Question 51-1 : Concerning flying a drone and blood alcohol content the following statement is correct ? [ Teaching piloting ]

Red light preserves night vision but severley distorts colours red ambient lighting on vision during nighttime operations prevents seeing the details accuratelyhazards associated with flying at night https tccanadacaenaviationpublicationssystem safety summer briefing kit tp 14112hazards associated flying night powerpoint presentation

In order for individual crew members to contribute as much as they can they must both meet a standard and for the most part carry out their duties in a standard mannerthe sops deal primarily with the standardization of how the crew completes their duties standardization is one of the most powerful tools available to the crew to prevent the undesirable to determine when something undesirable is occurring and to deal with the undesirable should it occurhowever a standard procedure cannot be devised to cope with all situations although the sops are to be complied with to the extent practical there may be situations where compliance with some part is inadvisableshould it be appropriate to deviate from the sops all applicable personnel shall be thoroughly briefed

90252 night flight requirements 5 no crew member shall operate the unmanned aircraft if they suffer from visual limitations related to depth perception colour blindness or visual acuity in low light conditions

Alcohol even in small amounts slows your reaction time reduced reflexes impairs your judgement narrows your field of vision increases your heart rate alcohol induced excitement

There are five phases of sleep usually when you are sleeping you begin at stage 1 and go through each stage until reaching rem sleep and then you begin the cycle againeach complete sleep cycle takes from 90 to 110 minutes your brain acts differently in each stage of sleep in some of the stages your body may make movements but in others your arms and legs will be immobilestage 1 sleep is light sleep you experience a drifting in and out of sleep you can be easily woken up your eye movement and body movements slow down you may experience sudden jerky movement of your legs or other muscles these are known as hypnic myoclonia or myoclonic jerksstage 2 around 50 percent of your time sleeping is spent in stage 2 sleep during this stage eye movement stops and your brain waves a measure of the activity level of the brain become slowerstage 3 is the first stage of deep sleep the brain waves are a combination of slow waves known as delta waves combined with faster waves during stage 3 sleep it can be very difficult to wake someone up if you are woken up during this stage you may feel groggy and disoriented for several minutesstage 4 sleep is the second stage of deep sleep in this stage the brain is making the slow delta waves almost exclusively in this stage it is also very difficult to wake someone up both stages of deep sleep are important for feeling refreshed in the morning if these stages are too short sleep will not feel satisfyingstage 5 rem rapid eye movement sleep is the sleep stage in which dreaming occurs when you enter into rem sleep your breathing becomes fast irregular and shallow your eyes will move rapidly and your muscles become immobile heart rate and blood pressure increase men may develop erections about 20 percent of sleep is rem sleep for adults