Q. What is the role of the capacitor in an RC circuit?
-
A.
To provide a path for DC current
-
B.
To store and release energy
-
C.
To amplify the signal
-
D.
To rectify the signal
Solution
The capacitor in an RC circuit stores electrical energy and releases it, affecting the timing and filtering characteristics of the circuit.
Correct Answer:
B
— To store and release energy
Learn More →
Q. What is the role of the client in a client-server database architecture?
-
A.
To store the database
-
B.
To send requests to the server
-
C.
To manage transactions
-
D.
To perform data backups
Solution
The role of the client in a client-server database architecture is to send requests to the server.
Correct Answer:
B
— To send requests to the server
Learn More →
Q. What is the role of the collector in a BJT?
-
A.
To provide biasing
-
B.
To inject charge carriers
-
C.
To collect charge carriers
-
D.
To control the base current
Solution
The collector in a BJT is responsible for collecting charge carriers from the base region.
Correct Answer:
C
— To collect charge carriers
Learn More →
Q. What is the role of the DataSet in ADO.NET when working with XML?
-
A.
To execute SQL commands
-
B.
To provide a disconnected data architecture
-
C.
To manage database connections
-
D.
To perform data validation
Solution
The DataSet provides a disconnected data architecture, allowing data to be manipulated without a constant connection to the database.
Correct Answer:
B
— To provide a disconnected data architecture
Learn More →
Q. What is the role of the discharge pin in a 555 timer?
-
A.
To charge the timing capacitor
-
B.
To reset the timer
-
C.
To discharge the timing capacitor
-
D.
To control the output frequency
Solution
The discharge pin is used to discharge the timing capacitor when the output goes low.
Correct Answer:
C
— To discharge the timing capacitor
Learn More →
Q. What is the role of the inductor in an RLC circuit at resonance?
-
A.
To store energy in the electric field
-
B.
To store energy in the magnetic field
-
C.
To dissipate energy as heat
-
D.
To block AC signals
Solution
At resonance, the inductor stores energy in the magnetic field.
Correct Answer:
B
— To store energy in the magnetic field
Learn More →
Q. What is the role of the instruction register in a microprocessor?
-
A.
To store the next instruction to be executed
-
B.
To hold data temporarily
-
C.
To manage input/output operations
-
D.
To control the clock speed
Solution
The instruction register holds the current instruction that is being executed by the microprocessor.
Correct Answer:
A
— To store the next instruction to be executed
Learn More →
Q. What is the role of the magnetic field in a transformer?
-
A.
To store energy
-
B.
To induce voltage in the secondary winding
-
C.
To dissipate heat
-
D.
To filter signals
Solution
The magnetic field in a transformer is crucial for inducing voltage in the secondary winding through electromagnetic induction.
Correct Answer:
B
— To induce voltage in the secondary winding
Learn More →
Q. What is the role of the NAT table?
-
A.
To store routing information
-
B.
To keep track of active connections and their translations
-
C.
To manage bandwidth allocation
-
D.
To log network traffic
Solution
The NAT table keeps track of active connections and their translations between private and public IP addresses, allowing NAT to function correctly.
Correct Answer:
B
— To keep track of active connections and their translations
Learn More →
Q. What is the role of the Root Bridge in Spanning Tree Protocol?
-
A.
To forward all traffic
-
B.
To act as a reference point for path selection
-
C.
To block all ports
-
D.
To manage IP address assignments
Solution
The Root Bridge serves as a reference point for all path calculations in the STP topology.
Correct Answer:
B
— To act as a reference point for path selection
Learn More →
Q. What is the significance of 'logic density' in PLDs?
-
A.
It refers to the power consumption
-
B.
It indicates the number of logic gates per unit area
-
C.
It measures the speed of operation
-
D.
It defines the programming time
Solution
Logic density refers to the number of logic gates that can be integrated into a given area of the PLD, impacting its complexity and capability.
Correct Answer:
B
— It indicates the number of logic gates per unit area
Learn More →
Q. What is the significance of the 'Schema' in XML when used with ADO.NET?
-
A.
It defines the structure of the XML data
-
B.
It improves the performance of data access
-
C.
It is used to encrypt XML data
-
D.
It allows for data compression
Solution
The schema defines the structure of the XML data, ensuring that the data adheres to a specific format.
Correct Answer:
A
— It defines the structure of the XML data
Learn More →
Q. What is the significance of the natural frequency (ω_n) in reactive circuits?
-
A.
It determines the maximum current
-
B.
It indicates the frequency of oscillation
-
C.
It affects the voltage drop
-
D.
It is irrelevant
Solution
The natural frequency (ω_n) in reactive circuits indicates the frequency at which the system would oscillate if not damped.
Correct Answer:
B
— It indicates the frequency of oscillation
Learn More →
Q. What is the significance of the time constant in reactive circuits?
-
A.
It determines the frequency response
-
B.
It indicates the speed of response
-
C.
It defines the maximum voltage
-
D.
It sets the power rating
Solution
The time constant in reactive circuits indicates the speed of response to changes in voltage or current.
Correct Answer:
B
— It indicates the speed of response
Learn More →
Q. What is the simplified form of A AND A?
-
A.
A
-
B.
0
-
C.
1
-
D.
A AND 1
Solution
According to the Idempotent Law, A AND A simplifies to A.
