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Assignment Questions - 14188_255
Assignment Questions - 14188_257

Neets Module 16-Introduction to Test Equipment
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16 2-22.   What will be the probable result of connecting an ammeter (or milliammeter) in PARALLEL with a source of voltage or a circuit component? 1.    A burned-out meter that will provide no useful readings 2.    A higher than normal meter reading 3.    A lower than normal meter reading 4.    A normal meter reading Figure 2C.—Series-parallel circuit. IN ANSWERING QUESTIONS 2-23 AND      2-24, REFER TO FIGURE 2C. 2-23.   To measure total circuit current, you should break the circuit to connect an ammeter at which of the following points? 1.    A only 2.    B or C 3.    C, D, or E 4.    A, B, or F 2-24.   To measure the current flow through resistor R2 only, you should break which of the following points to connect the ammeter? 1.    A 2.    B 3.    C 4.    F 2-25.   Meter sensitivity is determined by the amount of current required by the ammeter coil to provide full-scale deflection of the pointer.  An ammeter coil requiring which of the following current values provides the greatest sensitivity? 1.        1 milliampere 2.      10 milliamperes 3.    100 microamperes 4.    500 microamperes 2-26.   Circuits in which low-sensitivity ammeters are used are said to be "loaded." Which of the following statements describes the cause of circuit loading? 1.    The ammeter circuit draws NO current from the circuit being tested 2.    The ammeter circuit draws MINIMUM current from the circuit being tested 3.    The ammeter circuit draws EXCESSIVE current from the circuit being tested 4.    The ammeter circuit INDUCES current into the circuit being tested 2-27.   In which of the following electronic circuits does the use of a meter with low sensitivity have the greatest loading effect? 1.    High-power circuits 2.    Low-current circuits 3.    High-current circuits 4.    High-voltage circuits






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