CrazyEngineers

PRADIP CHAKRABORTY
@pradip-MzE4HZ • Mar 20, 2026

Mar 20, 2026

28

PAN CARBON FIBRE

Please let me have the Machining property details of Carbon Fiber components and the details of Drilling, milling cutter used to machine it.

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Difficulty - Medium

Total Plays - 5

Allowed Time - 15 sec

Best time - --

Calculate in Mind: 4% of 475

Tip: Click "Play" to reveal options and start playing.

#A

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#D

Explanation:
Easy way to calculate: 1% of 475 = 4.75. Now to calculate 4%, multiple 4 by '4' to get 16, and then multiple 4 x 0.75 which is 3. Answer must be 16 + 3 = 19.

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Kaustubh Katdare
@thebigk • Mar 16, 2026

Mar 16, 2026

138

Solved: 8 = 88, 7 = 70, 6 = 54, 5 = 40, 3 = ?

Let's try to solve this puzzle: 8 = 88, 7 = 70, 6 = 54, 5 = 40, 3 = ? This is one of the math puzzles were your...

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Krishna Dabholkar
@fresh-duster • Mar 14, 2026

Mar 14, 2026

100

Trading course?

I am 17 and just completed by board exams, any good and free trading courses which i can join during my free time?

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Kaustubh Katdare
@thebigk • Mar 13, 2026

Mar 13, 2026

111

JBL Live 780NC and 680NC launch with AI ANC, LDAC and up to 80-hour battery life

JBL is back with two new wireless headphones. And this time, it is coming for the people who usually default to Sony or Bose. The company has added the Live...

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Neha Sinha
@nehasinha • Mar 13, 2026

Mar 13, 2026

170

Macbook Neo for Python Development?

Hello CEans! I am new here. I'm a 3rd year Computer Science student. I am looking to buy a new laptop and Macbook Neo is in my budget range. I'll...

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Priya Mehta
@priyamehta • Mar 16, 2026

Mar 16, 2026

183

How can WhatsApp delete a photo from mobile when sender says delete for everyone?

If a photo is already on your phone, how can WhatsApp still delete it when the sender taps “Delete for Everyone”? Sorry if this isin the wrong section...

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Kaustubh Katdare
@thebigk • Mar 11, 2026

Mar 11, 2026

422

Google Expands Chrome AI Features and Gemini Integration to India, Canada, and New Zealand

Google has officially announced the expansion of its built-in artificial intelligence features for the Chrome browser, targeting users in India, New Zealand, and Canada. The update brings a suite of...

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Kaustubh Katdare
@thebigk • Mar 7, 2026

Mar 7, 2026

644

MacBook Neo Hardware and Specs: What You Get for $599

Apple seems to be experimenting again.Rumors and leaks suggest that Apple is working on a new entry-level laptop called the MacBook Neo, possibly priced around $599. If this turns out...

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Shyam Vijay
@shyamvijay • Feb 27, 2026

Feb 27, 2026

450

What Challenges Do Developers Face When Building Scalable AI Chatbot Applications?

As AI chatbot adoption continues to grow, businesses are increasingly integrating conversational systems into their web and mobile applications to automate support, improve engagement, and streamline communication. However, building chatbot...

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Kaustubh Katdare
@thebigk • Feb 27, 2026

Feb 27, 2026

250

Thoughts on OpwnClaw Bot aka (ClawdBot)?

OpenClaw aka ClawdBot seems to be dividing engineers. Some say it's productivity powerhouse, while other say it's got bugs and security issues. If anyone of you has used ClawdBot -...

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Kaustubh Katdare
@thebigk • Mar 11, 2026

Mar 11, 2026

344

Is AI Responsible for Layoffs in Indian IT Industry?

It's obvious that there's a slowdown across all the roles in Indian IT services industry. There were layoffs as well. Infosys, TCS, Cognizant, HCL, Wipro - all have laid off...

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Difficulty - Medium

Total Plays - 35

Allowed Time - 10 sec

Best time - 1.048 sec

What is type of null in JavaScript?

Tip: Click "Play" to reveal options and start playing.

#A

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#D

Explanation:
Due to a historical bug in JavaScript, typeof null returns "object". It is a well-known quirk of the language.

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Difficulty - Easy

Total Plays - 35

Allowed Time - 10 sec

Best time - 0.716 sec

What is type of (5,) in Python?

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#A

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#C

#D

Explanation:
The trailing comma makes it a tuple. Without the comma, (5) would just be an integer.

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Difficulty - Medium

Total Plays - 29

Allowed Time - 10 sec

Best time - 1.042 sec

What is the size of char in C programming language?

Tip: Click "Play" to reveal options and start playing.

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#D

Explanation:
In C, char is defined as exactly 1 byte. The actual number of bits in a byte is implementation-defined, but sizeof(char) is always 1.

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Difficulty - Medium

Total Plays - 25

Allowed Time - 10 sec

Best time - --

Which quantity remains constant in series circuit?

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#A

#B

#C

#D

Explanation:
In a series circuit, the same current flows through all components because there is only one path for charge flow. Voltage divides across components, but current remains constant throughout.

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Difficulty - Easy

Total Plays - 28

Allowed Time - 15 sec

Best time - 0.992 sec

In a certain code, CAT is written as DBU. How is DOG written in that code?

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#A

#B

#C

#D

Explanation:
Each letter is shifted forward by one position in the alphabet. D → E, O → P, G → H. So DOG becomes EPH.

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Difficulty - Medium

Total Plays - 18

Allowed Time - 10 sec

Best time - 5.821 sec

Choose the correct meaning of the word "Pragmatic"

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#A

#B

#C

#D

Explanation:
“Pragmatic” refers to dealing with things realistically and sensibly. It focuses on practical results rather than theories or emotions.

Leaderboard
Difficulty - Hard

Total Plays - 19

Allowed Time - 15 sec

Best time - 1.085 sec

A train 120 m long crosses a 180 m platform in 15 seconds. What is its speed?

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#A

#B

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#D

Explanation:
Total distance covered = 120 + 180 = 300 m. Speed = Distance ÷ Time = 300 ÷ 15 = 20 m/s.

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Kaustubh Katdare
@thebigk • Feb 19, 2026

Feb 19, 2026

192

CrazyEngineers Upgraded :: Welcome to New CE!

CrazyEngineers has just been upgraded to latest version of Jatra - the community platform that powers CE. We've a lot of new goodies packed! @abrakadabra

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