M9.5 Noise in the Workplace

What is the recommended maximum sound level for unprotected exposure?

• 100 dB

• 115 dB

• 130 dB

• 140 dB

What type of protection is commonly used by aircraft maintenance engineers?

• Helmets

• Ear plugs and ear defenders

• Safety goggles

• Gloves

What is a long-term effect of noise exposure?

• Temporary hearing improvement

• Permanent hearing damage

• Increased alertness

• Enhanced verbal skills

What is the effect of noise on verbal communication?

• Improves it

• Interferes with it

• Has no effect

• Enhances it

What is a common tool used to measure sound intensity?

• Thermometer

• Decibel meter

• Barometer

• Speedometer

When should hearing protection be used according to the rule of thumb?

• When music is playing

• When conversation cannot be heard clearly at two metres

• When working alone

• When it is raining

Why is it important for engineers to communicate away from noisy areas?

• To save time

• To avoid miscommunication

• To enjoy the view

• To relax

What is the primary purpose of using ear defenders?

• To enhance sound quality

• To improve concentration

• To protect against loud noises

• To communicate better

Which of the following is a sign of potential hearing damage?

• Enhanced speech recognition

• Clearer hearing

• Ringing in the ears

• Improved balance

What is a common method to reduce noise exposure in the workplace?

• Increasing volume

• Using soundproof barriers

• Removing all machinery

• Ignoring the noise