ETA CET EXAM PREP GUIDE 2026 CORE
ENGINEERING AND TECHNICAL
CONCEPTS AND SOLVED ITEMS
◉ When troubleshooting equipment that is software controlled
_______
Answer: Use of a computer may be required.
◉ A category 2 type of electronics equipment could be a ________
Answer: Fax machine
◉ An example of a solid state device is ______
Answer: Silicon diode
◉ a four layer PN device is classified as a :
Answer: thyristor
◉ How is a fuse installed in a circuit to insure proper operation?
Answer: In series with the load.
◉ A negative temperature coefficient thermistor will
,Answer: decrease in resistance with temperature
◉ A NiMH battery cell, when charged, has a terminal voltage of:
Answer: 1.2 volts
◉ A thermocouple has an output in the range of
Answer: Millivolts
◉ Germanium diodes
Answer: normally drop about .3 V with forawrd current
◉ A MOSFET
Answer: Has high input impedance
◉ Integrated Circuit packages
Answer: Reduce space requirement
◉ if the gate voltage level, that turns an active SCR on, drops below
the trigger point, while anode and cathode voltages are maintained,
what will occur?
Answer: The SCR stays on
, ◉ What is the effect on a varactor when the reverse bias voltage is
increased
Answer: Capacitance decreases and the tuned frequency increases
◉ An electronic power supply may be designed to
Answer:
◉ In the normal layout of a DC power supply the order of the
sections will be
Answer: Rectifier, Filter, Regulator
◉ This section of the DC power supply would step-up or step-down
the voltage.
Answer: Transformer
◉ This section of the DC power supply changes AC into pulsating DC.
Answer: Rectifier
◉ This section of the DC power supply would provide a steady DC
voltage to a system
Answer: Regulator
◉ The zener diode is the most important component in this section
ENGINEERING AND TECHNICAL
CONCEPTS AND SOLVED ITEMS
◉ When troubleshooting equipment that is software controlled
_______
Answer: Use of a computer may be required.
◉ A category 2 type of electronics equipment could be a ________
Answer: Fax machine
◉ An example of a solid state device is ______
Answer: Silicon diode
◉ a four layer PN device is classified as a :
Answer: thyristor
◉ How is a fuse installed in a circuit to insure proper operation?
Answer: In series with the load.
◉ A negative temperature coefficient thermistor will
,Answer: decrease in resistance with temperature
◉ A NiMH battery cell, when charged, has a terminal voltage of:
Answer: 1.2 volts
◉ A thermocouple has an output in the range of
Answer: Millivolts
◉ Germanium diodes
Answer: normally drop about .3 V with forawrd current
◉ A MOSFET
Answer: Has high input impedance
◉ Integrated Circuit packages
Answer: Reduce space requirement
◉ if the gate voltage level, that turns an active SCR on, drops below
the trigger point, while anode and cathode voltages are maintained,
what will occur?
Answer: The SCR stays on
, ◉ What is the effect on a varactor when the reverse bias voltage is
increased
Answer: Capacitance decreases and the tuned frequency increases
◉ An electronic power supply may be designed to
Answer:
◉ In the normal layout of a DC power supply the order of the
sections will be
Answer: Rectifier, Filter, Regulator
◉ This section of the DC power supply would step-up or step-down
the voltage.
Answer: Transformer
◉ This section of the DC power supply changes AC into pulsating DC.
Answer: Rectifier
◉ This section of the DC power supply would provide a steady DC
voltage to a system
Answer: Regulator
◉ The zener diode is the most important component in this section
