M-5 Digital Techniques Final Practice test [40 Question 50 Mintues]

 

Module 05. Digital Techniques

Quiz

  

1 / 40

1. Typical displays on an EHSI are?
   1.   VOR, Map, Plan and weather radar
   2.   Engine indications
   3.   VOR, Plan, Map and Attitude
2. Engine parameters are displayed on?
   1.   EHSI
   2.   ECAM
   3.   FMSCDU
3. EADI displays show ?
   1.   pitch, roll and waypoints
   2.   pitch and roll attitudes
   3.   heading and weather radar
4. The binary number 11010111 expressed as a decimal is ?
   1.   215
   2.   223
   3.   207
5. The octal number 1001 expressed as a decimal is?
   1.   65
   2.   9
   3.   513
6. What is 345 in binary?
   1.   100111001
   2.   101011001
   3.   110011001
7. The BITE indicator on a DFDR shows Yellow colour. This indicates?
   1.   power is ON and DFDR is recording data
   2.   power is OFF or DFDR is at Fault
   3.   power is ON but DFDR is not recording data
8. FMS CDU warnings are ?
   1.   OFST and Fail
   2.   MSG, fail and OFST
   3.   Fail and MSG
9. What warnings can an FMS provide?
   1.   Spurious faults
   2.   Ground faults only
   3.   Discrete warnings
10. The Flight data recorder starts recording?
    1.   after the first engine has started
    2.   on aircraft roll out from stand
    3.   after the first engine has started
11. An Inertial Navigation System (INS/IRS) computes distance from acceleration by?
    1.   two successive integrations
    2.   a simple integration
    3.   a differentiation followed by an integration
12. The accepted error from INS/IRS is?
    1.   2 miles per hour + 3 miles
    2.   3 miles / hour + 3 miles
    3.   1 mile/hour+3 miles
13. Fly-by-wire load alleviation function in turbulent conditions will result in?
    1.   spoilers moving symmetrically upwards
    2.   ailerons moving symmetrically upwards
    3.   ailerons and spoilers moving symmetrically upwards
14. IRS accelerometers are mounted ?
    1.   60° to each other
    2.   45° to each other
    3.   90° to each other
15. An FMS databank memory is updated ?
    1.   every 365 days
    2.   every 28 days
    3.   every 32 days
16. MFD is the abbreviation for?
    1.   Mandatory flight display
    2.   Multi function display
    3.   Master flight display
17. Which of the following could be a primary cause of HIRF protection failure ?
    1.   Broken or missing static wicks
    2.   Corrosion on bonding leads
    3.   Unserviceable radio filters
18. Who is responsible for producing the operational program of the FMS?
    1.   The pilot
    2.   The manufacturer
    3.   The engineer
19. Electrostatic discharge occurs when?
    1.   the ground lead on a wrist strap touches the skin
    2.   materials are rubbed together or pulled apart
    3.   materials of different potential are brought in close proximity to each other
20. During an EFIS screen fit ?
    1.   no tooling is required
    2.   dont touch terminals
    3.   use bonding strap
21. A seven segment display is used to?
    1.   display octal and decimal numbers only
    2.   display octal and binary numbers only
    3.   display alpha-numeric characters
22. What are the advantages of an LCD display over an LED ?
    1.   There are no advantages
    2.   It is brighter
    3.   It uses less current
23. An LCD display?
    1.   is monochrome
    2.   has three colours only
    3.   has infinite colours
24. To display a circle on a CRT you use?
    1.   2 sine waves 90 degrees out of phase
    2.   2 sine waves 180 degrees out of phase
    3.   2 square wave 90 degrees out of phase
25. An LED display is?
    1.   high definition
    2.   red and green
    3.   monochrome only
26. Magnetic deflection in a CRT is achieved by?
    1.   a sawtooth waveform
    2.   a trapezoidal waveform
    3.   a sinusoidal voltage
27. When using a TDR (time delay reflectometer) the loss value of the cable is ?
    1.   shown by the curve on the screen
    2.   set on the TDR
    3.   allowed for in the calculation
28. Fibreoptic systems can transmit data in?
    1.   in two directions
    2.   one direction only
    3.   both directions at the same time
29. A fibreoptic data bus?
    1.   can transmit several messages simultaneously
    2.   is only used for non essential messages
    3.   can only transmit 1 message at a time
30. Light travels along a fibre optic by?
    1.   refraction
    2.   dispersion
    3.   reflection
31. An 8 data input multiplexer has how many Data Select lines ?
    1.   2
    2.   3
    3.   8
32. A 12 bit 16 Channel encoder will use a multiplexer with?
    1.   3 bit parallel address line
    2.   2 wire series address line
    3.   4 bit parallel address line
33. The pins on an op amp are numbered ?
    1.   anticlockwise
    2.   clockwise
    3.   cross ways
34. Data is converted from serial to parallel and parallel to serial by ?
    1.   a synchronous counter
    2.   a parallel register
    3.   a shift register
35. An encoder changes ?
    1.   analogue to digital
    2.   data from one format to another
    3.   digital to analogue
36. On an IC, pin 1 is to the left of the notch. Which way are the pins numbered ?
    1.   Anticlockwise
    2.   Clockwise
    3.   Left to right
37. An ARINC 629 bus cable is a twisted pair of wires with ?
    1.   a 130 ohm resistor at both ends
    2.   a 130 ohm resistor at one end
    3.   a 230 ohm resistor at one end
38. The ARINC 429 low rate of transmission is?
    1.   100 kbits/second with high of 12-14 Mbits/second
    2.   12-14 Mbits/second with high of 100 Mbits/secon
    3.   12-14 Kbits/second with high of 100 kBits/second
39. What system uses base 8?
    1.   ARINC 629
    2.   ARINC 429, in dataword labels only
    3.   ARINC 573
40. An ARINC 429 system uses a ?
    1.   16 bit word over a twisted pair of wires
    2.   20 bit word over a bi-directional bus
    3.   32 bit word over a twisted pair of wires