Explain how can one estimate how the friction factor changes in heat exchanger tubes with a change in temperature?

652

what shoud be strength and weakness to impress interviewer????????

1617

Mention two types of dislocations.

648

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3088

What is alzheimer’s disease?

523

When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

1691

The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?

1657

Can a wave happen in the middle of the ocean like in the movie poseidon 2006?

689

hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?

1653

what are differences b/w EIA 449 and EIA 530?

1698

I am haning thousands emails in my send box (which i sended.) Now i want to send all these emails (Total in send box)to other by email. Can i send total emails at one time (Not sending each indivisually) by one comand; Please tell the steps..Thanks.

1572

difference between power surge and switching transient

1525

Explain Circuit Breaker Trip Characteristics in detail.

1674

What is maximum recommend pipe velocity for dry and wet gases?

662

Define quality control?

1