Engineering Interview Questions
Questions Answers Views Company eMail

how to turbine speed measurement?

Jindal Steel and Power,

1148

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

PPIL,

1255

How to calculate canal slope curvature qty!

1289

How to calculate tonnage for embossing or serration washer?

IIS,

1 1843

How to convert three phase to single phase in ups

1085

CHEMICAL MATERIAL BALANCE – EXAMPLE 2.2 : Three hundred gallons of a mixture containing 75.0 wt % ethanol and 25 wt % water (mixture specific gravity = 0.877) and a quantity of a 40.0 wt % ethanol - 60 wt % water mixture (specific gravity = 0.952) are blended to produce a mixture containing 60.0 wt % ethanol. The specific gravity of a substance is the ratio of density of a substance compared to the density of water. The symbol of weight percent is wt %. (a) Estimate the specific gravity of the 60 % mixture by assuming that y = mx c where y is wt % ethanol, x is mixture specific gravity. Values for m and c are constants. (b) Determine the required volume of the 40 % mixture.

1 2966

how to operate and maintenance of 1500 kva diesel generator set

Supertech,

1318

How to calculate the angle in electrical transmission line

1101

I have a problem with a valve (air to close). When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%. I tried to tune positioner then removed it, the problem still exist. Any idea

3 2602

CHEMICAL MATERIAL BALANCE - EXAMPLE 2.1 : Two methanol-water mixtures are contained in separate tanks. The first mixture contains 40.0 wt % methanol and the second contains 70.0 wt % methanol. If 200 kg of the first mixture is combined with 150 kg of the second, what are the mass and composition of the product? The symbol of weight percent is wt %.

1 1729

CHEMICAL MATERIAL BALANCE - EXAMPLE 2.3 : A 1.5 weight % aqueous salt solution is concentrated to 4 weight % in a single-effect evaporator. The feed rate to the evaporator is F = 7500 kg / h and the feed is at 85 degree Celsius. The evaporator operates at 1 bar. By assuming that only pure solvent of water exists in the form of vapor from the feed, calculate the flow rate of such vapor V.

1 1738

CHEMICAL MATERIAL BALANCE - EXAMPLE 2.4 : A mixture consists of benzene (B), toluene (T) and xylene (X). At a temperature of 353 K, the data of vapor pressures : B : 754.12, T : 289.71, X : 91.19. Unit is mm Hg. The pressure P is 0.5 atm. The value of k for each substance is k = (vapor pressure) / P. (a) Calculate k for B, T and X. Let L / V = 0.65. (b) By using the equation V = F / [ (L / V) + 1 ], find the value of V when F = 100, then what is the value of L?

1 1678

how convert sqft into cubic meter and cubic meter into sqft

1093

how many AAC blocks of size 600*200*225 mm are required for 1 cu.m of area

1 2168

If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

1515


Un-Answered Questions { Engineering }

Can we use the flyash bricks in brick bat coba?

1041


what is the cast iron grade of composition of c-3.06% , Mn- 0.48% , Si-2.38% , S-0.088% , P-0.092% , Cr-0.12% , Ni- 0.012% , Mo-0.00%

1603


How process line mpm calculation is done?

823


how to do sudoko puzaals?

1810


can u describe the method used for protection of transmission line.

1596






What are the advantages and disadvantages of air refrigeration system?

623


What is spy satellite?

434


What will be the call flow in case user doesn't answer the call

1736


AFTER OVERHAULING KTA19G3 AND JUST ABOUT TO START ,BUT WE DIDNT FIX THE OIL SUMP AND TEST FOR -WATER LEAK FROM LINER O RING SIDE,THEN WE FILLED WATER AND FOUND WATER LEAK FROM INSIDE OF ENGINE -CAM FOLLOWER SIDE PLEASE GIVE ADVICE TO RECTIFY THE SAME

1392


63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

2273


Explain mechanical rotational system?

617


What is PQA???Applications........

1860


difference between crane drive and line drive.

1380


What is the difference between the impedance percent and impedance voltage ?

1675


Is there any type of starter for DC motor other than two point,Three point and Four point starters?

1632