NM ES3J Study questions and correct answers

NM ES3J Study questions and correct answers Rectifier What part of power supply converts electrical current from AC to DC Grounded loop Tearing or flagging of a video picture is the direct result of Frequency multiplexing You have a frequency that has been amplified to four frequencies the change is called 19-23" wide Which of the following is true of an equipment rack? In series with the heating contacts The heat anticipator on the load of a line voltage thermostat is connected ______? 75 The standard impedence of a standard video coax cable is ____ OHMS? Boost transformer How do you increase the voltage through a circuit after it passes through? Reflective light How would you get the best picture on a monitor? Green with a yellow stripe What is the color of an equipment grounding wire? 900 OHM What is the minimum resistance error of a 1000 OHM resistor with an error of 10%? Fiber Optic The best product for a closed circuit system is with more than 7000 without reamplification is? The F speed stop of the lens What is a cameras sensitivity based on? Balancing Transformer How do you get rid of snow on a monitor? Ceiling grid When mounting an interior camera which of the following is not a suitable location? Fiber Optic Cable Given: Hardwire alarm system control panel should be installed so that they help reduce magnetic downtime and false alarms, electromagnetic interference must be prevented from entering the system control panel and causing interference. Which of the following eliminates EMI?