ES3J Study questions | Questions with 100% Verified Answers |
Latest Update 2026/2027
Question: Rectifier
Answer: What part of power supply converts electrical current from AC to DC
Question: Grounded loop
Answer: Tearing or flagging of a video picture is the direct result of
Question: Frequency multiplexing
Answer: You have a frequency that has been amplified to four frequencies the change is called
Question: 19-23" wide
Answer: Which of the following is true of an equipment rack?
Question: In series with the heating contacts
Answer: The heat anticipator on the load of a line voltage thermostat is connected ______?
Question: 75
Answer: The standard impedence of a standard video coax cable is ____ OHMS?
Question: Boost transformer
Answer: How do you increase the voltage through a circuit after it passes through?
Question: Reflective light
Answer: How would you get the best picture on a monitor?
Question: Green with a yellow stripe
Answer: What is the color of an equipment grounding wire?
Question: 900 OHM
Answer: What is the minimum resistance error of a 1000 OHM resistor with an error of 10%?
Question: Fiber Optic
Answer: The best product for a closed circuit system is with more than 7000 without reamplification is?
Question: The F speed stop of the lens
Answer: What is a cameras sensitivity based on?
Question: Balancing Transformer
Answer: How do you get rid of snow on a monitor?
Question: Ceiling grid
Answer: When mounting an interior camera which of the following is not a suitable location?
, Question: Fiber Optic Cable
Answer: 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?
Question: Short Circuit
Answer: Which of the following should not cause a swinger?
Question: Radiated Energy
Answer: When white and black bars appear on a video monitor, this condition is known as hum, what causes
this condition?
Question: Voltage
Answer: Which of the following factors would not affect the temperature of conductors under a full load?
Question: Star, bus, hierrachal ARE ALL multipoint
Answer: What type of network is not considered multipoint?
Question: Voltmeter
Answer: What device is best used to test a dry cell?
Question: Shorted
Answer: A length of COAX cable used for data is terminated at one end with 50 OHM terminator, the resistance
between the shield and the center conductor at the other end of the cable is 0 OHMS; this indicated the cable
continuity is _____?
Question: Bell Current Stays
Answer: All of the following are advantages to using a relay to remote actuate a signaling device except?
Question: 44
Answer: Given: 4 Speakers wired in seried of 4 OHMS, 8 OHMS, 16 OHMS, and 16 OHMS, what is the total
impedence?
Question: Black
Answer: The power wire for AC is designated by what color?
Question: 75 OHMS
Answer: The standard impedance of the terminator cable is
Question: Latching Relay (this is the answer) Exit Delay Deranged Delay
Answer: All of the following are the same except
Question: ADD ground straps
Answer: All of the following are means to repair objectionable current in metal raceways except:
Question: Latching Relay
Answer: What keeps the alarm circuit activated and the output device operating even if the protective circuit is
restored to normal?
Latest Update 2026/2027
Question: Rectifier
Answer: What part of power supply converts electrical current from AC to DC
Question: Grounded loop
Answer: Tearing or flagging of a video picture is the direct result of
Question: Frequency multiplexing
Answer: You have a frequency that has been amplified to four frequencies the change is called
Question: 19-23" wide
Answer: Which of the following is true of an equipment rack?
Question: In series with the heating contacts
Answer: The heat anticipator on the load of a line voltage thermostat is connected ______?
Question: 75
Answer: The standard impedence of a standard video coax cable is ____ OHMS?
Question: Boost transformer
Answer: How do you increase the voltage through a circuit after it passes through?
Question: Reflective light
Answer: How would you get the best picture on a monitor?
Question: Green with a yellow stripe
Answer: What is the color of an equipment grounding wire?
Question: 900 OHM
Answer: What is the minimum resistance error of a 1000 OHM resistor with an error of 10%?
Question: Fiber Optic
Answer: The best product for a closed circuit system is with more than 7000 without reamplification is?
Question: The F speed stop of the lens
Answer: What is a cameras sensitivity based on?
Question: Balancing Transformer
Answer: How do you get rid of snow on a monitor?
Question: Ceiling grid
Answer: When mounting an interior camera which of the following is not a suitable location?
, Question: Fiber Optic Cable
Answer: 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?
Question: Short Circuit
Answer: Which of the following should not cause a swinger?
Question: Radiated Energy
Answer: When white and black bars appear on a video monitor, this condition is known as hum, what causes
this condition?
Question: Voltage
Answer: Which of the following factors would not affect the temperature of conductors under a full load?
Question: Star, bus, hierrachal ARE ALL multipoint
Answer: What type of network is not considered multipoint?
Question: Voltmeter
Answer: What device is best used to test a dry cell?
Question: Shorted
Answer: A length of COAX cable used for data is terminated at one end with 50 OHM terminator, the resistance
between the shield and the center conductor at the other end of the cable is 0 OHMS; this indicated the cable
continuity is _____?
Question: Bell Current Stays
Answer: All of the following are advantages to using a relay to remote actuate a signaling device except?
Question: 44
Answer: Given: 4 Speakers wired in seried of 4 OHMS, 8 OHMS, 16 OHMS, and 16 OHMS, what is the total
impedence?
Question: Black
Answer: The power wire for AC is designated by what color?
Question: 75 OHMS
Answer: The standard impedance of the terminator cable is
Question: Latching Relay (this is the answer) Exit Delay Deranged Delay
Answer: All of the following are the same except
Question: ADD ground straps
Answer: All of the following are means to repair objectionable current in metal raceways except:
Question: Latching Relay
Answer: What keeps the alarm circuit activated and the output device operating even if the protective circuit is
restored to normal?
