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Engineering Interview Questions
Questions Answers Views Company eMail

X is strong but has a very low density (1% of traditional earth materials.) and hence light weight. It is a recyclable material. The compression behaviour of X is strain rate dependent. Higher strain rates result in higher initial modulus and higher compression strength. It can also withstand unlimited number of cycling loading provided the repetitive loads are kept below 80% of the compressive strength. The internal structure of the material includes air-traps which make it poor heat conductor. X is non- biodegradable and chemically inert in both soil and water. Most acids and their water solutions do not attack it; however strong oxidizing acids do. Solvents which attack X include esters, ketones, ethers, aromatic and aliphatic hydrocarbons and their emulsions, among others. It does not support bacterial/fungal growth as well .It also has significant acoustic properties and effectively reduces the transmission of airborne sound. X is combustible and should not be exposed to open flame or other ignition sources. Combustion products are carbon monoxide, carbon dioxide, water and soot. Long-term exposure to sunlight causes yellowing and a slight embrittlement of the surface due to ultraviolet light. X is able to withstand the rigours of temperature cycling, assuring long-term performance.

Ford,

1959

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1964

what is signal integrity and what is the use ?

2859

Why the single phase A.C motor taking more current than 3 phase A.C motor?

HCC,

2365

What is depreciation factor?

HCC,

2284

what sis the testing procedure of transformer and ht panel?

1 3857

what is the formula for converting dc power(watt) to ac power (watt)?

ABB,

3 9642

what is difference of NP3 and NP4 pipe and what is the thickness of 1000mm dia NP4 pipe

1 7098

why water's critical point is 4*c ?

Essar,

4 7159

in gas pipe line is running, and leakage is take place, if possible with out stop the gas is welding ? how ?

1 4330

in internal combtion engine, maximum efficiency is65%. than 35% losses. but why not decreased losses ? any reason behind this ?

1 7127

what"s the ratio for M30,M35,M40,M80 grade concrete?

7361

why ohmas low not sutable to transformer.

1 5044

why indicated sypply only by 440V in 3-phase system.

2 5164

what is burner management system?

Alstom,

2 11248


Un-Answered Questions { Engineering }

What is meant by voltage commutation?

1091


what is the advantages and dis advantages of critical speed of turbine.

2088


What are the main different elements of visual merchandising?

5


DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

2060


What is the need for load flow study?

1142


aptitutude and technical questions asked in HPCL MECHANICAL ENGG TEST PAPER. IF ANY ONE HAS SAMPLE PAPERS .PLEASE SEND ME ON MY E-MAIL ID . goyal.nirmal@gmail.com. plz

3052


What is meaning of out of phase (making & breaking) capacity And how to calculate

2266


What is Anemometer used to measure?

1139


What is slip in an induction motor?

1169


what is the minimum power (P=VI)to produce a spark?

2003


what is mean by Digital Logic Meter (DLM)

2396


Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

2184


Why Ac Systems Are Preferred Over Dc Systems?

1321


Explain why does catalytic converter used in an automobile?

1009


what is PDU in transformer?? which company manufacture??

1923