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Engineering Crossword Puzzle
June 21, 2015

For the sake of avid cruciverbalists amongst us, each week I create a new crossword puzzle that has a theme related to engineering, mathematics, chemistry, physics, and other technical words. You will never be asked the name of a movie star unless he/she was involved in a technical endeavor (e.g., Hedy Lamar). Enjoy!

Reproduction of this puzzle without the express permission of RF Cafe is prohibited.
acr. = acronym, abbr. = abbreviation, pl. = plural, wds. = words

Engineering Crossword Puzzle, June 21, 2015 - RF Cafe

Note: A standard for crossword puzzles is when all words in a clue are capitalized, the solution is the abbreviation or acronym for that clue; e.g., Alternating Current = AC.

ACROSS DOWN
1. Type of directional coupler
5. Analog-to-Digital (abbr.)
7. Chemical symbol for silicon
9. One type of construction used for directional couplers (with 33 Down)
13. Flash caused by an electric current ionizing a gas or vapor
14. Flip-flop control input (pl.)
15. Frequency Division Duplex
16. Test document for verifying proper function (abbr.)
19. Volt-ohmmeter (abbr.)
21. Chemical symbol for bromine
22. Circuit path with very high or infinite impedance
23. Weight (abbr.)
26. RF power sampling device
29. One sampling port of a directional coupler
32. Morse Code for "from"
34. Switch position
35. A mathematical quantity that has both direction and magnitude
36. Exponent that returns the original number
37. Chemical symbol for manganese
40. Modern battlefield technique (abbr.)
42. _____ _____ - popular author on engineering situations (first & last name)
46. Chemical symbol for cesium
47. Million multiply accumulate operations (abbr.)
48. Unit of inductance (abbr.)
49. 300 Hz to 3 kHz in audio (abbr.)
50. Chemical symbol for polonium
51. Computer monitor (abbr., pl.)
52. Chemical symbol for einsteinium
53. Evangelista __________, inventor of the mercury barometer
56. European equivalent to the U.L.
59. Unit of liquid measure (abbr.)
60. Negative temperature coefficient (abbr.)
63. PC Card - with 68 pin interface
65. Amateur Radio Association (abbr.)
67. Chemical symbol for tin
69. One sampling port of a directional coupler
71. Lowest operational frequency of a waveguide (pl.)
73. Type of component package (abbr.)
74. Charged particles
75. Chemical symbol for thallium
76. Greek letter
79. Upper Sideband (abbr.)
80. Type of digital filter (abbr.)
82. Radio navigation reference signal
84. Very large unit of apparent power (abbr.)
86. A common use for a directional coupler
87. Yard (abbr.)
88. 1e-6 mA
89. Typical bandwidth of a directional coupler
1. Generated a form of energy arising from the kinetic energy of atoms and molecules
2. Chemical symbol for radium
3. International Reply Coupon (abbr.)
4. Type of power distribution system proposed by Thomas Edison (abbr.)
5. Chemical symbol for argon
6. He invented the triode vacuum tube
7. Engineering university located in Palo Alto, CA
8. Network department (abbr.)
9. 30 kHz to 300 kHz
10. User Datagram Protocol
11. Chemical symbol for mendelevium
12. Reduce the amount of response overshooting
17. Internet address (abbr.)
18. A measurement application of a directional coupler (abbr.)
20. 12 inches
21. Filter type (abbr.)
24. Base of the binary number system
25. Length times width
27. Unit of capacitance (abbr.)
28. 1.602E-19 Joules
30. Type of logic gate
31. Army-Navy specification prefix
33. One type of construction used for directional couplers (with 9 Across, or "Distributed")
37. Network controllers
38. Reflected radar or sonar signal (pl.)
39. Generalized Multiprotocol Label Switching (abbr.)
41. Akin to WAC, only just in America
42. Surface Mount Technology
43. Television Interference (abbr.)
44. Scheme to maintain proper frequency (abbr.)
45. Semiconductor On Insulator (abbr.)
46. Error checking scheme (abbr.)
54. Opposite of transmitted
55. Base transceiver station equipment manufacturer
57. Sharp bend in I-V curve
58. With 66 Down, the world's best engineering website
59. Unit of liquid volume (pl.)
61. Boob tube (abbr.)
62. World's largest yearly convention of gadget and device manufacturers (abbr.)
63. Unit of time (abbr.)
64. Chemical symbol for gold
65. Online service
66. With 58 Down, the world's best engineering website
68. 1/2 of a byte
70. Common average used for sinewaves (abbr.)
72. Logic family (abbr.)
77. Lubricant
78. Common plastic insulation type (abbr.)
80. Internet protocol (abbr.)
81. One component of a complex number (abbr.)
82. Word used in describing 2-D and 3-D object dimensions; i.e., 10 mm __ 25 mm
83. 1e-6 mA
84. Chemical symbol for molybdenum
85. PC follower

Answer below

 

2015 Crosswords Archive
| 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 |
December 27
December 20
December 13
December 6
November 29
November 22
November 15
November 8
November 1
October 25
October 18
October 11
October 4
September 27
September 20
September 13
September 6
August 30
August 16
August 9
August 2
July 26
July 19
July 12
June 21
May 3
April 5
March 8
March 1
February 22
February 8
January 25
January 18
January 11
January 4

 

 

 

 

 

 

 

 

 

 

 

 

Engineering Crossword Puzzle Solution, June 21, 2015 - RF Cafe