NVG Flashcards

1
Q

Describe anvis

A

The equipment is a precision electro-optical instrument

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2
Q

Anvis is a passive light amplification system that intensifies light how much?

A

6000 times

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3
Q

The object lense is what class

A

Class b

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4
Q

Whats the best visiual acuity attainable with the anvis 9

A

Between 20/20 and 20/25

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5
Q

Will anvis correct for astigmatism

A

No

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6
Q

Do nvg’s magnify?

A

No 1:1

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7
Q

Anvis field of view

A

40°

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8
Q

Anvis break away capability

A

10-15g

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9
Q

What is monochromatic

A

Single color viewing, nvgs do not provide color discrimination

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10
Q

What batteries can you use

A

1.5v AA alkaline or lithium but do not mix. Do not use rechargeable

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11
Q

Whats the life of 2 alkaline batteries

A

50 to 55hr

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12
Q

What can you clean the goggles with

A

Lense paper or lense brush

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13
Q

Max counter weight amount

A

Do not exceed 22oz, weight above 5.5 is discouraged

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14
Q

Main monocular components

A

A. Objective lense
B. Image intensifier
C. Eyepiece lense

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15
Q

Image intensifier components

A
A. Photocathode
B. Microchannel plate
C. Phosphor screen
D. Power supply
E. Fiber optic inverter
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16
Q

What percentage of people in the army are stupid?

A

60%

17
Q

Objective lense-

A

An optical element that gathers light and can be focused for the distance of an object

18
Q

Image intensifier-

A

An electro optical device that detects and amplifies light to produce a visual image

19
Q

Photocathode-

A

Converts incoming light energy (photons) into electrical energy (electrons)

20
Q

Microchannel plate-

A

A thin wafer that increases the number and velocity of electrons

21
Q

Phosphor screen-

A

Converts electrons to photons

22
Q

Power supply function-

A

Provides power(obvi) also provides automatic brightness control and bright source protection

23
Q

Fiber optic inverter-

A

A bundle of microscopic light transmitting fibers twisted 180°

24
Q

Eyepiece lense-

A

Focus the image from the fiber optic inverter onto the eye

25
Q

How much batteey time is left when low battery laight illuminates

A

Approximately 30 minutes

26
Q

What are the possible visual deficiencies of the anvis

A
Shading
Edge glow
Flashing/flickering
Black/bright spots
Chicken wire
Honeycomb
27
Q

Anvis must be inspected

A

180 days

28
Q

What is a goggle operation

A

Anything 1hr after sunset 1hr before sunrise that uses goggles in an aircraft thats approved for those operations.

29
Q

Nvg recency operating experience (time)

A

A pic can carry passengers if theyve completed the required tasks within the 2 months preceding the month of the flight
You may act as pic if youve completed the tasks with the preceding 4 months

30
Q

61.57 nvg operating experience tasks

A
3 take off and landings
3 hovering tasks
3 departures and arrivials
3 transitions 
6 operations
135 operators are required to do this in same category, class, type
31
Q

A050 aircraft visual inspection and operational check

A

Inspect-
Windows for cleanliness
All instruments and panels
All internal and external lights

Required within preceding 60 days

32
Q

Nvg weather mins in class g

A

Non mountainous
Local-800/3 cc-1000/3
Mountainous
Local-1000/3 cc-1000/5