25 3-9.   When you are testing a transistor with a transistor tester, for the reading to have ±15 percent accuracy, the resistance from emitter to base must be what minimum value? 1.  100 ohms 2.  200 ohms 3.  300 ohms 4.    50 ohms 3-10.   When you are testing an in-circuit diode with the transistor tester, the meter pointer deflects below the midscale point.  What does this indicate? 1.  The diode is normal 2.  The diode is faulty 3.  The circuit impedance is 8 ohms 4.  The POLARITY switch is in the PNP position 3-11.   The RCL bridge measures an unknown resistance by balancing the resistance value of the unknown component with that of known components inside the test set.  What type of circuit is used in this method of measurement? 1.  O'Neill bridge 2.  Wheatstone bridge 3.  Colpitts oscillator 4.  D'Arsonval movement 3-12.   The RCL bridge is used to measure which of the following quantities? 1.  Resistance, capacitance, and inductance 2.  Capacitor quality 3.  The turns ratio of transformers 4.  Each of the above 3-13.   To make an inductance measurement on the model 250DE, you must first adjust the DET GAIN control to what position? 1. 1 2. 2 3. 3 4. 4 3-14.   The direct-measuring power meter is used for which of the following types of measurements? 1.  Incident power 2.  Reflected power 3.  Both 1 and 2 above 4.  Average power 3-15.   When you are selecting forward or reverse power measurements, what component(s) of the rf wattmeter is/are restricted to a 180°; rotation range? 1.  The coupler-detector 2.  The POWER RANGE knob 3.  The u-type connector 4.  Both 2 and 3 above 3-16.   Of the following available rf wattmeter power ranges, which one should you select when measuring an unknown power? 1.      10 watts 2.    100 watts 3.    500 watts 4.  1000 watts THIS SPACE LEFT BLANK INTENTIONALLY.