EASA Part 66 : Digital Question2
Question Number. 25. The octal number 1001 expressed as a decimal is. Option A. 713. Option B. 613. Option C. 513.
Correct Answer is. 513. Explanation. NIL.
Question Number. 3. The octal number 1001 expressed as a decimal is. Option A. 9. Option B. 65. Option C. 513.
Correct Answer is. 513. Explanation. NIL.
Question Number. 47. What is the hexadecimal number AE5 in octal form?. Option A. 5445. Option B. 5340. Option C. 5345.
Correct Answer is. 5345. Explanation. NIL.
Question Number. 32. 84 decimal in hexadecimal is. Option A. 5f. Option B. f4. Option C. 54.
Correct Answer is. 54. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 132.
Question Number. 16. Convert 2C hex to octal. Option A. 35. Option B. 44. Option C. 54.
Correct Answer is. 54. Explanation. NIL.
Question Number. 23. Binary addition of 1101 + 101101 is. Option A. 58. Option B. 70. Option C. 61.
Correct Answer is. 58. Explanation. NIL.
Question Number. 19. The binary coded decimal number 10011000 expressed as a decimal number is. Option A. 1528. Option B. 9810. Option C. 1522.
Correct Answer is. 9810. Explanation. NIL.
Question Number. 27. The binary number 1010100011100101 Base2 in hexadecimal is. Option A. 22BC Base 16. Option B. FFFF Base 16. Option C. A8E5 Base 16.
Correct Answer is. A8E5 Base 16. Explanation. NIL.
Question Number. 46. What is a Grays converter?. Option A. Analogue to Analogue. Option B. Analogue to Digital. Option C. Digital to Analogue.
Correct Answer is. Analogue to Digital. Explanation. NIL.
Question Number. 35. What systems uses base 10?. Option A. Octal. Option B. Binary. Option C. Decimal.
Correct Answer is. Decimal. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 128.
Question Number. 40. What is used for the power of 10?. Option A. Digital. Option B. Octal. Option C. Decimal.
Correct Answer is. Decimal. Explanation. Decimal is a power of 10 counting system.
Question Number. 13. Convert decimal 15 into hexadecimal. Option A. G. Option B. E. Option C. F.
Correct Answer is. F. Explanation. NIL.
Question Number. 31. 2D in decimal is. Option A. 43. Option B. 45. Option C. 41.
Correct Answer is. 45. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 132.
Question Number. 51. 101012 + 110012 =. Option A. 462. Option B. 468. Option C. 4610.
Correct Answer is. 4610. Explanation. 101012 + 110012 = 1011102 = 4610.
Question Number. 22. Binary Number: 110010 is. Option A. 80. Option B. 50. Option C. 34.
Correct Answer is. 50. Explanation. NIL.
Question Number. 9. Convert the binary number 110010 to decimal. Option A. 80. Option B. 50. Option C. 34.
Correct Answer is. 50. Explanation. NIL.
Question Number. 18. 1012 converted to decimal is. Option A. 52. Option B. 210. Option C. 510.
Correct Answer is. 510. Explanation. NIL.
Question Number. 50. What is the binary notation for 29?. Option A. 0001 0110. Option B. 0010 1001. Option C. 0001 1101.
Correct Answer is. 0001 1101. Explanation. Despite the deliberate gap between the blocks of 4 digits, this is not a BCD question.
Question Number. 34. Decimal 10 converted to binary is. Option A. 1111. Option B. 1001. Option C. 1010.
Correct Answer is. 1010. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 128.
Question Number. 14. What is 345 in binary?. Option A. 100111001. Option B. 110011001. Option C. 101011001.
Correct Answer is. 101011001. Explanation. NIL.
Question Number. 4. What is 345 in binary?. Option A. 100111001. Option B. 101011001. Option C. 110011001.
Correct Answer is. 101011001. Explanation. NIL.
Question Number. 48. Hexadecimal 5C is what in binary?. Option A. 1011111. Option B. 1011100. Option C. 1110100.
Correct Answer is. 1011100. Explanation. NIL.
Question Number. 39. What is 11000012 - 1011002?. Option A. 10001101 Base 2. Option B. 110111 Base 2. Option C. 110101 Base 2.
Correct Answer is. 110101 Base 2. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 1129.
Question Number. 43. An octal format hexadecimal number 3F written as binary would be. Option A. 110 111. Option B. 111 111. Option C. 101 011.
Correct Answer is. 111 111. Explanation. NIL.
Question Number. 20. The decimal number 7 expressed as a binary number is. Option A. 101 Base 2. Option B. 111 Base 2. Option C. 7 Base 2.
Correct Answer is. 111 Base 2. Explanation. NIL.
Question Number. 15. Convert 1D to binary. Option A. 11101. Option B. 29. Option C. 101001.
Correct Answer is. 11101. Explanation. NIL.
Question Number. 11. Convert decimal 15 into binary. Option A. 1111. Option B. 1101. Option C. 1110.
Correct Answer is. 1111. Explanation. NIL.
