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ESAT BOARD A Grade Exam With Questions and 100% Correct Answers
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ESAT BOARD A Grade ExamWith Questions and 100% Correct
Answers
a good ground connection - Correct answer-To protect you against electrical shock, the
chassis of each piece of your station equipment should be connected to:
Copper - clad steel - Correct answer-Which of these materials is best for a ground rod driven into
earth
To the chassis - Correct answer-Where should the green wire in a three wire AC line cord be
connected in a power supply
because the ground wire is a resonant length on several HF bands and acts more like an antenna
than an RF ground connection - Correct answer-If your third-floor amateur station has a ground
,wire running 10.05 meters (33 feet) down to a ground rod, why might you get an RF burn if
you touch the front panel of your HF transceiver
keep the station's ground wire as short as possible - Correct answer-What is one good way
to avoid stray RF energy in your amateur station?
RF hot spots can occur in a station located above the ground floor if the equipment is grounded
by a long ground wire - Correct answer-Which statement about station grounding is true?
does not develop a high voltage with respect to the ground - Correct answer-On mains
operated power supplies, the ground wire should be connected to the metal chassis of the
power supply. This ensures, in case there is a fault in the power supply, that the chassis:
prevent the chassis from becoming live in case of an internal short to the chassis - Correct
answer-The purpose of using a three - wire power cord and plug on amateur radio equipment
is to:
as close as possible to the transceiver output - Correct answer-A low pass filter in an HF station
most effective when connected:
Low pass filter - Correct answer-In designing an HF station, which component would you use
to reduce the effects of harmonic radiation?
, SWR bridge - Correct answer-Which component in an HF station is the most useful
for determining the effectiveness of the antenna system?
Antenna switch - Correct answer-Of the components in an HF station, which component would
normally be connected closet to the antenna, antenna tuner and dummy load?
Antenna tuner - Correct answer-Of the components in an HF station, which component would be
used to match impedances between the transceiver and antenna?
Dummy load - Correct answer-In an HF station, which components is temporarily connected in
the tuning process
A most antennas when operating below 14 MHz - Correct answer-In an HF station, the antenna
tuner is usually used for matching the transceiver with:
microphone - Correct answer-In a frequency modulation transmitter, the input to the
speech amplifier is connected to the:
About 12 volts - Correct answer-How much voltage does a standard automobile battery usually
supply
A battery - Correct answer-Which component has a positive and a negative side?
storage cell - Correct answer-A cell, that can be repeated recharged by supplying it
with electrical energy, is known as a:
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