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Text File  |  1992-01-26  |  12KB  |  378 lines
  1.  
  2.  
  3.  FCC NOVICE Exam Question Pool.     Subelement 2F.
  4.  Circuit Components.        2 Questions.
  5.  
  6.  
  7. ---------------------------------------------------
  8.  
  9. 2F 1.1  B
  10. What is the symbol used on schematic diagrams to represent
  11. a resistor?
  12.  
  13.       A.                       B.
  14.              ───│──                ──/\/\/\/\/\/\──
  15.  .
  16.  .
  17.  .
  18.       C.       ┌─┐             D.
  19.             ───┤ ├───                ┌─┬─┬─┬─┬─┬─┬─┐
  20.                └─┘                   │ │ │ │ │ │ │ │
  21.  
  22.  
  23. 2F 1.2  C
  24. What is the symbol used on schematic diagrams to represent
  25. a variable resistor or potentiometer?
  26.  
  27.       A.        ─┐ ─┐          B.               ─┐
  28.                /  /                  ┌─┬─┬─┬─┬─/─┬─┐
  29.             ──│───                  │ │ │ │ / │ │ │
  30.                                            /
  31.  .
  32.  .
  33.       C.      ┌─               D.             ─┐
  34.                 \                         │ │/
  35.            ──/\/\/\/\/\/\─             ───┤/├───
  36.                     \                    /│ │
  37.  
  38.  
  39. 2F 1.3  C
  40. In diagram 2F-1, which component is a resistor?
  41.  
  42.  A. 1
  43.  B. 2
  44.  C. 3                Figure 2F-1
  45.  D. 4
  46.                 /        2
  47.               /       ┌┬───┬┐         3
  48.          ┌──O    O────┤│   │├────/\/\/\/\/\/\───┐
  49.          │    1       └┴───┴┘                   │
  50.          │                                      │
  51.          │                4                     │
  52.          │                  │                   │
  53.          └────────────────┤ ├───────────────────┘
  54.                        ──   │ ─┼─
  55.  
  56.  
  57. 2F 2.1  A
  58. What is the symbol used on schematic diagrams to represent
  59. a single-throw switch?
  60.  
  61.                /
  62.       A.     /                 B.      ─┐
  63.            O    O                    ──│───
  64.                                         └─
  65.  .
  66.                 O                        ┌───
  67.       C.       /                D.       
  68.              /                       O────
  69.            O    O                        
  70.                                          └───
  71.  
  72.  
  73. 2F 2.2  A
  74. What is the symbol used on schematic diagrams to represent
  75. a single-pole, double-throw switch?
  76.  
  77.                 O
  78.                /
  79.       A.     /                 B.   O────
  80.            O    O                       
  81.                                         └───
  82.  .
  83.  .
  84.       C.       /                D.       ┬
  85.              /                          ─┴────O──
  86.            O    O                     ───
  87.  .
  88.  
  89.  
  90. 2F 2.3  B
  91. What is the symbol used on schematic diagrams to represent
  92. a double-pole, double-throw switch?
  93.  
  94.                 O
  95.                /                     O──┬──O
  96.       A.     /                 B.       |
  97.            O    O                    O──┴──O
  98.  .
  99.                                          ┌───
  100.       C.   O────                D.       
  101.                                     O────
  102.                └───                      
  103.                                          └───
  104.  
  105.  
  106. 2F 2.4  D
  107. What is the symbol used on schematic diagrams to represent
  108. a single-pole, 5-position switch?
  109.  
  110.                                           │
  111.                                         ───┴───
  112.            O   O   O   O   O            ─ ─ ─ ─
  113.       A.   ├ ─ ┼ ─ ┼ ─ ┼ ─ ┤     B.     ─ ─ ─ ─
  114.            O   O   O   O   O            ─ ─ ─ ─
  115.                                         ┌─────┐
  116.                                         │
  117.  .
  118.  .
  119.                  O                          O
  120.       C.     O   │   O           D.     O       O
  121.                \  /
  122.            O────O────O              O     O────O
  123.  .
  124.  
  125.  
  126. 2F 2.5  A
  127. In diagram 2F-2, which component is a switch?
  128.  
