Engineering Answers

The molar volume of (V) a binary mixture of species 1 and 2 having mole fractions.x₁ and respectively is given by V = 220x+180x₂ + x₁x₁₂ (90.x₁ +50.x₂).

The partial molar volume of species 2 at x, = 0.3 is

(A) 183.06

(B) 212.34

(C) 229.54

(D)256.26

Consider a cylindrical body 30cm in length and 15cm in diameter at 327°C suspended in the air. Assuming the body closely approximates a blackbody, determine the rate at which the cylinder emits radiation energy

1. Three 25Ω loads are connected in STAR to a three-phase supply with a 230V phase voltage (Vp). Calculate the power dissipated by the system.

2. Simulate three 25Ω loads connected in STAR to a three-phase supply with a 230V phase voltage and measure the power dissipated using the one wattmeter method.

3. Explain why the one wattmeter method is unsuitable for an unbalanced system.

Determine the complex exponential of following signals

X(t) = cos (2t+π/4)

Determine the complex exponential of following signals X(t)=sin w0t

find that at what distance body A will attain a velocity of 3 m/s when starts from rest. Assume coefficient of friction as 0.2 for block and surface and pulleys are frictionless and weightless

A ball is projected at such an angle that the horizontal range is three times

the maximum height. What is the angle of projection?

A. 27.130 C. 53.130

B. 35.870 D. 67.240

Use appropriate Lagrange interpolating polynomials of degrees one, two, and three to approximate

each of the following:

a. f (8.4) if f (8.1) = 16.94410, f (8.3) = 17.56492, f (8.6) = 18.50515, f (8.7) = 18.82091

b. f −1

3  if f (−0.75) = −0.07181250, f (−0.5) = −0.02475000, f (−0.25) = 0.33493750,

f (0) = 1.10100000

c. f (0.25) if f (0.1) = 0.62049958, f (0.2) = −0.28398668, f (0.3) = 0.00660095, f (0.4) =

0.24842440

d. f (0.9) if f (0.6) = −0.17694460, f (0.7) = 0.01375227, f (0.8) = 0.22363362, f (1.0) =

0.65809197

Cache consists of a total of 128 blocks. The main memory contains 2K

blocks, each consisting of 32 words.

( I ) How many bits are there in each of the TAG, BLOCK and WORD

field in case of direct mapping?

( ii ) How many bits are there in each of the TAG, SET, and WORD

field in case of 4-way set-associative mapping?