# Fractions? Can You Convert Them To Thousands Of An Inch?

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| By Johnbiggs
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Johnbiggs
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Most aircraft are manufactured using imperial measurements, so the younger generation require this knowledge when entering the world of Aviation. . . . . . . . . It is the aim of the quiz to kick start the mind ready for conversion and measurements. . . . . Cheers John

• 1.

### How many 'Thou' (Thousands) of an INCH are there in 1" (one Inch)  ?

• A.

100

• B.

10

• C.

1000

• D.

10000

• E.

1000000

C. 1000
Explanation
That is correct! the Single Inch is divided by 1000 equal lengths which are known as One Thousand of an Inch!!!!

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• 2.

### How many Thousands of an Inch will there be in 1/2" ?(John's Note - The use of   "     after the numeral is to indicate we are expressing the measurement in Inches - similar to how we use   mm  after a Number to illustrate millimeters........) - YES this Inch value is not an SI unit For further information see  http://www.chemie.fu-berlin.de/chemistry/general/si_en.html

• A.

125

• B.

750

• C.

144

• D.

500

• E.

5000

D. 500
Explanation
Spot on - If there is 1000 in a whole Inch then in Half an Inch there will be half the amount - 500 Thousands of an Inch in Half an Inch 1/2"

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• 3.

### How many Thousands of an Inch will there be in 1/8"  (one Eight of an Inch) ?

• A.

125

• B.

250

• C.

2500

• D.

88

• E.

72

A. 125
Explanation
Okey Here we go - 1000 parts of the whole Inch is now split up in to Eight Lots ......1000 divided by 8 = 125

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• 4.

### Just to test the knowledge a little further What do you think the Aviation answer to the following question will be?How many "Thou" make up a Sixteenth of an Inch - Then what do we call it when ordering up material such as Sheet Aluminium for Aircraft Skin when doing an Aircraft Structure repair or Fabrication?  (John Note - Lets think about clarity and removing the ambiguity)

• A.

62.5" (Called 62 Thou Thickness)

• B.

0.016" (Called 16 Thou Thickness)

• C.

62.5" (Called 62.5 Thou Thickness)

• D.

16" (Called 16 Thou Thickness)

• E.

0.0625" (Called 63 Thou thickness)

E. 0.0625" (Called 63 Thou thickness)
Explanation
The correct answer is 0.0625" (Called 63 Thou thickness). In aviation, when ordering sheet aluminum for aircraft skin during repair or fabrication, a Sixteenth of an Inch is commonly referred to as "Thou" or "Thousandths of an Inch". Therefore, 0.0625" would be called 63 Thou thickness, as it is equivalent to 63 Thousandths of an Inch.

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• 5.

### Finally -------- How many Thousands of an Inch  are there in one Sixty Fourth  ( 1/64 " ) ?(John Note - Remember from the view of Aircraft Maintenance Engineering )

• A.

0.015" (Called 15 Thou Thickness)

• B.

62.5" (Called 16 Thou Thickness)

• C.

0.016" (Called 16 Thou Thickness)

• D.

15" (Called 15 Thou Thickness)

• E.

0.015625" (Called 16 Thou Thickness)

E. 0.015625" (Called 16 Thou Thickness)
Explanation
The correct answer is 0.015625" (Called 16 Thou Thickness). This is because one Sixty Fourth (1/64") is equal to 0.015625". In the context of Aircraft Maintenance Engineering, this measurement is commonly referred to as 16 Thou Thickness.

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• 6.

### To describe 1.125" in words it would be ?

• A.

One Eigth

• B.

One and One Sixty Fourth

• C.

One and One Thirty Second

• D.

One Thirty Second

• E.

One and One Eigth

E. One and One Eigth
Explanation
The correct answer is "One and One Eighth." This is because 1.125" can be expressed as one whole unit (1) and one eighth (1/8).

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• Current Version
• Mar 21, 2023
Quiz Edited by
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• Dec 15, 2009
Quiz Created by
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