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1. 100,000 miles per hour 2. 186,000 miles per second 3. 300,000 meters per hour 4. 500,000 meters per second 1-49. If the voltage in a circuit increases, what happens to the current? 1-50. Which of the following values is equal to 100mA? ohm? 1. A 2. O 3. µ 4. ! 1-52. If low weight is the major factor, which of the following materials should be used as a conductor? 4. Gold 1-53. What material is MOST widely used as a conductor in electrical equipment? 1. Aluminum 2. Copper 3. Silver 4. Gold with which of the following changes to the cross-sectional area and length of the conductor? 2. Cross-sectional area is increased, length is decreased 4. Cross-sectional area is decreased, length is decreased 6 1-55. A material whose resistance decreases as the temperature increases has what temperature coefficient?
Page 9constant as the temperature increases has what temperature coefficient? 1-57. Which of the following units is NOT a unit of conductance? 1. Siemens 2. S 3. G 4. Ohm 1-58. Resistance bears which, if any, of the following relationships to conductance? 1. A direct relationship 2. A reciprocal relationship 3. An inverse square relationship 4. None THIS SPACE LEFT BLANK INTENTIONALLY. 1-59. Which of the following schematic symbols is used to represent a resistor? 1-60. How is the ability of a resistor to dissipate heat indicated? 4. By the tolerance 1-61. Carbon resistors have which of the following disadvantages? 1-62. Which of the following types of resistors will overcome the disadvantages of a carbon resistor? 1-63. What is the total number of connections on (a) a rheostat and (b) a potentiometer? 1. (a) Two (b) two 2. (a) Two (b) three 3. (a) Three (b) two 4.