bus?. Option A. To act as a terminal gap in an emergency. Option B. To delay the signal. Option C. To check for corruption during transmission of a word. Correct Answer is. To check for corruption during transmission of a word. Explanation. NIL. Question Number. 20. An ARINC 429 word label format is. Option A. hexadecimal. Option B. octal. Option C. binary. Correct Answer is. octal. Explanation. NIL. Question Number. 21. How many LRUs can be connected to an ARINC 429 data bus?. Option A. 120. Option B. 60. Option C. 20. Correct Answer is. 20. Explanation. NIL. Question Number. 22. ARINC 629 terminal transmit interval is. Option A. common to each terminal. Option B. is when all transmissions are quiet. Option C. unique to each terminal. Correct Answer is. common to each terminal. Explanation. NIL. Question Number. 23. An ARINC 429 bus uses. Option A. a twisted shielded pair of wires. Option B. a single twin cable for each transmitter. Option C. two bi-directional twin, sheathed and earthed wires. Correct Answer is. a twisted shielded pair of wires. Explanation. NIL. Question Number. 24. 429 data bus systems uses. Option A. hexadecimal numbering. Option B. binary coded decimal. Option C. decimal numbering. Correct Answer is. binary coded decimal. Explanation. NIL. Question Number. 25. An ARINC 429 Binary Coded Decimal word
system buses into two parts for easy removal and installation. Option C. To connection of new cables to the existing ones in case of a modification. Correct Answer is. To allow maintenance personnel to divide the right and left system buses into two parts for easy removal and installation. Explanation. NIL. Question Number. 82. Where is the parity bit installed in a data word?. Option A. Front. Option B. End MSB. Option C. Middle. Correct Answer is. End MSB. Explanation. NIL. Question Number. 83. RZ bi-polar modulation consists of bits which are one of __________ states?. Option A. Eight. Option B. Two. Option C. Three. Correct Answer is. Explanation. NIL. Question Number. 84. In the ARINC 429 digital information transfer system, data may travel in:. Option A. both directions on the same bus simultaneously. Option B. one direction only. Option C. both directions on the same bus sequentially by time multiplexing. Correct Answer is. one direction only. Explanation. NIL. Question Number. 85. An ARINC 629 data word. Option A. includes an 8 bit label and a 16 bit data field. Option B. has only 20 bits. Option C. comprises up to 256 data bits. Correct Answer is. has only 20 bits. Explanation. NIL. Question Number. 86. In an ARINC 429 digital word bit number 32 is used for. Option A. terminating the data field. Option B. checking parity. Option C. identifying word type. Correct Answer is. checking parity.
Option B. Input/Output operations, Arithmetic, Logic Functions. Option C. Arithmetic, Logic, Branch and Find Operations. Correct Answer is. Input/Output operations, Arithmetic, Logic Functions. Explanation. NIL. 05.08. Integrated Circuits. Question Number. 1. What function do gates 1 and 2 perform?. Option A. Full adder. Option B. Half Adder. Option C. Shift Register. Correct Answer is. Half Explanation. NIL. Question Number. 2. On an IC, pin 1 is to the left of the notch. Which way are the pins numbered?. Option A. Left to Option B. Anticlockwise. Option C. Clockwise. Correct Answer is. Anticlockwise. Explanation. NIL. http://www.kpsec.freeuk.com/components/ic.htm Question Number. 3. When 4 binary serial counters are connected in cascade for frequency division, what division factor is required?. Option A. 8. Option B. 16. Option C. 4. Correct Answer is. 16. Explanation. Each serial counter changes its state once every 2 clock pulses. So 4 serial counters divides by 2x2x2x2 = 16. Question Number. 4. 3 binary counters in cascade. What is the division?. Option A. 32. Option B. 8. Option C. 16.