ELECTRICAL AND ELECTRONICS ENGINEERING QUESTION ANSWERS

1. An antilog amplifier has a ________ in series with the input.
A) BJT
B) diode
C) diode or BJT
D) resistor*

Answer:D) resistor

2. A basic ________ amplifier is formed by three op-amps and seven resistors
A) instrumentation
B) isolation
C) log *
D) Antilog

Answer:C) log 

3.A 311 IC is an example of an eight-pin DIP that can be made to function as a ________.
A) comparator
B) 555 timer

C) D to A converter *
D) ladder network

Answer:C) D to A converter 

4. What is the difference between common-mode and differential-mode input signals?
A) phase relationship
B) voltage
C) current*
D) apparent power

Answer:C) current

5. The ratio between differential gain and common-mode gain is called
A) amplitude
B) differential-mode rejection*
C) common-mode rejection
D) phase

Answer:B) differential-mode rejection