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Human factors 2
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Questions in this quiz (73)
1REM sleep can also be referred to as.
- Aparanormal sleep.
- Bslow wave sleep.
- Cparadoxical sleep.
2The presence of something damaging to ones health would be an example of a.
- Apsychological stressor.
- Breactive stressor.
- Cphysical stressor.
3Aircraft engineers can take common sense steps to maintain their fitness and health. These are known as.
- Aself-improvement measures.
- Bpositive self-improvement.
- Cpositive measures.
4The amount of stress experienced with a particular task is dependent on.
- Athe perceived demand and actual ability.
- Bthe perceived demand and perceived ability.
- Cthe actual demand and actual ability.
5Long shift work will.
- Aincrease your diagnostic and maintenance ability.
- Binitially decrease your diagnostic and maintenance ability but then you will get used to it.
- Cdecrease your diagnostic and maintenance ability
6Clinical insomnia can be caused by.
- Acaffeine.
- Bjet lag.
- Ca change of environment.
7The normal recovery for Circadian dysrhythmia is.
- Aat a rate 2.5 hours a day.
- Bat a rate 1.5 hours a day.
- Cat a rate 2 hours a day.
8When comparing noise levels on Human Performance.
- Anoise has no effect on the number of errors or the speed of performance of an individual.
- Ban individual can find noise levels annoying but still perform well indefinitely.
- Cnoise is directly proportional to the number of errors and the speed of performance of an individual.
9Environmental stresses are.
- Acaused by noise, fumes, heat and vibration.
- Btolerated by everyone equally.
- Cnot normally cumulative
10Employers must provide their employees with personal ear protectors if the noise level reaches.
- A70 dB.
- B85 dB.
- C60 dB.
11The maximum allowable noise dose is.
- A85 dB.
- Bany combination of noise and time which exceeds 90 dB TWA.
- C90 dB for 24 hours.
12Environmental capture' is a type of error possible when an engineer does the same job repeatedly.
- Abut on different types of aircraft.
- Bon the same type of aircraft.
- Cin a short timescale
13In the UK, an air-side ramp vehicle driver is most likely to go deaf in.
- Athe left ear.
- Bboth ears.
- Cthe right ear
14 Up to what proximity to an aircraft with engines running is the use of ear protection recommended for maintenance personnel?.
- A200 - 300 metres.
- B20 - 30 metres.
- C2 - 3 metres.
15Studies have shown that working outside in a temperature of 55°F will have what effect on hand dexterity?.
- AAround 50%.
- BVery slight.
- CNone.
16When working with bright lights consideration should be given to.
- Ablurred image.
- Bshadows.
- Cglare
17Which of the following is true?.
- Aaffects the standard of work proportionately with the level of the noise.
- BNoise does not affect a person's standard of work.
- CNoise does affect the standard of work with certain people.
18The effect on an engineer of environmental noise is.
- Ait improves concentration and quality of work.
- Bit decreases concentration and quality of work.
- Cit has no affect on concentration of quality of work.
19 Excess noise in a working environment can.
- Araise resistance to other stresses.
- Blower resistance to other stresses.
- Cnot affect performance.
20If the temperature is - 15°C and you are working on the line, you should.
- Arotate engineers regularly and have a supervisor keep an eye on them.
- Bcarry on regardless of the weather to keep the aircraft flying.
- Cstop all maintenance until the weather improves
21Studies have shown that working outside in a temperature of 55°F will have what effect on hand dexterity?.
- ANone.
- BAround 50% reduction.
- CVery slight reduction
22Cold stress can be influenced by.
- Ainsufficient vitamins in the diet.
- Ba drop in body temperature.
- Cthe wind chill factor.
23Environmental stresses in an extreme high temperature and noisy environment causes.
- Aattention to be disturbed and distributed.
- Bno loss of attention or distraction.
- Ctotal loss of attention
24Which of the following environments is best suited to aircraft maintenance?.
- AWorking outside, at night, in the rain.
- BWorking outside, in the direct midday sun.
- CWorking inside in a well lit, comfortable hangar.
25Intense or loud noise may lead to.
- Adeafness.
- Bfatigue.
- Cno effects.
26Facility lighting in a hangar should be.
