Engineering Interview Questions
Questions Answers Views Company eMail

What is condensate lift?

8

Is there a quick rule-of-thumb to estimate a gas side heat-transfer rate inside the tubes of a shell and tube heat exchanger?

9

Are some heat transfer services more prone to tube vibration that others for a shell and tube exchanger?

8




How is plate heat exchangers used in an ammonia refrigeration system?

12

How can you keep our seawater used for heat rejection clean before entering our heat exchangers?

7

Is there a difference in mtd (mean temperature difference) between 'e' and 'j' (divided flow) type shell and tube heat exchangers?

9

What is a good source of equations for calculating discharge flowrates from accidental releases?

7

What is the definition of 'good' cooling tower water?

10

When an expansion is joint needed on the shell side of a shell and tube heat exchanger?

9

When specifying a cooling tower, should I look up historic wet bulb temperatures for my area or should I take measurements?

6

What does the catalystic converter on an automobile really do?

6

What factors go into designing the vapor space of kettle type reboiler?

9

What is a barometric condenser?

11

What is some good advice for specifying allowable pressure drops in shell and tube exchangers for heavy hydrocarbons?

6

What is a good approximation for the heat transfer coefficient of hydrocarbons inside 3/4" tubes?

8







Un-Answered Questions { Engineering }

please briefly explain calculating or estimating steel quantity for a RCC column?

774


What are octal and hexadecimal systems?

5


After synchronization with grid what is the demand value QKVAR and how we will maintain that?

990


how to identify vector group of three phase transformer by voltage method?

505


Hi dost here Alok Kumar please send question pattern for NIC at godinall.kumar1@gmail.com or alok.iitb07@gmail.com

857






I currently use 17-7 PH stainless which is hardened to condition CH after forming. raw matl is .1.75"X .12" X .008". Its main usage after hardening is silicon wafer retainer where it's contantly cycled up and down to putin and remove wafer after 40-60 sec process at 400C temp. At this high temperature this part seemed to deform after a a couple of hundred wafer which is what it was designed for in the first place. THere is a proposal to go to a different material to increase lifeline of this part. My question is..... can 321 SST be a plugin replacement. I know this has a higher temp rating but how about its forming characteristics, will it have spring properties, and wont become brittle after prolonged exposure to 400C.

1381


Difference between On Line capacitor and Station Type capacitor.

1005


what is auto re-closer?

1270


Why MUX JB's are using only Temperature Element in Fundation field bus?

831


What is the use of hydrogen in automobile?

11


Why do we avoid electrical conduits in floors at apartments?

868


What is the principle of mechanical refrigeration ?

4


by what factor the starting current is used when comparing star and delta connection for motor starting?

949


Which type of welding is used for welding of duplex and super duplex steel?

1


(Project Management Topic) What are the important criteria in the successful realization of the project?

993