QUIZ 26-09-25

What is the main function of a diode?

• To store energy
• To amplify signals
• To allow current in one direction only
• To convert AC to DC
• To block all current

Answer explanation

A diode allows current to flow in one direction only.

Which modulation technique is used in FM radio broadcasting?

• Amplitude Modulation
• Frequency Modulation
• Phase Modulation
• Pulse Code Modulation
• Delta Modulation

Answer explanation

FM stands for Frequency Modulation.

Which year was AI chatbot ChatGPT first launched to the public?

• 2019
• 2020
• 2022
• 2023
• 2021

Answer explanation

ChatGPT was launched in November 2022.

What is Ohm’s Law formula?

• V=IR
• V=I/R
• V=R/I
• V=I+R
• V=I-R

Answer explanation

Ohm’s Law: Voltage = Current × Resistance.

Which Indian cricketer completed 13,000 runs in ODI in 2023?

• Rohit Sharma
• Virat Kohli
• Sachin Tendulkar
• MS Dhoni
• Shubman Gill

Answer explanation

Virat Kohli reached 13,000 ODI runs in 2023.

If A=101 and B=111 in binary, what is A AND B?

• 101
• 111
• 100
• 110
• 1

Answer explanation

Bitwise AND: 101 & 111 = 101.

Which organization is referred to as ISRO?

• Indian Science Research Organization
• Indian Space and Rocket Organization
• Indian Space Research Organization
• International Space Research Organization
• Institute for Space Research

Answer explanation

ISRO = Indian Space Research Organization.

Which is the fastest sorting algorithm on average case?

• Bubble Sort
• Quick Sort
• Insertion Sort
• Merge Sort
• Heap Sort

Answer explanation

Quick Sort has average case O(n log n).

If the price of a shirt is Rs. 800 and a 20% discount is applied, what is the final price?

• Rs. 600
• Rs. 640
• Rs. 700
• Rs. 720
• Rs. 750

Answer explanation

20% discount = Rs. 800 - Rs. 160 = Rs. 640.

What is the output of printf("%d", 5+3*2); in C?

• 11
• 16
• 10
• 13
• 8

Answer explanation

Multiplication has higher precedence: 3*2=6, 6+5=11.