance. Illness and food handling should be managed according to public health and workplace rules to prevent contamination.
Which practice helps keep food-preparation surfaces safer?
A Rinse with unsafe water
B Use one cloth indefinitely
C Prepare food beside waste
D Clean and sanitize surfaces
Answer: D. Clean and sanitize surfaces. WHO’s Five Keys advise cleaning hands, surfaces, and equipment used in food preparation.
How can covered waste containers help communities?
A Attract more flies
B Increase open dumping
C Leak into nearby water
D Limit pests and exposure
Answer: D. Limit pests and exposure. Suitable covered containers help limit contact with waste and discourage pests when combined with regular, safe collection.
Why should handwashing stations be placed where people can use them?
A Keep them behind locked doors
B Make hand hygiene accessible
C Remove water and soap
D Locate them beyond safe paths
Answer: B. Make hand hygiene accessible. Convenient, accessible handwashing facilities make hygiene practices easier for diverse users.
Which action reduces contamination when dispensing stored water?
A Leave the lid off
B Use hands as a scoop
C Pour without touching the water
D Dip an unclean cup
Answer: C. Pour without touching the water. Pouring or using a clean tap avoids introducing contaminants from hands or utensils into stored water.
What makes hygiene promotion more useful to a community?
A Unverified alarming messages
B One-way messages without listening
C Clear, practical local guidance
D Instructions without facilities
Answer: C. Clear, practical local guidance. Hygiene education works best with understandable guidance, usable facilities, and attention to local needs and practices.
How can safe sanitation support gender equality?
A Restrict access to toilets
B Remove private facilities
C Increase unsafe travel
D Protect privacy and safety
Answer: D. Protect privacy and safety. Safe, private, accessible sanitation can protect dignity and safety and support equal participation in school and community life.
Why is sanitation linked to environmental health?
A Water bodies cannot be affected
B Waste stays within toilets
C Waste can contaminate ecosystems
D Treatment removes every hazard
Answer: C. Waste can contaminate ecosystems. Poorly managed waste can contaminate soil and water and affect human, animal, and ecosystem health.
What is the best role of hand hygiene during disease prevention?
A Cure established infections
B Eliminate every exposure
C Replace vaccination programs
D Interrupt transmission through hands
Answer: D. Interrupt transmission through hands. Hand hygiene helps interrupt transmission of some pathogens but works alongside other prevention and control measures.
Which WHO approach helps households remember food safety actions?
A Three Steps for Clean Homes
B Four Food Safety Levels
C Global Kitchen Rules
D Five Keys to Safer Food
Answer: D. Five Keys to Safer Food. WHO’s Five Keys summarize practical food-safety practices for consumers and food handlers.
How should household drinking water be handled after collection?
A Protect it from recontamination
B Store uncovered near waste
C Share unclean dipping cups
D Mix with untreated water
Answer: A. Protect it from recontamination. Safe collection and storage practices are needed because water can be contaminated after treatment or at the source.
What helps prevent contamination between a toilet and water source?
A Safe siting and waste management
B Discharge waste into streams
C Place latrines beside wells
D Ignore local soil conditions
Answer: A. Safe siting and waste management. Sanitation planning should consider water sources, local conditions, and safe waste management to prevent contamination.
Why should environmental health risks be monitored over time?
A Guarantee no hazard occurs
B Detect changes and guide action
C Replace community reporting
D Avoid corrective measures
Answer: B. Detect changes and guide action. Monitoring can reveal changing hazards and help authorities prioritize prevention and corrective action.
What is a core aim of hygiene and sanitation programs?
A No household responsibilities
B Hospital care for all
C Healthy, safe living environments
D Perfectly sterile communities
Answer: C. Healthy, safe living environments. Hygiene and sanitation programs aim to reduce exposure to hazards and support safe, healthy environments for everyone.
How can WASH service data guide local planning?
A Confirm every household is safe
B Identify gaps and prioritize improvements
C End water quality checks
D Replace community consultation
Answer: B. Identify gaps and prioritize improvements. Information about service access and quality helps communities identify gaps, prioritize resources, and evaluate improvements.