1) A small device that stores a small amount of charge and is typically used to filter frequencies. a) Switch b) Battery c) Disc Capacitor d) Electrolytic Capacitor 2) A disc comprised of two dissimilar metals that produces a high pitched sound and is usually used as a siren or audible indicator. a) Piezo speaker b) Pushbutton c) Capacitor d) Resistor 3) Light sensitive resistor a) Resistor b) LED c) Capacitor d) Speaker e) CDS cell 4) An electromagnetic controlled switch a) Relay b) Electromagnet c) Integrated Circuit (IC) d) Transformer 5) Circuits that has predictable functionality on a silicon substrate a) Relay b) Connector c) Integrated Circuit (IC) d) Transformer 6) What happens when a fuse melts? a) The circuit blows up b) The circuit stops working c) thje circuit catches fire   d) The circuit catches fire 7) Carbon device that slows current flow a) 21k ohms (21,000 ohms) b) 33k ohms (33,000 ohms) c) 22k ohms (22,000 ohms) d) 17k ohms (17,000 ohms) 8) Carbon device that slows current flow a) 1,000 ohms b) 2,000 ohms c) 3,000 ohms 9) Carbon device that slows current flow a) 22,000 ohms b) 220 ohms c) 32,000 ohms 10) What is the total resistance for 3 resistors in series for the following resistors? 250,500, and 750 a) 500 ohms b) 2,000 ohms c) 1,500 ohms d) 200 ohms 11) What is the total resistance for 3 resistors in parallel for the following resistors? 200,200, and 400 ohms a) 80 ohms b) 800 ohms c) 200 ohms d) 100 ohms 12) Use to prototype circuits a) Battery b) Breadboard c) Controller d) Switch 13) What is this device? a) Solenoid b) Button c) Relay d) Fuse 14) This device is used as a mechanical sensor to detect anything that contacts it. a) Selector switch b) Pushbutton Switch c) DIP switch d) Limit switch 15) This device acts as multiple switches a) Selector switch b) Limit switch c) Pushbutton switch d) DIP (dual inline) switch 16) A switch used to select operating modes in a circuit a) Pushbutton switch b) Limit switch c) Selector switch d) DIP (dual inline) switch 17) What is the formula for power? a) P = IV b) P = V/I c) P = I/V d) P = IVR 18) A device that is made to measure properties of electricity a) Voltmeter b) Ammeter c) Multimeter d) Ohmmeter 19) How do we measure AC voltage with a multimeter? a) Power on, across component, set to AC b) Power off, across component, set to AC c) Power on, across component, set to DC d) Power off, across component, set to DC 20) How do we measure DC voltage with a multimeter? a) Power on, across component, set to AC b) Power off, across component, set to AC c) Power on, across component, set to DC d) Power off, across component, set to DC 21) How do we measure resistance with a multimeter? a) Power on, across component, set to AC b) Power off, across component, set to AC c) Power on, across component, set to DC d) Power off, across component, set to DC e) Power off, across component (out of circuit), set to Ohms 22) How do we measure continuity with a multimeter? a) Power on, across component, set to AC b) Power off, across component, set to AC c) Power on, across component, set to DC d) Power off, in series, set to continuity .))) 23) Which circuit state means the circuit is on? a) Switch Open b) Switch Closed c) Both d) Neither 24) Which circuit state means the circuit is off? a) Switch Open b) Switch Closed c) Both d) Neither 25) This device provides continuous DC power to a circuit? a) Battery b) AC outlet c) Capacitor d) Inductor 26) This device displays a continuous voltage waveform over time a) Oscilloscope b) Multimeter c) Computer d) Power supply 27) This device provides power to a circuit for long periods of time. a) Power Supply b) Oscilloscope c) Computer d) Multimeter 28) The direction of the flow of current prior to the scientific explanation (Conventional current) a) From positive to negative b) From negative to positive c) Negative to Negative d) Positive to Positive 29) The direction of the flow of current as defined by scientific (Electron flow) a) From positive to negative b) From negative to positive c) Negative to Negative d) Positive to Positive 30) PN semiconductor that allows current to flow in only one direction a) Diode b) Relay c) Amplifier d) Sensor 31) PN semiconductor that allows current to flow in only one direction a) Diode b) Relay c) Amplifier d) Sensor 32) Defines the peak voltage of a sine wave a) Amplitude b) Period c) Frequency 33) Defines the number of cycles per second (c/s - variations) of voltage of a sine wave a) Amplitude b) Period c) Frequency 34) Defines the number of seconds per cycle (s/c - variations) of voltage of a sine wave a) Amplitude b) Period c) Frequency 35) The following resistor has a gold band for tolerance. What is the tolerance for this resistor? a) 5 % b) 10 % c) 20 % 36) The following resistor has a silver band for tolerance. What is the tolerance for this resistor? a) 5 % b) 10 % c) 20 % 37) Power is defined as P = I*V or I^2 * R. How do we make sure that a resistor can handle the power through it? a) By the color of the resistor b) By the size of the resistor c) The manufacture of the resistor

Electronics 2

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