Q. In a bipolar junction transistor (BJT), what are the three regions called?
A.
Emitter, Base, Collector
B.
Source, Gate, Drain
C.
Anode, Cathode, Gate
D.
Source, Base, Collector
Show solution
Solution
A BJT consists of three regions: Emitter, Base, and Collector, which are essential for its operation in memory applications.
Correct Answer:
A
— Emitter, Base, Collector
Learn More →
Q. What is the function of a capacitor in a dynamic RAM (DRAM) cell?
A.
To amplify signals
B.
To store charge
C.
To switch states
D.
To rectify signals
Show solution
Solution
In a dynamic RAM (DRAM) cell, the capacitor is used to store charge, which represents the binary data.
Correct Answer:
B
— To store charge
Learn More →
Q. What is the main advantage of using a Field Effect Transistor (FET) in memory applications?
A.
Higher power consumption
B.
Lower input impedance
C.
Higher input impedance
D.
More complex fabrication
Show solution
Solution
FETs have a higher input impedance, which makes them suitable for memory applications as they draw less current from the preceding stage.
Correct Answer:
C
— Higher input impedance
Learn More →
Q. What is the main advantage of using FETs in semiconductor memory?
A.
Higher power consumption
B.
Lower input impedance
C.
Higher input impedance
D.
More complex fabrication
Show solution
Solution
FETs have a higher input impedance, which makes them suitable for low-power applications in semiconductor memory.
Correct Answer:
C
— Higher input impedance
Learn More →
Q. What is the primary characteristic of dynamic RAM (DRAM)?
A.
It requires constant refreshing
B.
It is faster than SRAM
C.
It uses a single transistor per bit
D.
It is non-volatile
Show solution
Solution
Dynamic RAM (DRAM) requires constant refreshing to maintain the stored data, as it uses capacitors that leak charge over time.
Correct Answer:
A
— It requires constant refreshing
Learn More →
Q. What is the primary function of a diode in a semiconductor memory circuit?
A.
To amplify signals
B.
To allow current to flow in one direction
C.
To store charge
D.
To switch signals
Show solution
Solution
Diodes are used in semiconductor memory circuits to allow current to flow in one direction, preventing reverse current that could damage the circuit.
Correct Answer:
B
— To allow current to flow in one direction
Learn More →
Q. What is the primary function of a rectifier in semiconductor memory?
A.
To convert AC to DC
B.
To amplify signals
C.
To store charge
D.
To switch signals
Show solution
Solution
Rectifiers are used in semiconductor memory to convert alternating current (AC) to direct current (DC), which is necessary for the operation of digital circuits.
Correct Answer:
A
— To convert AC to DC
Learn More →
Q. What is the primary purpose of a memory cell in semiconductor memory?
A.
To amplify signals
B.
To store binary data
C.
To convert signals
D.
To regulate voltage
Show solution
Solution
The primary purpose of a memory cell in semiconductor memory is to store binary data, which is essential for data retention.
Correct Answer:
B
— To store binary data
Learn More →
Q. What is the role of an operational amplifier (op-amp) in a memory circuit?
A.
To store data
B.
To amplify voltage signals
C.
To rectify AC signals
D.
To provide a reference voltage
Show solution
Solution
Op-amps are used in memory circuits primarily to amplify voltage signals, which is crucial for signal processing.
Correct Answer:
B
— To amplify voltage signals
Learn More →
Q. What is the role of an operational amplifier (op-amp) in memory circuits?
A.
To store data
B.
To amplify voltage signals
C.
To rectify AC signals
D.
To switch between memory states
Show solution
Solution
Op-amps are used in memory circuits primarily to amplify voltage signals, which is crucial for signal processing.
Correct Answer:
B
— To amplify voltage signals
Learn More →
Q. What type of rectifier is commonly used in power supply circuits for semiconductor memory?
A.
Half-wave rectifier
B.
Full-wave rectifier
C.
Bridge rectifier
D.
Zener rectifier
Show solution
Solution
Bridge rectifiers are commonly used in power supply circuits for semiconductor memory as they provide full-wave rectification.
Correct Answer:
C
— Bridge rectifier
Learn More →
Q. Which of the following is a key feature of static RAM (SRAM)?
A.
It is slower than DRAM
B.
It is volatile
C.
It requires more transistors per bit
D.
It is less expensive than DRAM
Show solution
Solution
Static RAM (SRAM) requires more transistors per bit compared to DRAM, which makes it faster but also more expensive.
Correct Answer:
C
— It requires more transistors per bit
Learn More →
Q. Which property of semiconductors allows them to be used in memory devices?
A.
High thermal conductivity
B.
Variable conductivity
C.
Low melting point
D.
High density
Show solution
Solution
The variable conductivity of semiconductors, which can be altered by doping, allows them to be effectively used in memory devices.
Correct Answer:
B
— Variable conductivity
Learn More →
Q. Which type of memory uses floating-gate transistors to store data?
A.
Dynamic RAM
B.
Static RAM
C.
Flash memory
D.
Read-Only Memory
Show solution
Solution
Flash memory uses floating-gate transistors to store data, allowing for non-volatile storage.
Correct Answer:
C
— Flash memory
Learn More →
Q. Which type of semiconductor memory uses floating gate technology?
A.
SRAM
B.
DRAM
C.
Flash memory
D.
EPROM
Show solution
Solution
Flash memory utilizes floating gate technology to store data, allowing it to retain information without power.
Correct Answer:
C
— Flash memory
Learn More →
Showing 1 to 15 of 15 (1 Pages)