  129.  A. 1
  130.  B. 2
  131.  C. 3                Figure 2F-2
  132.  D. 4
  133.                 /        2
  134.               /       ┌┬───┬┐         3
  135.          ┌──O    O────┤│   │├────/\/\/\/\/\/\───┐
  136.          │    1       └┴───┴┘                   │
  137.          │                                      │
  138.          │                4                     │
  139.          │                  │                   │
  140.          └────────────────┤ ├───────────────────┘
  141.                        ──   │ ─┼─
  142.  
  143.  
  144. 2F 3.1  C
  145. What is the symbol used on schematic diagrams to represent
  146. a fuse?
  147.  
  148.  .
  149.       A.      ┌─┐              B.      │┌─┐│
  150.             ──┤ ├──                 ───┤│ │├───
  151.               └─┘                      │└─┘│
  152.  .
  153.  .
  154.                                          │
  155.       C.    ┌┬───┬┐            D.     ┌──┴──┐
  156.            ─┤│   │├─                  └──┬──┘
  157.             └┴───┴┘                      │
  158.  
  159.  
  160. 2F 4.1  C
  161. What is the symbol used on schematic diagrams to represent
  162. a single-cell battery?
  163.  
  164.  .
  165.       A.   ──  │   ─┼─          B.   ── ┌─┐ ─┼─
  166.             ───┤├───                  ──┤ ├──
  167.                │                        └─┘
  168.  .
  169.  .
  170.  .
  171.       C.   ─┼─ │   ──           D. ─┼─ ┌┬───┬┐  ──
  172.             ───┤├───                  ─┤│   │├─
  173.                │                       └┴───┴┘
  174.  
  175.  
  176. 2F 4.2  B
  177. What is the symbol used on schematic diagrams to represent
  178. a multi-cell battery?
  179.  
  180.  .
  181.       A.    ── ┌─┐  ┌─┐  ┌─┐ ─┼─     B.   ─┼─ │ │   ──
  182.              ──┤ ├──┤ ├──┤ ├──             ───┤││├───
  183.                └─┘  └─┘  └─┘                  │ │
  184.  .
  185.  .
  186.  .
  187.       C.    ─┼─ │ | | | ┌            D.   ──  │ │  ─┼─
  188.              ───┤ | | | │   ──             ───┤││├───
  189.                 │ | | | └─────                │ │
  190.  
  191.  
  192. 2F 5.1  D
  193. What is the symbol normally used to represent an earth-ground
  194. connection on schematic diagrams?
  195.  
  196.  .
  197.       A.        │              B.       │
  198.                /│\                    __│___
  199.              /  │  \                 /  /  /
  200.  .
  201.  .
  202.       C.                        D.      │
  203.               _│_│_                  ───┴───
  204.              /_____\                  ─────
  205.                                        ───
  206.  
  207.  
  208. 2F 5.2  B
  209. What is the symbol normally used to represent an chassis-ground
  210. connection on schematic diagrams?
  211.  
  212.  .
  213.       A.        │              B.       │
  214.                /│\                    __│___
  215.              /  │  \                 /  /  /
  216.  .
  217.  .
  218.       C.        │               D.
  219.              ───┴───                  _│_│
  220.               ─────                  /_____\
  221.                ───
  222.  
  223.  
  224. 2F 5.3  A
  225. In diagram 2F-5, which symbol represents an chassis ground connection?
  226.  
  227.  A. 1
  228.  B. 2                   Figure 2F-5
  229.  C. 3
  230.  D. 4                           O
  231.                                 │  ┌──────────────┐
  232.                                /   │             /
  233.                           │  /     │        │  /
  234.        ┌──/\/\/\/\/\/\────┤\       │   O────┤\
  235.        │                  │  >     │        │  <
  236.        │                2      \   │      3      \
  237.        │                        └──┘              │ 4
  238.        │ 1                                     ───┴───
  239.      __│___                                     ─────
  240.     /  /  /                                      ───
  241.  
  242.  
  243. 2F 5.4  D
  244. In diagram 2F-5, which symbol represents an earth ground connection?
  245.  
  246.  A. 1
  247.  B. 2                   Figure 2F-5
  248.  C. 3
  249.  D. 4                           O
  250.                                 │  ┌──────────────┐
  251.                                /   │             /
  252.                           │  /     │        │  /
  253.        ┌──/\/\/\/\/\/\────┤\       │   O────┤\
  254.        │                  │  >     │        │  <
  255.        │                2      \   │      3      \
  256.        │                        └──┘              │ 4
  257.        │ 1                                     ───┴───
  258.      __│___                                     ─────
  259.     /  /  /                                      ───
  260.  
