Environmental stresses are. Not normally cumulative. Tolerated by everyone equally. Caused by noise, fumes, heat and vibration.
Employers must provide their employees with personal ear protectors if the noise level reaches 85 dB. 70 dB. 60 dB..
The maximum allowable noise dose is. Any combination of noise and time which exceeds 90 dB TWA. 85 dB. 90 dB for 24 hours.
Environmental capture' is a type of error possible when an engineer does the same job repeatedly. But on different types of aircraft On the same type of aircraft. In a short timescale.
In the UK, an air-side ramp vehicle driver is most likely to go deaf in. The right ear. The left ear Both ears. .
Up to what proximity to an aircraft with engines running is the use of ear protection recommended for maintenance personnel?. 200 - 300 metres. 20 - 30 metres. 2 - 3 metres.
Studies have shown that working outside in a temperature of 55°F will have what effect on hand dexterity?. Very slight None Around 50%.
When working with bright lights consideration should be given to. Blurred image Shadows. Glare.
Which of the following is true?. Noise affects the standard of work proportionately with the level of the noise Noise does affect the standard of work with certain people. Noise does not affect a person's standard of work.
The effect on an engineer of environmental noise is. It improves concentration and quality of work. It decreases concentration and quality of work It has no affect on concentration of quality of work. .
Excess noise in a working environment can. Raise resistance to other stresses. Not affect performance. Lower resistance to other stresses. .
If the temperature is - 15°C and you are working on the line, you should. Stop all maintenance until the weather improves. Rotate engineers regularly and have a supervisor keep an eye on them. Carry on regardless of the weather to keep the aircraft flying.
Studies have shown that working outside in a temperature of 55°F will have what effect on hand dexterity?. Around 50% reduction. None. Very slight reduction.
Cold stress can be influenced by Insufficient vitamins in the diet. The wind chill factor. A drop in body temperature. .
Environmental stresses in an extreme high temperature and noisy environment causes. No loss of attention or distraction. Total loss of attention. Attention to be disturbed and distributed. .
Which of the following environments is best suited to aircraft maintenance? Working outside, at night, in the rain. Working inside in a well lit, comfortable hangar. Working outside, in the direct midday sun. .
Intense or loud noise may lead to. No effects. Working inside in a well lit, comfortable hangar. Fatigue.
Facility lighting in a hangar should be. Provided by fixed light units giving light to shadow ratio of 3:1. No brighter than 10 lux. Portable so that individual tasks may be well lit.
When tasks are being designed, the maximum mass an engineer should lift is. 50 kg 23 kg. 32 kg.
Sensing and perception errors are most likely to result from. Distraction of other engineers. Lack of adequate training Poor lighting or noise.
Task lighting in a hangar is mainly. Provided by fixed lighting.. Provided by fluorescent tubes. Portable so that individual tasks may be well lit. .
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