- Ano brighter than 10 lux.
- Bprovided by fixed light units giving light to shadow ratio of 3:1.
- Cportable so that individual tasks may be well lit.
27When tasks are being designed, the maximum mass an engineer should lift is.
- A23 kg.
- B50 kg.
- C32 kg.
28Sensing and perception errors are most likely to result from.
- Adistraction of other engineers.
- Bpoor lighting or noise.
- Clack of adequate training
29Task lighting in a hangar is mainly.
- Aprovided by fixed lighting.
- Bprovided by fluorescent tubes.
- Cportable so that individual tasks may be well lit
30 When inspecting an airframe structure for small cracks, to avoid a crack being missed you should.
- Ahold the vision stationary for several seconds on each area to allow the eye to focus correctly.
- Bnot use a mirror as mirrors absorb and refract light and may obscure a crack.
- Cconstantly move the eye across and around the area of interest to avoid the crack falling into the eye's natural blind spot.
31When a person moves from a poorly lit area to a well lit area, what is the minimum time they should allow for the eyes to adapt?.
- A7 minutes.
- B7 seconds.
- C30 seconds
32Itemized checklists should be dealt with.
- Ain any order, provided all steps are completed.
- Bitem by item, in order, to cover every step diligently.
- Cas memorized.
33The main disadvantage of carrying out critical inspections under very bright artificial light is.
- Aglare.
- Bshadows.
- Cfiltered light.
34When carrying out a visual inspection, an engineer is likely to make a parallax error when.
- Ainspecting a component using a 5x or 10x magnifying glass.
- Busing precision measuring instruments such as a vernier gauge or AVO meter.
- CNothing.
35What constitutes a good work handover?.
- AA written and verbal account of the work done.
- BA written documentation of the work done.
- CA verbal account of the work done
36A good shift handover should include details of.
- Atasks that have been completed; persons who carried out the tasks; tasks to be carried out and general company and technical information.
- Btasks that have been completed; tasks in progress, their status, any problems encountered etc.; tasks to be carried out and tools required to carry out the tasks.
- Ctasks that have been completed; tasks in progress, their status, any problems encountered etc.; tasks to be carried out and general company and technical information
37A good practice for a shift handover is for shifts to be specifically rostered so there is an overlap of.
- A2 - 3 hours.
- B5 - 10 minutes.
- C20 - 30 minutes
38Asynchronous' communication includes.
- Aimmediate voice communication by radio link.
- Btechnical manuals, memos, Advisory Circulars and Airworthiness Directives.
- Cface-to-face communications.
39The most effective form of communication is.
- Averbal communication.
- Bwritten communication.
- Cexplicit communication
40What is the most important means of communication in aircraft maintenance engineering?.
- AWritten.
- BImplicit.
- CVerbal.
41If you are given a task that you are unsure of you should.
- Aconsult the appropriate approved data.
- Bask someone who has done it before.
- Cconsult type course notes
42The alerting system for an important system failure should be.
- Aan aural warning.
- Ba flashing visual signal, preferably red.
- Ca dolls-eye indicator
43The SHEL model of human factors takes into account.
- ASoftware, hardware, environment and liveware.
- BSoftware, hardware, efficiency and liveware.
- CSoftware, hardware, environment and location
44What part of the SHEL model would the writing and interpretation of maintenance manuals fit into?.
- AHardware.
- BSoftware.
- CEnvironment.
45The 'error chain' theory refers to.
- Aa chain of errors within an organizations can be investigated, and similar errors prevented by determining a common link between them.
- Ba company is only as good as its weakest employee or employees, and removal of that/those employee from the chain should prevent errors.
- Cerrors are caused by a chain of linked events, and the breaking of one link in the chain will prevent the error
46What part of the SHEL model would the aircraft design fit into?.
- ALiveware.
- BEnvironment.
- CHardware.
47Which part of the SHEL model is most difficult to protect from errors by 'designing out' or to 'work around'?.
- ALiveware.
- BEnvironment
- CSoftware.
48A violation in an aircraft maintenance procedure.
- Ais usually carried out with the best intentions from a genuine desire to 'get the job done'.
- Bis always considered an act of vandalism or sabotage.
- Cis always carried out to satisfy some personal need, often unrelated to the actual task.
