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ISRO 2006-ECE Eigen Values
The Eigen values of are: a) 6, 1 b) 6, -1 c) -6, 1 d) -6,-1

sh!va asked in Linear Algebra Mar 4, 2017

by sh!va

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3 answers

2

ISRO2006-ECE calculus

sh!va asked in Calculus Mar 4, 2017

by sh!va

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3

ISRO 2006-ECE Functions
$x^3$ + $x$ sin $x$ is a) Constant function b) Odd function c) Even function d) Periodic function

sh!va asked in Linear Algebra Mar 4, 2017

by sh!va

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4

ISRO 2006- ECE Probability
A box contains 5 black and 5 red balls. Two balls are one after another from the box, without replacement. The probability of both balls being red is a) 1/90 b) 1/5 c) 19/90 d) 2/9

sh!va asked in Probability Mar 4, 2017

by sh!va

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5

ISRO 2006-ECE Concurrent Lines
The value of k for which the lines 2x + y -1 = 0,4x + 3y - 3 = 0 and 3x + ky - 2 = 0. are concurrent is a) -2 b) 3 c) 2 d) -3

sh!va asked in Linear Algebra Mar 4, 2017

by sh!va

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6

ISRO 2006-ECE Matrix determinant
The determinant of is: a) 0 b) -1 c) 1 d) 2

sh!va asked in Linear Algebra Mar 4, 2017

by sh!va

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7

ISRO 2006- ECE K Map
The function shown in the figure when simplified will yield a result with _______ terms $2$ $4$ $7$ $14$

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

1.2k views

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1 answer

8

ISRO 2006-ECE
Given the decimal number -19 an eight bit two's complement representation is given by a) 11101110 b) 11101101 c) 11101100 d) none of these

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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9

ISRO 2006- ECE
If the memory chip size is 256 x 1 bits, then the number of chips required to make up 1K bytes of memory is a) 32 b) 24 c) 12 d) 8

sh!va asked in CO and Architecture Mar 3, 2017

by sh!va

1.3k views

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1 answer

10

ISRO 2006 -ECE Venn Diagrams
The Boolean expression for the shaded area in the Venn diagram is a) X'+Y' +Z b) XY'Z + X'YZ c) X + Y + Z d) X'Y'Z+XY

sh!va asked in Mathematical Logic Mar 3, 2017

by sh!va

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11

ISRO 2006- ECE Boolean algebra
For the switch circuit, taking open as 0 and closed as 1, the expression for the circuit is $\text{Y}$. $A+ (B+C) D$ $A+ BC +D$ $A (BC+D)$ None of these

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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12

ISRO 2006-ECE A/D converter
10 bit A/D converters, the quantization error is given by (in percent) a) 1 b) 2 c) 0.1 d) 0.2

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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13

ISRO 2006- ECE Gray code
Gray code for number 7 is a) 1100 b) 1001 c)0110 d) 0100

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

467 views

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1 answer

14

ISRO 2006-ECE Flipflops
Which of the following statements are correct ? 1. A flip-flop is used to store $1$ bit of information. 2. Race-around condition occurs in a $J$-$K$ flip-flop when both the inputs are $1$. 3. Master-slave configuration is used in flip-flops to store $2$ bits of information. 4. A transparent ... -type flip-flop. $1$,$2$ and $3$ $1$,$3$ and $4$ $1$,$2$ and $4$ $2$,$3$ and $4$

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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15

ISRO 2006-ECE WAIT states
WAIT states are used to a) Make the processor wait during a DMA operation b) Make the processor wait during a power interrupt processing c) Make the processor wait during a power shutdown d) Interface slow peripherals to the processor

sh!va asked in CO and Architecture Mar 3, 2017

by sh!va

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16

ISRO 2006-ECE A/D Converter
The A/D converter used in a digital voltmeter could be (1) successive approximation type (2) Flash converter type (3) Dual slope converter type. The correct sequence in the increasing order of their conversion times is a) 1,2,3 b) 2,1,3 c) 3,2,1 d) 3,1,2

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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17