Correct Answer:
A
— A
Learn More →
Q. What is the simplified form of the expression A AND (A OR B)?
-
A.
A
-
B.
B
-
C.
A OR B
-
D.
A AND B
Solution
Using the Absorption Law, A AND (A OR B) simplifies to A.
Correct Answer:
A
— A
Learn More →
Q. What is the simplified form of the expression A AND (B OR C)?
-
A.
A AND B
-
B.
A AND C
-
C.
A AND (B AND C)
-
D.
A AND B OR A AND C
Solution
This follows the Distributive Law, which states A AND (B OR C) = A AND B OR A AND C.
Correct Answer:
D
— A AND B OR A AND C
Learn More →
Q. What is the size of an IPv6 address?
-
A.
32 bits
-
B.
64 bits
-
C.
128 bits
-
D.
256 bits
Solution
An IPv6 address is 128 bits long, which allows for a significantly larger number of unique addresses compared to the 32-bit IPv4 address.
Correct Answer:
C
— 128 bits
Learn More →
Q. What is the size of an IPv6 address?
-
A.
32 bits
-
B.
64 bits
-
C.
128 bits
-
D.
256 bits
Solution
An IPv6 address is 128 bits long, which allows for a significantly larger number of unique addresses compared to the 32-bit IPv4 address.
Correct Answer:
C
— 128 bits
Learn More →
Q. What is the size of an IPv6 address?
-
A.
32 bits
-
B.
64 bits
-
C.
128 bits
-
D.
256 bits
Solution
An IPv6 address is 128 bits long, which allows for a significantly larger number of unique addresses compared to the 32-bit IPv4 address.
Correct Answer:
C
— 128 bits
Learn More →
Q. What is the size of the internal RAM in the 8051 microcontroller?
-
A.
128 bytes
-
B.
256 bytes
-
C.
512 bytes
-
D.
64 bytes
Solution
The internal RAM size of the 8051 microcontroller is 128 bytes.
Correct Answer:
A
— 128 bytes
Learn More →
Q. What is the small-signal model of a diode used for in a series circuit?
-
A.
To analyze large signal behavior
-
B.
To simplify AC analysis
-
C.
To determine power loss
-
D.
To measure capacitance
Solution
The small-signal model of a diode is used to simplify the analysis of AC signals in a series circuit.
Correct Answer:
B
— To simplify AC analysis
Learn More →
Q. What is the small-signal model of a diode used for in series circuits?
-
A.
To analyze high-frequency behavior
-
B.
To determine DC operating points
-
C.
To simplify AC analysis
-
D.
To measure voltage drop
Solution
The small-signal model of a diode is used to simplify AC analysis in series circuits, allowing for easier calculations of circuit behavior.
Correct Answer:
C
— To simplify AC analysis
Learn More →
Q. What is the small-signal model used for in analyzing circuits with BJTs?
-
A.
To determine the DC operating point
-
B.
To analyze the frequency response
-
C.
To calculate power dissipation
-
D.
To measure input impedance
Solution
The small-signal model is used to analyze the frequency response of BJTs in circuits.
Correct Answer:
B
— To analyze the frequency response
Learn More →
Q. What is the small-signal model used for in electronic circuits?
-
A.
To analyze large signal behavior
-
B.
To simplify the analysis of linear circuits
-
C.
To design power supplies
-
D.
To measure frequency response
Solution
The small-signal model is used to simplify the analysis of linear circuits by approximating the behavior of components around a bias point.
Correct Answer:
B
— To simplify the analysis of linear circuits
Learn More →
Q. What is the small-signal model used for in electronics?
-
A.
To analyze large signals
-
B.
To simplify circuit analysis for small variations
-
C.
To design power supplies
-
D.
To measure frequency response
Solution
The small-signal model simplifies circuit analysis for small variations around a bias point.
Correct Answer:
B
— To simplify circuit analysis for small variations
Learn More →
Q. What is the small-signal model used for in series circuits?
-
A.
To analyze large signal behavior
-
B.
To simplify the analysis of linear circuits
-
C.
To measure power consumption
-
D.
To determine frequency response
Solution
The small-signal model is used to simplify the analysis of linear circuits by approximating the behavior around a bias point.
Correct Answer:
B
— To simplify the analysis of linear circuits
Learn More →
Q. What is the term for the loss of energy in a transformer due to heat?
-
A.
Copper loss
-
B.
Iron loss
-
C.
Stray loss
-
D.
Hysteresis loss
Solution
Iron loss refers to the energy lost in a transformer due to heat in the core material.
Correct Answer:
B
— Iron loss
Learn More →
Q. What is the time constant for an RL circuit defined as?
-
A.
L/R
-
B.
R/L
-
C.
L*R
-
D.
1/(L*R)
Solution
The time constant for an RL circuit is defined as L/R, where L is inductance and R is resistance.
Correct Answer:
A
— L/R
Learn More →
Q. What is the time response of a first-order system characterized by?
-
A.
Second-order differential equation
-
B.
First-order differential equation
-
C.
Zero-order differential equation
-
D.
Third-order differential equation
Solution
The time response of a first-order system is characterized by a first-order differential equation.
Correct Answer:
B
— First-order differential equation
Learn More →
Showing 931 to 960 of 1509 (51 Pages)
