Air observers' navigation school mathematics examination

Air observers' navigation school mathematics examination

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

1939-12-22

Two printed documents

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MHudsonJD173116-151001-020008, MHudsonJD173116-151001-020007

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.