1. VLSI stands for:
(A) Very Large Scale Integration
(B) Variable Logic Signal Integration
(C) Very Low Signal Interface
(D) Virtual Logic System Integration
2. VLSI technology involves the integration of:
(A) Millions of transistors on a single chip
(B) One transistor per chip
(C) Only analog circuits
(D) Only power circuits
3. The main advantage of VLSI technology is:
(A) High speed and low power consumption
(B) Large size and high cost
(C) Complex wiring
(D) High noise generation
4. The basic building block of digital VLSI circuits is:
(A) Logic gate
(B) Transformer
(C) Inductor
(D) Resistor
5. MOSFETs are widely used in VLSI because they:
(A) Consume less power and occupy less space
(B) Require high voltage
(C) Are slower than BJTs
(D) Are difficult to fabricate
6. The two main design approaches in VLSI are:
(A) Full custom and semi-custom design
(B) Analog and digital design
(C) Small scale and large scale
(D) Bipolar and CMOS design
7. CMOS technology uses:
(A) Complementary NMOS and PMOS transistors
(B) Only NMOS transistors
(C) Only PMOS transistors
(D) Bipolar transistors
8. The main advantage of CMOS logic over TTL logic is:
(A) Low power dissipation
(B) High power requirement
(C) Larger size
(D) Higher voltage levels
9. The physical layout of a VLSI chip is represented by:
(A) Mask layout
(B) Circuit diagram
(C) Truth table
(D) Block diagram
10. The fabrication of VLSI circuits is done on:
(A) Silicon wafers
(B) Glass plates
(C) Plastic sheets
(D) Aluminum foil
11. The process of designing the circuit functionality is called:
(A) Logic design
(B) Layout design
(C) Physical design
(D) Mask generation
12. The physical design step in VLSI involves:
(A) Placement and routing of components
(B) Writing code for logic
(C) Testing software
(D) Compiling HDL code
13. HDL stands for:
(A) Hardware Description Language
(B) High Design Layout
(C) Hardware Design Logic
(D) High Density Logic
14. Examples of HDL are:
(A) VHDL and Verilog
(B) C and Python
(C) Java and Kotlin
(D) Assembly and COBOL
15. The primary goal of VLSI design automation tools is to:
(A) Reduce design time and complexity
(B) Increase chip size
(C) Decrease speed
(D) Eliminate digital logic
16. ASIC stands for:
(A) Application Specific Integrated Circuit
(B) Advanced System Integrated Controller
(C) Analog Signal Integrated Chip
(D) Automated Silicon Interconnect Circuit
17. FPGA stands for:
(A) Field Programmable Gate Array
(B) Fixed Processing Gate Array
(C) Fast Programmable Graphics Adapter
(D) Functional Power Grid Array
18. The main advantage of an FPGA is:
(A) Reconfigurability after fabrication
(B) Permanent logic configuration
(C) High fabrication cost
(D) Slow operation
19. The term “scaling” in VLSI design refers to:
(A) Reducing the size of transistors and interconnections
(B) Increasing chip power
(C) Increasing transistor count
(D) Expanding chip area
20. Power dissipation in CMOS circuits mainly occurs during:
(A) Switching transitions
(B) Idle state
(C) DC operation
(D) Leakage path removal
21. Interconnects in VLSI are used for:
(A) Connecting various components on a chip
(B) Amplifying signals
(C) Storing data
(D) Generating clock pulses
22. The design rule checking (DRC) ensures:
(A) Layout follows manufacturing constraints
(B) Logic correctness
(C) Functionality testing
(D) Simulation accuracy
23. The process of verifying logical correctness of a design is called:
(A) Simulation
(B) Fabrication
(C) Synthesis
(D) Routing
24. The process of converting HDL code into gate-level netlist is called:
(A) Synthesis
(B) Simulation
(C) Placement
(D) Routing
25. The most commonly used semiconductor material for VLSI chips is:
(A) Silicon
(B) Germanium
(C) Gallium Arsenide
(D) Indium Phosphide
26. The clock distribution network in a chip is used to:
(A) Synchronize all sequential elements
(B) Provide data storage
(C) Reduce signal power
(D) Filter noise
27. The yield of a VLSI process depends on:
(A) Defect density and chip area
(B) Frequency of operation
(C) Input voltage
(D) Clock speed
28. The packaging of a VLSI chip provides:
(A) Mechanical protection and electrical connections
(B) Amplification of signals
(C) Noise reduction
(D) Software interface
29. EDA tools are primarily used in VLSI for:
(A) Electronic Design Automation
(B) Electrical Device Analysis
(C) Energy Distribution Application
(D) Error Detection Algorithm
30. The main trend in VLSI design is towards:
(A) Higher integration and lower power
(B) Larger chip size and higher voltage
(C) Manual layout design
(D) Fewer transistors per chip