Engineering Interview Questions
Questions Answers Views Company eMail

our 125 kva DG does not start in AUTO mode works normally in MANUAL mode please give me a solution.....

SWR,

1169

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

1070

how to calculate steel for slab or footings?

1163

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.5 : In a wavefunction, let P(x) = A cos kx + B sin kx. By using the boundary conditions of x = 0 and x = l, where P(0) = P(l) = 0, prove by mathematical calculation that P(x) = B sin (npx / l) where p = 22 / 7 approximately, n is a rounded number. A, B and k are constants.

1 1508

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.6 : In N + 1 Rule in Quantum Chemistry, whenever a spin 1 / 2 nucleus is adjacent to N other nuclei, it is split into N + 1 distinct peaks. In 1 peak or singlet, there is only 1 magnitude. In 2 peaks or doublet, the ratio of magnitude of each peak is 1 : 1. In 3 peaks or triplet, the ratio of magnitude of each peak is 1 : 2 : 1. In 4 peaks or quartet, the ratio of magnitude of each peak is 1 : 3 : 3 : 1. In 5 peaks or quintet, the ratio of magnitude of each peak is 1 : 4 : 6 : 4 : 1. (a) By using binomial coefficients or Triangle of Pascal find the ratio of magnitude of each peak if 6 peaks exists. (b) How many adjacent nuclei are available in a spin 1 / 2 nucleus in such situation of 6 peaks?

1 1419

What is the significance of cost estimate knowledge for an architect?

1115

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.7 : (a) The correct statement about both the average value of position () and momentum (

) of a 1-dimensional harmonic oscillator wavefunction is =

= 1 - x. Find the value of x. (b) The probabilities of finding a particle around points A, B and C in the wavefunction y = f(x) are P(A), P(B) and P(C) respectively. Coordinates are A (3,5), B (4,-10) and C (6,7). Arrange P(A), P(B) and P(C) in term of a < b < c, when | y-coordinate | signifies the probability.

1 1860

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.8 : (a) Acceptable wavefunction in quantum mechanics in the range of : negative infinity < x < positive infinity, vanishes at least at one boundary. Which of the following is the wavefunction or are the wavefunctions of acceptable theory : P = x, P = | x |, P = sin x, P = exp (-x), P = exp (-| x |)? State the reason. (b) Let linear momentum operator P = -ih d / dz. The wavefunction is S = exp (-ikz) where i x i = -1, k and h are constants. Find the linear momentum of such wavefunction by using the term P x S.

1 1551

How to find beam R/F cutting length

1206

Question 112 - In quantum computing, let the amplitude A = a | 0 > + b | 1 >, | a | | a | + | b | | b | = 1. Find the values of b if A = 0.8 | 0 > + b | 1 >.

1 1514

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.9 : When an algebraic product is defined on the space, the Lie bracket is the commutator [x,y] = xy - yx according to Lie algebra in mathematics. If [p,x] f(x) = px f(x) - xp f(x), p = -ih d / dx, find the value of [p,x] in term of i and h.

1 1778

where you wants to see you after 5 year?

Tech Mahindra,

1 1832

How calculated single phase induction motor req. Capacitor?

1099

QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.10 : There are 6 spin orbitals in p subshell in a ground state carbon atom. Only 2 electrons fill the p subshell. Number of different ways for n electrons to occupy the k spin orbitals are k! / [ (n!) (k-n)! ]. Find the number of different configurations of electrons to occupy the p subshell in a carbon atom.

1 1406

QUANTUM COMPUTING - EXAMPLE 32.1 : In quantum computing, let the amplitude A = a | 0 > + b | 1 >, | a | | a | + | b | | b | = 1. Find the values of b if A = 0.8 | 0 > + b | 1 >.

1 1520


Un-Answered Questions { Engineering }

I have 200kg weight cylinder,I want to rotate,but i don't know what is torque of cylinder and what's size of motor for rotate the cylinder.i want to know calculations find out torque of cylinder.

2138


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

1736


Tell us what is binding?

1


Explain why gas containers are mostly cylindrical in shape?

626


How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

1481






When do we need drive test?

1745


How to Shut-down the system through QTP Script?

1345


what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

3562


how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

2677


What do you mean by ducting?

656


What causes white smoke in two stroke locomotive engines?

819


Which brick is best for construction ,either fly ash or AAC BLOCKS

562


Discuss about Baluchar Buttedar.

5


Advantages of using generator circuit breaker (GCB) scheme in a power station ?

4708


what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

1531