  261.  
  262. 2F 6.1  D
  263. What is the symbol normally used to represent an antenna
  264. on schematic diagrams?
  265.  
  266.  .
  267.                ───                  ___________
  268.       A.      ─────            B.   \         /
  269.              ───┬───                  \─────/
  270.                 │                     └─┬─┬─┘
  271.  .
  272.  .
  273.  .
  274.              /__/__/                  \  │  /
  275.       C.        │              D.       \│/
  276.                 │                        │
  277.  
  278.  
  279. 2F 7.1  C
  280. What is the symbol used to represent a NPN bipolar transistor
  281. on schematic diagrams?
  282.  
  283.                    /──── C
  284.               │  /                      E \   ├────── B2
  285.   A.    B ────┤\                 B.        >  │
  286.               │  <                           \│
  287.                    \──── E                    ├────── B1
  288.  .
  289.  .
  290.                    /──── C
  291.   C.          │  /               D.     E \   ├────── B2
  292.         B ────┤\                           <  │
  293.               │  >                           \│
  294.                    \──── E                    ├────── B1
  295.  
  296.  
  297. 2F 7.2  A
  298. What is the symbol used to represent a PNP bipolar transistor
  299. on schematic diagrams?
  300.  
  301.                    /──── C
  302.               │  /                      E \   ├────── B2
  303.   A.    B ────┤\                 B.        >  │
  304.               │  <                           \│
  305.                    \──── E                    ├────── B1
  306.  .
  307.  .
  308.                    /──── C
  309.   C.          │  /               D.     E \   ├────── B2
  310.         B ────┤\                           <  │
  311.               │  >                           \│
  312.                    \──── E                    ├────── B1
  313.  
  314.  
  315. 2F 7.3  C
  316. In diagram 2F-7, which symbol represents a PNP bipolar transistor?
  317.  
  318.  A. 1
  319.  B. 2                   Figure 2F-7
  320.  C. 3
  321.  D. 4                           O
  322.                                 │  ┌──────────────┐
  323.                                /   │             /
  324.                           │  /     │        │  /
  325.        ┌──/\/\/\/\/\/\────┤\       │   O────┤\
  326.        │                  │  >     │        │  <
  327.        │                2      \   │      3      \
  328.        │                        └──┘              │ 4
  329.        │ 1                                     ───┴───
  330.      __│___                                     ─────
  331.     /  /  /                                      ───
  332.  
  333.  
  334. 2F 7.4  B
  335. In diagram 2F-7, which symbol represents a NPN bipolar transistor?
  336.  
  337.  A. 1
  338.  B. 2                   Figure 2F-7
  339.  C. 3
  340.  D. 4                           O
  341.                                 │  ┌──────────────┐
  342.                                /   │             /
  343.                           │  /     │        │  /
  344.        ┌──/\/\/\/\/\/\────┤\       │   O────┤\
  345.        │                  │  >     │        │  <
  346.        │                2      \   │      3      \
  347.        │                        └──┘              │ 4
  348.        │ 1                                     ───┴───
  349.      __│___                                     ─────
  350.     /  /  /                                      ───
  351.  
  352.  
  353. 2F 8.1  A
  354. What is the symbol used to represent a triode vacuum tube on
  355. schematic diagrams?
  356.  
  357.                                           │ PLATE
  358.                 │ PLATE                 ───┴───
  359.     A.       ───┴───           B.       ─ ─ ─ ─ ┐
  360.         GRID ─ ─ ─ ─                    ─ ─ ─ ─ │GRID
  361.              ┌─────┐                    ─ ─ ─ ─ ┘
  362.              │ /\   CATHODE             ┌─────┐
  363.              │ ││               CATHODE │ /\
  364.  .
  365.  .
  366.               PLATE                      PLATE
  367.     C.          │              D.          │
  368.                 O                  GRID   ▀▀▀
  369.                   ■ GRID             ────▄
  370.                 O                        ▄▄▄▄▄
  371.      CATHODE    │               CATHODE    │
  372.  
  373.  
  374. --------------------------------------------------
  375.  
  376. End of Subelement 2F.
  377.  
  378.