Module01-mathematic

Module01-mathematic - EASA PART-66 QUESTIONS

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Module 01, Mathematics. 1.1 Arithmetic. Question Number. 1. A car travels 24 miles in 45 minutes. What is its average speed? Option A. 32 mph. Option B. 36 mph. Option C. 18 mph. Correct Answer is. 32 mph. Explanation. 45 minutes = 3/4 hour. Speed = distance / time = 24/3/4 = 24 * 4/3 = 32. Question Number. 2. Evaluate. Yes Option A. 4 ½. Option B. 3 ½. Option C. 4. Correct Answer is. 3 ½. Explanation. Question Number. 3. 15.4/2 - 2*(6.2 - 15.6). Option A. 11.1. Option B. 26.5. Option C. -11.1.

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Correct Answer is. 26.5. Explanation. 7.7-2(-9.4)7.7-(-18.8)7.7 + 18.8= 26.5. Question Number. 4. A cuboid has dimensions of 4 cm, 6 cm and 12 cm. What is its volume?. Option A. 0.028 m 3 . Option B. 2.88 m 3 . Option C. 0.000288 m 3 . Correct Answer is. 2.88 m 3 . Explanation. 4 * 6 * 12 = 288, then convert the cm to metres (divide 288 by 100, 3 times). Question Number. 5. What is a scalene triange?. Option A. 2 sides unequal. Option B. All 3 sides unequal. Option C. 2 sides equal. Correct Answer is. All 3 sides unequal. Explanation. Question Number. 6. Work out the following sum: 4 {2 (5-1) -3} + 8. Option A. 28 Option B. 37. Option C. 54. Correct Answer is. 28 Explanation. Start at the inner brackets first, and then work outwards. Question Number. 7. A rectangle is 11cm x 120cm. What is its area in m 2 ?. Option A. 0.132. Option B. 1320.
Option C. 13.2. Correct Answer is. 0.132. Explanation. 100cm in 1m, so divide 1320 by 100 twice (since it is area). Question Number. 8. The surface area of a cone whose height is 10 cm and diameter is 8 cm is. Option A. 40π cm 2 . Option B. 120π cm 2 . Option C. 80π cm2. Correct Answer is. 40π cm 2 . Explanation. Surface area of a cone = π * r * l = π x 8/2 * 10 = 40π. Question Number. 9. 4 3/8 – 2 1/4 + 1/8 =. Option A. 2.25 Option B. 2.5. Option C. 2 1/8 Correct Answer is. 2 1/4 Explanation. Work out the whole numbers separate to the fractions.Remember that 1/4 is 2/8. Question Number. 10. 11/16 + 5/8 =. Option A. 55/128. Option B. 21/16. Option C. 10/11. Correct Answer is. 21/16. Explanation. 5/8 = 10/16. 11/16 + 10/16 = 21/16. Question Number. 11. 3/4 multiplied by 0.82 is equal to. Option A. 1.23.

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Option B. 0.615. Option C. 2.46. Correct Answer is. 0.615. Explanation. 3/4 = 0.75. Approximate, 0.8 * 0.75 must be less than 0.75. Question Number. 12. 7/6 can be expressed as. Option A. 1.166. Option B. 2.6. Option C. 1.6. Correct Answer is. 1.166. Explanation. 6/6 would be 1. So 7/6 is just slightly bigger than 1. Question Number. 13. The ratio of 6:5 can be expressed as. Option A. 24:20. Option B. 20:25. Option C. 10:16. Correct Answer is. 24:20. Explanation. 6:5, multiply each by 4. Question Number. 14. 14 3 can be expressed as. Option A. 14 * 14 * 14. Option B. 14 x 3 . Option C. 14 + 14 + 14. Correct Answer is. 14 * 14 * 14. Explanation. Power' means the number 'times' itself. Question Number. 15. 0.0000413 can be written as.
Option A. 0.413 x 10 -7. Option B. 413 x 10 -7. Option C. 4.13 x 10 -7. Correct Answer is. 413 x 10 -7. Explanation. 10 -7 means move the decimal place 7 places to the left. Try it on each answer and see what comes out. Question Number. 16. 5/8 + 3/4 =. Option A. 11/4. Option B. 8/8. Option C. 11/8. Correct Answer is. 11/8. Explanation. 5/8 + 3/4 = 5/8 + 6/8 (LCD = 8) = 11/8.

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