CETA PREP TEST study guide REAL QUESTIONS & VERIFIED ANSWERS UPDATED

CETA PREP TEST study guide REAL QUESTIONS & VERIFIED ANSWERS UPDATED 8.33 meters is the full wavelength in air for what RF frequency? - ANSWER 36 MHz Decimal 164 would appear as what in binary? - ANSWER A resistor has color stripes yellow, violet, violet, silver. It is? - ANSWER 470 MegOhm +/- 10% What is the total capacitance of three capacitors valued at 100uf, 100uf and 50uf when connected in series? - ANSWER 25 pf What is the ripple frequency of a full wave single phase bridge rectifier operated at 60 Hz? - ANSWER 120 Hz What emits a voltage when heated or cooled? - ANSWER Thermocouple Adding the binary numbers 101011 and 001110 will give you what result? - ANSWER 111001 A component that reduces in resistance as it is heated. - ANSWER A negative temperature coefficient thermistor An autotransformer - ANSWER has a single winding A dual trace oscilloscope differs from a single trace in that only the dual trace scope: - ANSWER alternates sweeps If an RF signal Voltage is reduced by 6db it is then : - ANSWER half the original size Applying positive voltage to the P end and negative to the N end of a germanium diode: - ANSWER will forward bias it You would probably prefer a digital VOM over an ordinary analog meter: - ANSWER for most accuracy You should expect the video amplifier in a radar or TV receiver to have a frequency response of: - ANSWER 0-6 MHzd The radio communication mode that utilizes the basic frequency and one of the side bands: - ANSWER is called "SSB" When using fiber optic to transfer a signal, the light must: - ANSWER enter the "cone of acceptance" The energy stored in a coil is measured in: - ANSWER Henrys The telephone communication term "Cellular" refers to: - ANSWER small geographic areas covered by each base station Integrated circuit failures often exhibit: - ANSWER open or short conditions Which of these would you normally choose to cause an LED to light? - ANSWER 3 VDC A capacitor (3/8"x1/8" ceramic or mica) marked 47K is: - ANSWER 47 pf +/- 10% A "digital storage oscilloscope": - ANSWER uses micro processing and memory to allow close analysis of signal. Carbon microphones are much like variable: - ANSWER resistors An antenna that is longer than another: - ANSWER will have a lower resonant frequency An 8 bit binary code allows how many logical combinations. - ANSWER 256 An inductor in an electronic circuit: - ANSWER resists AC current flow A printer directly connected to a personal computer would use what kind of connection? - ANSWER usb or parallel centronics The digital method of representing characters by using combinations of zeros and ones is called: - ANSWER Binary AM utilizes signal level variations where FM utilizes : - ANSWER Frequency variations What decimal number is represented by the binary number ? - ANSWER 106 Decimal 50 would appear as what number in Hex? - ANSWER 32 The display of a DMM would probably be: - ANSWER LCD A disadvantage of LCD is: - ANSWER Environmental temperature sensitivity