Question Number. 38. What is the Hexadecimal number F86 in Binary?. Option A. 111110000001. Option B. 3974. Option C. 111110000110.
Correct Answer is. 111110000110. Explanation. Convert it to Decimal first (15 x 256 + 8 x 16 + 6 x 1) = 3974. Since it is an even number, it must be the answer with a zero on the end.
Question Number. 44. What is f86 hex when converted to binary?. Option A. 1000010000110. Option B. 111110000110. Option C. 100000000000.
Correct Answer is. 111110000110. Explanation. NIL.
Question Number. 6. Convert the binary word 1100 to decimal. Option A. 11. Option B. 16. Option C. 12.
Correct Answer is. 12. Explanation. NIL.
Question Number. 10. Convert the hexadecimal number D into decimal. Option A. 13. Option B. 15. Option C. 14.
Correct Answer is. 13. Explanation. NIL.
Question Number. 8. Convert the binary word 1110 to decimal. Option A. 12. Option B. 14. Option C. 15.
Correct Answer is. 14. Explanation. NIL.
Question Number. 17. A hexadecimal is a number to base. Option A. 2. Option B. 16. Option C. 8.
Correct Answer is. 16. Explanation. NIL.
Question Number. 42. What is octal 33 in hexadecimal?. Option A. 1b. Option B. 11. Option C. 22.
Correct Answer is. 1b. Explanation. Octal 33 = (3 * 8) + (3 * 1) = 27 decimal. 27 = (1 * 16) + (11 * 1) = 1b (b = 11).
Question Number. 2. The binary number 11010111 expressed as a decimal is. Option A. 215. Option B. 223. Option C. 207.
Correct Answer is. 215. Explanation. NIL.
Question Number. 24. The binary number 11010111 is expressed as a decimal is. Option A. 107. Option B. 215. Option C. 53.
Correct Answer is. 215. Explanation. NIL.
Question Number. 33. 16 hexadecimal converted to decimal is equivalent to. Option A. 48. Option B. 38. Option C. 22.
Correct Answer is. 22. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 132.
Question Number. 12. Convert 448 to hex. Option A. 22 Base16. Option B. 36 Base16. Option C. 24 Base16.
Correct Answer is. 24 Base16. Explanation. NIL.
Question Number. 5. What is hex 110 in decimal?. Option A. 282. Option B. 272. Option C. 32.
Correct Answer is. 272. Explanation. NIL.
Question Number. 30. What is 54 octal in hexadecimal?. Option A. 2F. Option B. 4F. Option C. 2C.
Correct Answer is. 2C. Explanation. NIL.
Question Number. 41. What is 44 in hexadecimal?. Option A. 2d. Option B. 2c. Option C. 2F.
Correct Answer is. 2c. Explanation. (2 * 16) + (12 * 1) = 44 (c = 12).
Question Number. 49. Binary 11001101 converted to octal is. Option A. 12E. Option B. 315. Option C. 205.
Correct Answer is. 315. Explanation. NIL.
Question Number. 26. What is 011100001 Base2 in Octal?. Option A. 225 Base 8. Option B. 281 Base 10. Option C. 341 Base 8.
Correct Answer is. 341 Base 8. Explanation. NIL.
Question Number. 21. Convert 011101 binary to octal. Option A. 25. Option B. 35. Option C. 33.
Correct Answer is. 35. Explanation. NIL.
Question Number. 1. Convert 011101 Base2 to octal. Option A. 25. Option B. 35. Option C. 33.
Correct Answer is. 35. Explanation. The OCTAL code has 8 digits, 0 - 7. To convert binary to octal divide the binary number into groups of three starting from the right. You've got to know your binary, octal, hex and bcd conversions!.
Question Number. 36. What systems use base 16?. Option A. BCD. Option B. Octal. Option C. Hexadecimal.
Correct Answer is. Hexadecimal. Explanation. Aircraft Electricity and Electronics Eismin 5th Edition Page 132.
Question Number. 7. If a data message is made up of 1s and 0s, it is. Option A. analogue. Option B. binary. Option C. digital.
Correct Answer is. digital. Explanation. Digital is 1s and 0s, either binary or grey code.
Question Number. 37. Binary coded decimal (BCD) format has a minimum of. Option A. 2 lots of four. Option B. four. Option C. 3 lots of four.
Correct Answer is. four. Explanation. NIL.
Question Number. 28. 0011011000101001 when transferred to computer language this information can be a representation of. Option A. binary, octal or decimal numbers. Option B. hex, octal and binary numbers. Option C. hex, octal and decimal numbers.
Correct Answer is. hex, octal and decimal numbers. Explanation. Binary IS 'computer language' not a representation. Therefore any answer with 'binary' in it is wrong.
Question Number. 29. A computer message 3B4 is. Option A. Octal. Option B. binary. Option C. hexadecimal.
Correct Answer is. hexadecimal. Explanation. NIL.
Question Number. 45. In a computer, the address 3B8 is. Option A. hexadecimal. Option B. decimal. Option C. octal.
Correct Answer is. hexadecimal. Explanation. NIL.