ISRO 2006-ECE Ripple counter
A Pulse train with a frequency of 1MHz is counted using a modulo 1024 ripple-counter built with J-K flip-flops. For proper operation of the counter the maximum permissible propagation delay per flip-flop stage is a) 100 n sec b) 50 n sec c) 20 n sec d) 10 n sec

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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18

ISRO 2006-ECE AND OR gates
In the given network of AND and OR gates f can be written as: a) X0 X1 X2 .....Xn + X1 X2 . ....Xn + X2 X3 ....Xn.... Xn b) X0 X1 + X2 + X3 +....... +Xn-1 . Xn C) X0+X1+ X2+ .......+ Xn d) X0 X1 X3........ Xn-1 + X2+X3+X5 ......... Xn-1 + ........+ Xn-2 + Xn-1 +Xn

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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19

ISRO 2006-ECE NAND gates
Assuming that only the X and Y logic inputs are available and their complements X' and Y' are not available, what is the minimum number of two-input NAND gates requires to implement X ⊕ Y? a) 2 b) 3 c) 4 d) 5

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

1.3k views

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20

ISRO 2007- ECE Matrices
The Algebraic multiplicity of the matrix A= is a) 1 b) 2 c) 3 d) 4

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

854 views

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21

ISRO 2007- ECE Probability
A bag contains eight white and six red marbles. The probability of drawing two marbles of same colour is a) $8c_2$ .$6c_2$ / $14c_2$ b) $8c_2$ /$14c_2$ + $6c_2$ /$14c_2$ c) $8c_2$ .$6c_2$ /$14c_2$.$14c_2$ d)$8c_2$ /$14c_2$ + $6c_2$ /$12c_2$

sh!va asked in Probability Mar 3, 2017

by sh!va

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22

ISRO 2007- ECE Geometry
Equation of a straight line passing through the point (-1,2) and making equal intercepts on the axes is a) x -y =1 b)x-2y=1 c)x+y=1 d) x-y=2

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

379 views

1 vote

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23

ISRO 2007- ECE Integration

sh!va asked in Calculus Mar 3, 2017

by sh!va

225 views

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24

ISRO 2007- ECE Determinant
The value of determinant is: a) 0 b) 1 c) 3 d) a+b+c

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

470 views

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1 answer

25

ISRO 2007-ECE Roots of equation
If a,b,c are the roots of equations $x^3$ + p$x^ 2$ +q$x$+p=0, Then the value of $tan^{-1} a+ tan^{-1 }b+tan^{-1}c$ is a) n π /4 b) n π /2 c) n π d) 2n π

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

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26

ISRO 2007- ECE Z plane
The region of the z plane for which |z-a|/|z+a| = 1 ($Re(a)$ ≠ 0) is: a) x-axis b) y axis c) The straight line z = lal d) None of the above

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

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27

ISRO 2007- ECE Vectors
A unit vector perpendicular to the vectors a= 2i –3j + k and b=i+j-2k , is a) (1/ √ 3 ) (–i+j+k) b) (1/ √ 3 )(i+j- k) c) (1/ √ 3 )(i + j+k) d) (i+j+k)

sh!va asked in Linear Algebra Mar 3, 2017

by sh!va

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28

ISRO 2007- ECE Half Adder using NAND
The sum S of A and B in a half Adder can be implemented by using K NAND gates. The value of K is a) 3 b) 4 c) 5 d) None of these

sh!va asked in Digital Logic Mar 3, 2017

by sh!va

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29

ISRO 2007- ECE Program Counter
When a program is being executed in an 8085 microprocessor, its Program Counter contains a) The number of instructions in the current program that have already been executed b) The total number of instructions in the program being executed c) ... of the instruction that is being currently executed d) The memory address of the instruction that is to be executed next

sh!va asked in CO and Architecture Mar 3, 2017

by sh!va

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30

ISRO 2007- ECE Time division MUX
In time division multiplexing a) Time is doubled between bits of a byte b) Time slicing at CPU level takes place c) Total time available in the channel is divided between several users and each users is allotted a time slice. d) None of the above

sh!va asked in CO and Architecture Mar 3, 2017

by sh!va

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Recent questions tagged isro-ece