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2 days ago | [YT] | 30

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Happy New Year Guys 🍾🥳

3 days ago | [YT] | 32

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🚀 Top 10 Centrifugal Pump Interview Questions & Answers

Centrifugal pumps are one of the most frequently asked topics in interviews for Chemical, Mechanical, and Process Engineers—from campus placements to EPC and refinery roles.

If you understand the concepts, not just definitions, you stand out immediately.

1️⃣ What is a centrifugal pump?
Answer: A pump that converts mechanical energy into hydraulic energy using centrifugal force generated by a rotating impeller.

2️⃣ Why priming is required?
Answer: Because centrifugal pumps cannot pump air; liquid is required to create suction.

3️⃣ What is NPSH?
Answer: Net Positive Suction Head ensures liquid does not vaporize at the pump suction, preventing cavitation.

4️⃣ Difference between NPSH available and required?
Answer: NPSHa is system-dependent; NPSHr is pump-dependent.

5️⃣ What is cavitation?
Answer: Formation and collapse of vapor bubbles due to low pressure, causing noise, vibration, and damage.

6️⃣ What happens if discharge valve is closed?
Answer: Flow becomes zero, temperature rises, and pump may get damaged if run for long.

7️⃣ Why pumps are started with discharge valve closed?
Answer: To reduce starting load and power consumption.

8️⃣ What is pump efficiency?
Answer: Ratio of hydraulic power output to shaft power input.

9️⃣ Difference between centrifugal and positive displacement pump?
Answer: Centrifugal pumps are dynamic; PD pumps deliver fixed volume per cycle.

🔟 What factors affect pump performance?
Answer: Speed, impeller diameter, fluid properties, and system resistance.

💡 Tip for interviews:
Always link pump theory with real plant problems like cavitation, seal failure, vibration, and low flow.

📌 I’m preparing interview-focused engineering content to help students and young professionals crack technical rounds with confidence.

If you want prepare for an interview or resume building then you may book a one to one discussion slot, to book a slot DM us!

Happy learning!

#ChemicalEngineering #MechanicalEngineering #ProcessEngineering #CentrifugalPump
#EngineeringInterviews #Freshers
#EPC #PumpBasics #LearnCHE

5 days ago | [YT] | 62

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5 days ago | [YT] | 28

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Link of the video-
https://youtu.be/pJKsjrFy8fM

1 week ago | [YT] | 49

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History of PLC (Programmable Logic Controller) – Short

1. 1968: PLC was first invented by Dick Morley in the USA.
2. It was developed to replace hard-wired relay control panels used in industries.
2. The first PLC was Modicon 084, used in the automobile industry (GM).
3. PLCs made control systems flexible, reliable, and easy to modify.
4. 1970s–1980s: PLCs evolved with microprocessors, timers, counters, and communication features.
5. 1990s–Present: Advanced PLCs support networking, HMI, SCADA, motion control, and Industry 4.0.

In short: PLC changed industrial automation by replacing bulky relay logic with programmable, software-based control.

1 week ago | [YT] | 90

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Acronyms of Electrical and Electronics

🔌 Power & Electrical Quantities

AC – Alternating Current
DC – Direct Current
V – Voltage
I – Current
R – Resistance
P – Power
W – Watt
Hz – Hertz (Frequency)
VA – Volt Ampere
kW – Kilowatt
kVA – Kilovolt Ampere
PF – Power Factor

⚡ Electrical Components

MCB – Miniature Circuit Breaker
MCCB – Moulded Case Circuit Breaker
RCCB – Residual Current Circuit Breaker
ELCB – Earth Leakage Circuit Breaker
SP – Single Pole
DP – Double Pole
TP – Triple Pole
TPN – Triple Pole with Neutral

🔩 Machines & Equipment

HT – High Tension
LT – Low Tension
UPS – Uninterruptible Power Supply
SMPS – Switched Mode Power Supply
VFD – Variable Frequency Drive
DOL – Direct On Line (Starter)
OLR – Over Load Relay

🔄 Transformers & Systems

CT – Current Transformer
PT – Potential Transformer
1Φ – Single Phase
3Φ – Three Phase
Y – Star Connection
Δ (Delta) – Delta Connection

🧪 Protection & Safety

IP – Ingress Protection
IEC – International Electrotechnical Commission
IS – Indian Standards
IEEE – Institute of Electrical and Electronics Engineers

🛠️ Wiring & Installation

PVC – Polyvinyl Chloride
GI – Galvanized Iron
SWG – Standard Wire Gauge
AWG – American Wire Gauge

2 weeks ago | [YT] | 65

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Agar abhi tak apne ye video nahi dekhi to jaldi kariye or janiye high salary CAD software konsa hain ?

2 weeks ago | [YT] | 16

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SCADA system ka main function kya hota hai?

2 weeks ago | [YT] | 16

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Link of the video-
https://youtu.be/M37Vkvf2Tsg

2 weeks ago | [YT] | 35