Engineering Basics
What is the power factor in an AC circuit?
Cosine of the phase angle between voltage and current (cosθ).
What is the difference between RAM and ROM?
RAM is volatile; ROM is non-volatile.
Which keyword is used to define a constant in C?
const.
What is the Nyquist rate formula?
2 × maximum frequency of signal.
What is the full form of IoT?
Internet of Things.
Cosine of the phase angle between voltage and current (cosθ).
Ohmmeter.
What is the output of NAND gate if both inputs are 1?
0
What is the full form of URL?
Uniform Resource Locator.
What is the unit of frequency?
Hz
What is cloud computing?
Delivery of computing services over the internet.
What is Kirchhoff’s Current Law (KCL)?
Sum of currents entering a node equals sum of currents leaving
How many flip-flops are required to design a 4-bit counter?
4 flip-flops
What does OS stand for?
Operating System.
What is attenuation?
Reduction in signal strength during transmission.
Who is known as the father of the computer?
Charles Babbage.
What is the unit of electrical power?
Watt.
What is a decoder?
A circuit that converts binary input into one of many outputs.
What is the difference between compiler and interpreter?
Compiler translates whole program at once; interpreter translates line by line.
What is bandwidth of a signal?
Difference between highest and lowest frequency components.
What is a semiconductor?
Material with conductivity between conductor and insulator.
What is the function of a transformer?
To step up or step down AC voltage.
What is propagation delay?
Time taken for output to respond to input change.
Which data structure uses FIFO principle?
Queue.
What is the basic advantage of digital communication over analog?
Better noise immunity.
What is the binary equivalent of decimal 15?
1111