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ATT Test 3 - Questions And Well Detailed Answers
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ATT Test 3 - Questions And Well Detailed Answers
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ATT Test 3 - Questions And Well Detailed AnswersThe basic unit of inductance Right Ans - Henry
If the circuit current decreases, the magnetic field of an inductor Right Ans
- Contracts
The inductor is used to Right Ans - Concentrate a magnetic field
The physical appearance of inductors Right Ans - varies
Inductors have the value of their inductive capacity by Right Ans - Print or
color code
The common inductors are Right Ans - Air and iron
Inductors are commonly identified by their Right Ans - Core type
Which of the following is not a factor for setting the capacitance value
Right Ans - Capacitor leads
The capacitor is used to Right Ans - Store an electrical charge
Which of the following is not a dielectric? Right Ans - Aluminum
Electrolytic capacitors are? Right Ans - Polarized
Which type of dielectric is not used in capacitors Right Ans - Copper
Capacitors are identified by which two values? Right Ans - Fat ads and
voltage
Capacitors are commonly identified by their? Right Ans - Type of dielectric
The physical appearance of capacitors? Right Ans - Varies
The output of a transformer is taken from the ? Right Ans - secondary
, The most common faults found in transformers Right Ans - Opens and
shorts
The dot on a diode represents? Right Ans - Cathode
What does I represent in the number IN34A Right Ans - Diode
The depletion area acts as a barrier to current flow and is formed at the?
Right Ans - Junction of n and p type
When reversed biased, the diode acts as an? Right Ans - open switch
The cathode is made from what type of material? Right Ans - n-type
The purpose of a junction diode is to? Right Ans - Allow current in one
direction
When forward biased, the diode acts as an? Right Ans - closed switch
An ode is made from? Right Ans - p-type
How many diodes are in a half wave rectifier? Right Ans - one
The purpose of a power supply is to? Right Ans - Connect ac to dc
The efficiency of a full wave rectifier is higher than a half wave rectifier
because ? Right Ans - An out put is developed for the entire input
waveform
What is the probable fault if the input to the regulator/ current protection
circuit of the regulator measured 0 volts? Right Ans - Rectifier or filter
What happens to the conduction of Q2 if the output voltage increases?
Right Ans - decreases
In any power supply, which block may contain an over current protection
circuit? Right Ans - regulator
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