# Air observers' navigation school mathematics examination

### Title

Air observers' navigation school mathematics examination

### Description

Time allowed one hour. Contains five mathematics questions with question 4 deleted and substituted.

### Creator

### Date

1939-12-22

### Temporal Coverage

### Coverage

### Language

### Format

Two printed documents

### Publisher

IBCC Digital Archive

### Rights

This content is available under a CC BY-NC 4.0 International license (Creative Commons Attribution-NonCommercial 4.0). It has been published ‘as is’ and may contain inaccuracies or culturally inappropriate references that do not necessarily reflect the official policy or position of the University of Lincoln or the International Bomber Command Centre. For more information, visit https://creativecommons.org/licenses/by-nc/4.0/ and https://ibccdigitalarchive.lincoln.ac.uk/omeka/legal.

### Contributor

### Identifier

MHudsonJD173116-151001-020008, MHudsonJD173116-151001-020007

### Transcription

CENTRAL EXAMINATION BOARD, ROYAL AIR FORCE.

AIR OBSERVERS’ EXAMINATION. (MID-TERM). 22nd. December, 1939.

AIR OBSERVERS’ NAVIGATION SCHOOL, PRESTWICK A.

[underlined] MATHEMATICS. [/underlined]

READ all QUESTIONS and INSTRUCTIONS CAREFULLY before commencing to answer, and give concise answers, tabulated where possible.

Total Marks – 100. Time allowed – 1 hour.

(FOUR questions ONLY to be answered. All questions carry equal marks)

1. If a = 1, b = -2, c = 3, d = -4, find the value of

[equation]

2. Plot the graph of [equation] , and [equation], obtaining at least five points on each graph. Find the coordinates of the point where they meet.

3. Solve the following equations:-

(i) [equation]

(ii) [equation]

4. [deleted] A and B are two points in the same horizontal plane and in the same straight line with the foot of a tower, CD. From B, the elevation of the top, C, of the tower is 230; from A it is 390. Find the height of the tower, and its distance from A. [/deleted]

5. Under a head H feet of water, a pipe L yards long and d inches in diameter will deliver g gallons of water per minute.

[equation]

Find the supply delivered by a pipe 152 yards long, and 1 1/4 inch in diameter, under a head of 8 feet.

[page break]

CENTRAL EXAMINATION BOARD, ROYAL AIR FORCE.

AIR OBSERVERS’ MID-TERM EXAMINATION. 22nd. December, 1939.

AIR OBSERVERS’ NAVIGATION SCHOOL, PRESTWICK A.

[underlined] MATHEMATICS. [/underlined]

[underlined] AMENDMENT. [/underlined]

DELETE QUESTION NO 4 AND SUBSTITUTE THE FOLLOWING:-

4. A and B are two points in the same horizontal plane and in the same straight line with the foot of a tower, CD. The distance between A and B is 100 feet. From B, the elevation of the top, C, of the tower is 230; from A it is 390. Find the height of the tower, and its distance from A.

AIR OBSERVERS’ EXAMINATION. (MID-TERM). 22nd. December, 1939.

AIR OBSERVERS’ NAVIGATION SCHOOL, PRESTWICK A.

[underlined] MATHEMATICS. [/underlined]

READ all QUESTIONS and INSTRUCTIONS CAREFULLY before commencing to answer, and give concise answers, tabulated where possible.

Total Marks – 100. Time allowed – 1 hour.

(FOUR questions ONLY to be answered. All questions carry equal marks)

1. If a = 1, b = -2, c = 3, d = -4, find the value of

[equation]

2. Plot the graph of [equation] , and [equation], obtaining at least five points on each graph. Find the coordinates of the point where they meet.

3. Solve the following equations:-

(i) [equation]

(ii) [equation]

4. [deleted] A and B are two points in the same horizontal plane and in the same straight line with the foot of a tower, CD. From B, the elevation of the top, C, of the tower is 230; from A it is 390. Find the height of the tower, and its distance from A. [/deleted]

5. Under a head H feet of water, a pipe L yards long and d inches in diameter will deliver g gallons of water per minute.

[equation]

Find the supply delivered by a pipe 152 yards long, and 1 1/4 inch in diameter, under a head of 8 feet.

[page break]

CENTRAL EXAMINATION BOARD, ROYAL AIR FORCE.

AIR OBSERVERS’ MID-TERM EXAMINATION. 22nd. December, 1939.

AIR OBSERVERS’ NAVIGATION SCHOOL, PRESTWICK A.

[underlined] MATHEMATICS. [/underlined]

[underlined] AMENDMENT. [/underlined]

DELETE QUESTION NO 4 AND SUBSTITUTE THE FOLLOWING:-

4. A and B are two points in the same horizontal plane and in the same straight line with the foot of a tower, CD. The distance between A and B is 100 feet. From B, the elevation of the top, C, of the tower is 230; from A it is 390. Find the height of the tower, and its distance from A.

### Citation

Great Britain. Royal Air Force, “Air observers' navigation school mathematics examination,”

*IBCC Digital Archive*, accessed October 25, 2021, https://ibccdigitalarchive.lincoln.ac.uk/omeka/collections/document/10929.## Item Relations

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