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NVG > Night Vision Goggles > Flashcards

Night Vision Goggles Flashcards

1
Q

Light enters the eye through the

a) Pupil.

b) Cornea.

c) Lens.

A

B) Cornea.

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2
Q

The __________, located on the retina, are most efficient during low illumination.

a) Rods.

b) Cones.

c) Receptors.

A

A) Rods.

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3
Q

The retinal blind spot

a) Only occurs at night.

b) Only occurs during daylight hours.

c) Occurs during day or night conditions.

A

C) Occurs during day or night conditions.

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4
Q

Day and night retinal blind spots are overcome by

a) The use of sunglasses.

b) The use of night vision goggles.

c) A disciplined scan.

A

C) A disciplined scan.

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5
Q

Some common visual deficiencies include

a) Presbyopia and myopia.

b) Hyperopia and astigmatism.

c) All are correct.

A

C) All are correct.

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6
Q

Which common visual deficiency is due to the natural aging process that causes the lens of the eye to lose elasticity making it difficult to focus on near objects?

a) Hyperopia.

b) Astigmatism.

c) Presbyopia.

A

C) Presbyopia.

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7
Q

Myopia is also referred to as

a) Far sightedness.

b) Near sightedness.

c) Presbyopia.

A

B) Near sightedness.

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8
Q

Hyperopia is also referred to as

a) Far sightedness.

b) Near sightedness.

c) Presbyopia.

A

A) Far sightedness.

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9
Q

The time required for the eyes to adapt to darkness is

a) 30-45 minutes under minimal lighting conditions.

b) Only 5 minutes; 10 minutes for persons that smoke.

c) 120 minutes.

A

A) 30-45 minutes under minimal lighting conditions.

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10
Q

Factors that affect dark adaptation include

a) Drugs and fatigue (exhaustion).

b) Alcohol and tobacco.

c) All are correct.

A

C) All are correct.

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11
Q

Hovering over tall grass or water can lead to

a) Motion parallax.

b) Relative motion illusion.

c) Linear perspective.

A

B) Relative motion illusion.

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12
Q

Autokinetic illusion is

a) The illusion that a single stationary light begins to move after it has been stared at.

b) The result of confusing ground lights for stars.

c) The illusion of flickering lights, such as sunlight through the rotating blades.

A

A) The illusion that a single stationary light begins to move after it has been stared at.

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13
Q

Relative motion illusion is

a) Motion between you and another object.

b) Confusion as to who is moving.

c) All are correct.

A

C) All are correct.

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14
Q

Spatial disorientation may be induced by

a) Aircraft bank greater than 30°.

b) A scan technique that is too rapid.

c) All are correct.

A

C) All are correct.

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15
Q

The field of view when using the ANVIS 9 (F4949) goggle is

a) 35°.

b) 40°.

c) 15°.

A

B) 40°.

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16
Q

Night vision goggles magnify images
a) 2:1.
b) 2.5:1.
c) 1:1, no magnification

A

C) 1:1, no magnification

17
Q

Batteries authorized for use with the ITT F4949 night vision goggles are

a) AA lithium.

b) NiCad.

c) AA alkaline.

A

C) AA alkaline.

18
Q

Where is the low battery indicator light located?

a) On NVG visor (helmet) mount.

b) On pivot adjustment shelf.

c) Low profile battery pack

A

A) On NVG visor (helmet) mount.

19
Q

When does the low battery light illuminate?

a) When there is approximately 20 minutes of power remaining.

b) When there is approximately 1 hour of power remaining.

c) When there is approximately 30 minutes of power remaining.

A

C) When there is approximately 30 minutes of power remaining.

20
Q

What deficiencies are an immediate cause for discontinued use of the goggles?

a) Edge glow and shading.

b) Flickering, flashing, and/or intermittent operation.

c) All or correct.

A

C) All or correct.

21
Q

Fixed pattern noise (honeycomb) is an acceptable deficiency.

a) True.

b) False.

A

A) True.

22
Q

Fixed pattern noise (honeycomb) is most noticeable during

a) High lighting conditions.

b) Anytime.

c) Low lighting conditions.

A

A) High lighting conditions.

23
Q

To clean the gold contacts on the NVG mount assembly and the binocular assembly

a) Use a clean, dry cloth.

b) Use a damp cloth.

c) Use a pencil eraser.

A

C) Use a pencil eraser.

24
Q

To clean the binocular assembly lenses, use only

a) A lint free cloth.

b) Lens paper or a lens pen.

c) A pencil eraser.

A

B) Lens paper or a lens pen.

25
Q

To prevent inadvertently entering restricted visibility conditions, you should occasionally look underneath or around the NVGs.

a) True.

b) False.

A

A) True.

26
Q

When utilizing the NVGs, a primary sign of increasing atmospheric moisture

a) Is an increased halo effect.

b) Is scintillation.

c) Are emission points in one or both tubes.

A

A) Is an increased halo effect.

27
Q

Visual recognition cues at night, when using NVGs, include

a) Object size and shape.

b) Contrast.

c) All are correct.

A

C) All are correct.

28
Q

Some LED lights in use on towers/antennas and for airport/heliport lightings may not be visible through NVGs.

a) True.

b) False.

A

A) True.

29
Q

The following instrument/equipment must be operational when utilizing NVGs.

a) Clock.

b) Garmin GPS.

c) Radar altimeter.

A

C) Radar altimeter.

30
Q

What callout should be made if the medical personnel’s goggles fail?

a) Hey, I can’t see anything.

b) Goggle failure.

c) Goggles aren’t working.

A

B) Goggle failure.

31
Q

How many hours can a pilot fly under NVGs during any 12 hour shift?

a) 6.

b) 7.

c) 8.

A

A) 6.

32
Q

For a pilot to be NVG current, they must complete 6 night vision goggle operations within

a) The preceding 180 days.

b) The preceding 2 calendar months.

c) The preceding 12 calendar months; may be completed in conjunction with the annual HNVGO proficiency check.

A

B) The preceding 2 calendar months.

33
Q

For medical personnel to be NVG current, they must complete 3 night vision goggle operations within

a) The preceding 90 days.

b) The preceding 120 days.

c) The preceding 180 days.

A

C) The preceding 180 days.

34
Q

Weather minimums for the utilization of NVGs is/are

a) Primary 1500/5, or alternate 1000/3 if applicable.

b) 1000/3.

c) 500/1.

A

A) Primary 1500/5, or alternate 1000/3 if applicable.

35
Q

When conducting a high reconnaissance at night for an unimproved landing area, the pilot is required to descend to 300 feet AGL.

a) True.

b) False.

A

B) False.

36
Q

One qualified and current medical personnel is required to be actively utilizing the NVGs when arriving to, or departing from, an unimproved area.

a) True.

b) False.

A

a) True.

37
Q

Except for takeoff, landing, and high reconnaissance, pilots will maintain a minimum altitude of __________ or higher for HNVGO flights.

a) 1000’ AGL.

b) 500’ AGL.

c) 300’ AGL.

A

B) 500’ AGL.

38
Q

During an IIMC event, a pilot should continue to fly with the aid of the NVGs until the IIMC recovery is complete.

a) True.

b) False.

A

B) False

NVG (1 decks)

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