Programmable Logic Devices (PLDs) MCQs

By: Prof. Dr. Fazal Rehman Shamil | Last updated: June 8, 2024

What does PLD stand for?

a) Programmable Logic Device
b) Primary Logic Device
c) Programmed Logic Device
d) Practical Logic Device
Answer: a) Programmable Logic Device
Which of the following is a type of PLD?

a) FPGA
b) CPU
c) RAM
d) GPU
Answer: a) FPGA
What does FPGA stand for?

a) Field-Programmable Gate Array
b) Fast-Programmable Gate Array
c) Field-Processed Gate Array
d) Fast-Processed Gate Array
Answer: a) Field-Programmable Gate Array
Which type of PLD is typically used for complex digital circuits that require high performance and flexibility?

a) PROM
b) PLA
c) FPGA
d) CPLD
Answer: c) FPGA
What does CPLD stand for?

a) Complex Programmable Logic Device
b) Compact Programmable Logic Device
c) Controlled Programmable Logic Device
d) Combined Programmable Logic Device
Answer: a) Complex Programmable Logic Device
Which PLD is characterized by having a fixed number of logic gates and a simpler design compared to FPGAs?

a) PROM
b) PLA
c) FPGA
d) CPLD
Answer: d) CPLD
What is the primary function of a PLD?

a) Data storage
b) Logic implementation
c) Signal amplification
d) Power regulation
Answer: b) Logic implementation
Which type of memory is typically used to configure an FPGA?

a) Flash memory
b) SRAM
c) DRAM
d) ROM
Answer: b) SRAM
What is the main difference between PLA and PAL?

a) PLA is reprogrammable, PAL is not
b) PLA has a programmable AND array, PAL has a fixed AND array
c) PAL is faster than PLA
d) PLA is larger than PAL
Answer: b) PLA has a programmable AND array, PAL has a fixed AND array
What does PROM stand for?

a) Programmable Read-Only Memory
b) Permanent Read-Only Memory
c) Processed Read-Only Memory
d) Primary Read-Only Memory
Answer: a) Programmable Read-Only Memory
Which PLD type uses antifuse technology for programming?

a) PROM
b) FPGA
c) CPLD
d) PLA
Answer: a) PROM
Which of the following is not a typical application of PLDs?

a) Digital signal processing
b) Implementing custom logic circuits
c) Data storage
d) Prototyping digital designs
Answer: c) Data storage
Which tool is commonly used to program FPGAs?

a) VHDL or Verilog
b) Assembly language
c) Machine code
d) High-level programming language
Answer: a) VHDL or Verilog
What is the advantage of using an FPGA over a fixed-function IC?

a) Lower power consumption
b) Higher speed
c) Reconfigurability
d) Smaller size
Answer: c) Reconfigurability
What is the purpose of the configuration logic block in an FPGA?

a) To store user data
b) To define the logic functions of the FPGA
c) To regulate power supply
d) To handle input/output operations
Answer: b) To define the logic functions of the FPGA
Which type of PLD is typically used for simpler logic functions and has a fixed OR array?

a) FPGA
b) PLA
c) PAL
d) CPLD
Answer: c) PAL
In a CPLD, what is the function of the macrocell?

a) To perform arithmetic operations
b) To store configuration data
c) To implement logic functions
d) To manage power distribution
Answer: c) To implement logic functions
Which of the following statements is true about FPGAs?

a) They are programmed using only hardware description languages.
b) They cannot be reprogrammed once configured.
c) They are less flexible than CPLDs.
d) They have a fixed logic function.
Answer: a) They are programmed using only hardware description languages.
Which PLD is typically used in applications requiring high-speed and low-latency operations?

a) PROM
b) PLA
c) FPGA
d) PAL
Answer: c) FPGA
What is a primary advantage of using PLDs in digital circuit design?

a) Permanent storage of data
b) Fixed functionality
c) Customizable logic implementation
d) High power consumption
Answer: c) Customizable logic implementation

MCQs of Digital Logic Design (DLD)

Introduction to Digital Systems

1. Analog vs. Digital signals MCQs
2. Binary numbers and arithmetic MCQs
3. Logic levels and noise margins MCQs

Boolean Algebra

1. Basic logic operations (AND, OR, NOT) MCQ
2. Laws and theorems of Boolean algebra MCQ
3. De Morgan’s Theorems MCQ
4. Canonical forms (Sum of Products, Product of Sums) MCQ
5. Simplification techniques (Karnaugh Maps, Quine-McCluskey method) MCQ

Combinational Logic

Logic Gates

1. Basic gates (AND, OR, NOT) Gat MCQ
2. Universal gates (NAND, NOR) Gat MCQs
3. XOR and XNOR gates MCQ

Combinational Circuits

1. Design and analysis of combinational circuits MCQ
2. Multiplexers and Demultiplexers MCQ
3. Encoders and Decoders MCQ
4. Binary Adders (Half adder, Full adder) MCQ
5. Subtractors and Arithmetic Logic Units (ALU) MCQ
6. Comparators MCQ in DLD

Sequential Logic

Flip-Flops and Latches

1. SR Latch, D Latch MCQ
2. Flip-Flops (SR, D, JK, T) MCQ
3. Characteristic equations and excitation tables MCQ
4. Edge-triggered vs. level-triggered devices MCQ

Counters and Registers

1. Synchronous, Asynchronous (ripple), Up/Down counters MCQs
2. Shift registers (SIPO, PISO, SISO, PIPO) MCQs

State Machines

Finite State Machines (FSMs)

1. Moore and Mealy machines MCQs

Memory and Programmable Logic MCQs

Memory Devices

1. Read-Only Memory (ROM)
2. Random Access Memory (RAM)
3. Programmable Logic Devices (PLDs) MCQs
4. Field Programmable Gate Arrays (FPGAs) MCQs

More MCQs of Digital Logic Design (DLD)

• • SET 1: DLD MCQs with answers (dld mcqs with answers)
  • SET 2: DLD MCQs (dld basic mcqs)
  • SET 3: DLD MCQs (solved mcqs of dld)
  • SET 4: DLD MCQs (dld repeated mcqs)
  • SET 5: DLD MCQs (dld important mcqs)
  • SET 6:DLD MCQs DLD Solved MCQs Answers PDF

MCQs collection of solved and repeated MCQs with answers for the preparation of competitive exams, admission test and job of PPSC, FPSC, UPSC, AP, APPSC, APSC, BPSC, PSC, GOA, GPSC, HPSC, HP, JKPSC, JPSC, KPSC, KERALAPSC, MPPSC, MPSC, MPSCMANIPUR, MPSC, NPSC, OPSC, RPSC, SPSCSKM, TNPSC, TSPSC, TPSC, UPPSC, UKPSC, SPSC, KPPSC, BPSC, AJKPSC ALPSC, NPSC, LPSC, SCPSC, DPSC, DCPSC, PSC, UPSC, WVPSC, PSCW, and WPSC.