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CETa study guide Exam Questions with complete Solutions
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CETa study guide Exam Questions with complete Solutions
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CETa study guide Exam Questionswith complete Solutions
8.33 meters is the full wavelength in air for what RF frequency? - -36 MHz -Decimal 164 would appear as what in binary? - -10100100 -A resistor has color stripes yellow, violet, violet, silver. It is? - -470 MegOhm +/- 10% -What is the total capacitance of three capacitors valued at 100uf, 100uf and 50uf when connected in series? - -25 pf -What is the ripple frequency of a full wave single phase bridge rectifier operated at 60 Hz? - -120 Hz -What emits a voltage when heated or cooled? - -Thermocouple -Adding the binary numbers 101011 and 001110 will give you what result? - -111001 -A component that reduces in resistance as it is heated. - -A negative temperature coefficient thermistor -An autotransformer - -has a single winding -A dual trace oscilloscope differs from a single trace in that only the dual trace scope: - -alternates sweeps -If an RF signal Voltage is reduced by 6db it is then : - -half the original size -Applying positive voltage to the P end and negative to the N end of a germanium diode: - -will forward bias it -You would probably prefer a digital VOM over an ordinary analog meter: - -
for most accuracy -You should expect the video amplifier in a radar or TV receiver to have a frequency response of: - -0-6 MHzd -The radio communication mode that utilizes the basic frequency and one of
the side bands: - -is called "SSB" -When using fiber optic to transfer a signal, the light must: - -enter the "cone of acceptance" -The energy stored in a coil is measured in: - -Henrys -The telephone communication term "Cellular" refers to: - -small geographic
areas covered by each base station -Integrated circuit failures often exhibit: - -open or short conditions -Which of these would you normally choose to cause an LED to light? - -3 VDC -A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: - -47 pf +/- 10% -A "digital storage oscilloscope": - -uses micro processing and memory to allow close analysis of signal. -Carbon microphones are much like variable: - -resistors -An antenna that is longer than another: - -will have a lower resonant frequency -An 8 bit binary code allows how many logical combinations. - -256 -An inductor in an electronic circuit: - -resists AC current flow -A printer directly connected to a personal computer would use what kind of connection? - -usb or parallel centronics -The digital method of representing characters by using combinations of zeros and ones is called: - -Binary -AM utilizes signal level variations where FM utilizes : - -Frequency variations -What decimal number is represented by the binary number 01101010? - -
106 -Decimal 50 would appear as what number in Hex? - -32 -The display of a DMM would probably be: - -LCD -A disadvantage of LCD is: - -Environmental temperature sensitivity -A series DC motor with no load: - -maybe damaged by excessive speed
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