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WorksheetsHealth Hazards Quiz
Total questions: 13
Worksheet time: 7mins
Which of the following is NOT a physical form of chemical hazards?
Dust
Fumes
Gas
Electricity
Which physical form of chemical hazards is typically associated with very fine particles suspended in the air?
Mist
Dust
Vapour
Liquid
What is a fume as described in the learning material?
Large metallic particles formed during the cooling of molten metal
Very small metallic particles formed when material from a volatile solid condenses in cool air
Gaseous particles formed during the heating of solid materials
Solid particles that do not react with air
What can happen if noise is left uncontrolled?
It can improve concentration
It can have significant health effects
It can reduce stress levels
It can enhance productivity
What does the term "frequency" refer to in the context of noise terminology?
The number of wave fronts passing a given point in one second
The loudness of a sound measured in decibels
The time it takes for a wave to complete one cycle
The distance between two wave peaks
Where does sensory-neural (nerve deafness) occur?
In the outer ear.
In the middle ear.
In the inner ear, involving nerve hairs in the cochlea dying and a loss of fluid in the cochlea.
In the brain's auditory cortex.
What is acute acoustic trauma?
A condition caused by a viral infection in the ear
A condition caused by loud noise that affects the middle ear
A genetic disorder that leads to hearing loss
A temporary condition caused by water entering the ear
What is the role of acoustic absorption as shown in the diagram?
To increase the intensity of sound waves
To reflect sound waves back into the room
To reduce the amount of reflected sound in the workplace
To create echoes in the workplace
How does the segregation of noisy operations benefit the workplace?
It increases the productivity of the noisy machine
It reduces noise exposure for workers, improving their working conditions
It allows workers to communicate more effectively with the machine
It eliminates the need for acoustic absorption
Which of the following is an example of PPE used for noise control?
Safety goggles
Earplugs and ear defenders
Steel-toed boots
High-visibility vests
What is the primary cause of conductive hearing loss?
Damage to the inner ear structures.
Exposure to loud noises over time.
Blockage in the ear canal or problems with the middle ear.
Genetic factors affecting the auditory nerve.
Which of the following is a common symptom of noise-induced hearing loss?
Ringing in the ears (tinnitus)
Persistent ear infections
Increased sensitivity to sound
Fluid drainage from the ear
What is the purpose of using sound level meters in the workplace?
To eliminate background noise
To measure the frequency of sound waves
To assess the loudness of noise and ensure it is within safe limits
To amplify sound for better hearing