49Which type of human error is easiest to correct?.
- AConstant error.
- BReversible error.
- CVariable error.
50In the 'slips, lapses and mistakes' definition of errors, forgetting to replace an engine cowling would be considered a.
- Amistake.
- Blapse.
- Cslip.
51In the 'slips, lapses and mistakes' definition of errors, a mistake would typically occur at the.
- Astorage (memory) stage.
- Bexecution stage.
- Cplanning stage.
52On a task that is complex, an engineer uses his own procedures due to pressure. This is legally termed.
- Amodification.
- Binitiative.
- Cviolation
53Visual inspection by an 'experienced' maintenance engineer is.
- Aknowledge and rule base behaviour.
- Bskill and knowledge based behaviour.
- Cskill and rule based behaviour.
54Troubleshooting is.
- Arule based.
- Bskill based.
- Cknowledge based.
55A violation is.
- Aan unintentional error.
- Ba deliberate departure from the rules.
- Can intentional act of sabotage
56A mistake is.
- Aa deliberate departure from the rules.
- Ban intentional act of sabotage.
- Can unintentional error
57Whilst working on an aircraft a spanner placed on the wing surface is kicked off and subsequently falls into an open engine cowl, breaking off a sensor connector. This is an example of.
- Aa skill based error.
- BMurphy's law.
- Ca punishable occurrence.
58An experienced engineer fits the wrong seal during a routine component change. This is.
- Askill based.
- Brule based.
- Cknowledge based
59An engineer is working on a wing and kicks a spanner off into an engine cowl and breaks a sensor. This is.
- Aknowledge based error.
- Bskill based error.
- Crule based error.
60The difference between a mistake and a violation is.
- Aa mistake is less serious than a violation.
- Ba violation is not deliberate.
- Ca mistake is unintentional and a violation is deliberate.
61An experienced engineer is fitting a valve. A required seal is not fitted. What type of error is this?.
- AKnowledge based.
- BRule based.
- CSkill based.
62The hub of the SHEL model of human factors is.
- Aliveware.
- Bhardware.
- Cenviroment.
63A type 1 visual inspection error occurs when.
- Aa faulty item is missed.
- Ba good item is incorrectly identified as faulty.
- Ca duplicate inspection is not carried out.
64What is the difference between error and violation?.
- AViolation is deliberate, error is not.
- BError is deliberate, violation is not.
- CNo difference.
65What is a latent failure?.
- AA mistake that has already been made, but has not yet caused an accident.
- BReceiving bad instruction from a manager who is out of touch with maintenance.
- CA failure which could not have been predicted
66What happens when you break the 'chain of error'?.
- AAccident happens.
- BPilot submits report within 72 hours.
- CAccident does not happen.
67If an engineer forgets to fit a seal to an engine drain plug, he or she has.
- Amade an error of commission.
- Bcommitted a violation.
- Cmade an error of omission
68An engineer is performing a task in less than ideal conditions in order to meet an operational deadline is.
- Acommitted a routine error.
- Bcommitting a situational violation.
- Cmaking a rule based slip.
69 An engineer who has developed his or her own method of performing a complex task.
- Ashould be commended for his/her resourcefulness.
- Bis performing a rule based behaviour.
- Cis violating on a regular basis
70Error tolerance in maintenance progress refers to.
- Aperformance of tasks specifically designed to identify errors during a maintenance task.
- Bability of a system to remain functional after a maintenance error.
- Cprocess of eliminating the contributing factors to error.
71Engineers often work on raised platforms, ladders etc. What dangers can this contribute to?.
- AStaging may be made of wood.
- BLadder may slip and man falls.
- CTwo workers may be carrying out maintenance on the same lift.
72 Risk assessment and management is.
- Areduction of risks to a tolerable standard and monitoring the situation.
- Bthe investigation of risks and totally removing them and the monitoring of new work practices.
- Cchoosing a cheaper supplier or manufacturer for parts
73When carrying out a risk assessment.
- Aa hard hat should be worn.
- Bit is necessary to identify where equipment/procedures might fail.
- CNothing
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- Quiz on Human factors 2, created by oriol arrufat on 04/06/2019.
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- oriol arrufat
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