ES3J STUDY QUESTIONS WITH CORRECT ANSWERS
Rectifier - (answer)What part of power supply converts electrical current from AC to DC
Grounded loop - (answer)Tearing or flagging of a video picture is the direct result of
Frequency multiplexing - (answer)You have a frequency that has been amplified to four frequencies the
change is called
19-23" wide - (answer)Which of the following is true of an equipment rack?
In series with the heating contacts - (answer)The heat anticipator on the load of a line voltage
thermostat is connected ______?
75 - (answer)The standard impedence of a standard video coax cable is ____ OHMS?
Boost transformer - (answer)How do you increase the voltage through a circuit after it passes through?
Reflective light - (answer)How would you get the best picture on a monitor?
Green with a yellow stripe - (answer)What is the color of an equipment grounding wire?
900 OHM - (answer)What is the minimum resistance error of a 1000 OHM resistor with an error of 10%?
Fiber Optic - (answer)The best product for a closed circuit system is with more than 7000 without
reamplification is?
The F speed stop of the lens - (answer)What is a cameras sensitivity based on?
Balancing Transformer - (answer)How do you get rid of snow on a monitor?
, ES3J STUDY QUESTIONS WITH CORRECT ANSWERS
Ceiling grid - (answer)When mounting an interior camera which of the following is not a suitable
location?
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?
Short Circuit - (answer)Which of the following should not cause a swinger?
Radiated Energy - (answer)When white and black bars appear on a video monitor, this condition is
known as hum, what causes this condition?
Voltage - (answer)Which of the following factors would not affect the temperature of conductors under
a full load?
Star, bus, hierrachal ARE ALL multipoint - (answer)What type of network is not considered multipoint?
Voltmeter - (answer)What device is best used to test a dry cell?
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 _____?
Bell Current Stays - (answer)All of the following are advantages to using a relay to remote actuate a
signaling device except?
44 - (answer)Given: 4 Speakers wired in seried of 4 OHMS, 8 OHMS, 16 OHMS, and 16 OHMS, what is
the total impedence?
Black - (answer)The power wire for AC is designated by what color?
Rectifier - (answer)What part of power supply converts electrical current from AC to DC
Grounded loop - (answer)Tearing or flagging of a video picture is the direct result of
Frequency multiplexing - (answer)You have a frequency that has been amplified to four frequencies the
change is called
19-23" wide - (answer)Which of the following is true of an equipment rack?
In series with the heating contacts - (answer)The heat anticipator on the load of a line voltage
thermostat is connected ______?
75 - (answer)The standard impedence of a standard video coax cable is ____ OHMS?
Boost transformer - (answer)How do you increase the voltage through a circuit after it passes through?
Reflective light - (answer)How would you get the best picture on a monitor?
Green with a yellow stripe - (answer)What is the color of an equipment grounding wire?
900 OHM - (answer)What is the minimum resistance error of a 1000 OHM resistor with an error of 10%?
Fiber Optic - (answer)The best product for a closed circuit system is with more than 7000 without
reamplification is?
The F speed stop of the lens - (answer)What is a cameras sensitivity based on?
Balancing Transformer - (answer)How do you get rid of snow on a monitor?
, ES3J STUDY QUESTIONS WITH CORRECT ANSWERS
Ceiling grid - (answer)When mounting an interior camera which of the following is not a suitable
location?
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?
Short Circuit - (answer)Which of the following should not cause a swinger?
Radiated Energy - (answer)When white and black bars appear on a video monitor, this condition is
known as hum, what causes this condition?
Voltage - (answer)Which of the following factors would not affect the temperature of conductors under
a full load?
Star, bus, hierrachal ARE ALL multipoint - (answer)What type of network is not considered multipoint?
Voltmeter - (answer)What device is best used to test a dry cell?
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 _____?
Bell Current Stays - (answer)All of the following are advantages to using a relay to remote actuate a
signaling device except?
44 - (answer)Given: 4 Speakers wired in seried of 4 OHMS, 8 OHMS, 16 OHMS, and 16 OHMS, what is
the total impedence?
Black - (answer)The power wire for AC is designated by what color?
