# In an 8085 microprocessor, the contents of the accumulator and the carry flag are A7 (in hex) and 0, respectively. If the instruction RLC is executed, then the contents of the accumulator (in hex) and the carry flag, respectively, will be

1.  4E and 0

2.  4E and 1

3.  4F and 0

4.  4F and 1

4

4F and 1

Explanation :
No Explanation available for this question

# The logic functionality realized by the circuit shown below is

1.   OR

2.  XOR

3.  NAND

4.  AND

4

AND

Explanation :
No Explanation available for this question

# The minimum number of 2-input NAND gates required to implement a 2-input XOR gate is

1.   4

2.  5

3.  6

4.  7

4

4

Explanation :
No Explanation available for this question

# The block diagram of a feedback control system is shown in the figure. The overall closed-loop gain G of the system is

1.  G= G1G2 / 1+G1H1

2.  G= G1G2 / 1+G1G2+ G1H1

3.  G= G1G2 / 1+G1 G2 H1

4.  G= G1G2 / 1+G1G2+ G1 G2 H1

4

G= G1G2 / 1+G1G2+ G1H1

Explanation :
No Explanation available for this question

# For the unity feedback control system shown in the figure, the open-loop transfer function G(s) is given as G( s) = 2/s(s+1) . The steady state error ess due to a unit step input is

1.  0

2.  0.5

3.  1.0

4.  ∞

4

0

Explanation :
No Explanation available for this question

# If a right-handed circularly polarized wave is incident normally on a plane perfect conductor, then the reflected wave will be

1.  right-handed circularly polarized

2.  left-handed circularly polarized

3.  elliptically polarized with a tilt angle of 450

4.  horizontally polarized

4

left-handed circularly polarized

Explanation :
No Explanation available for this question

# As x varies from −1 to +3, which one of the following describes the behaviour of the function f(x)= x3 – 3x2 + 1

1.  f(x) increases monotonically.

2.  f(x) increases, then decreases and increases again.

3.  f(x) decreases, then increases and decreases again.

4.  f(x) increases and then decreases

4

f(x) increases, then decreases and increases again.

Explanation :
No Explanation available for this question

# A wire of length 340 mm is to be cut into two parts. One of the parts is to be made into a square and the other into a rectangle where sides are in the ratio of 1:2. What is the length of the side of the square (in mm) such that the combined area of the square and the rectangle is a MINIMUM

1.   30

2.   40

3.  120

4.  180

4

120

Explanation :
No Explanation available for this question

# Based on the given statements, select the appropriate option with respect to grammar and usage. Statements (i) The height of Mr. X is 6 feet. (ii) The height of Mr. Y is 5 feet.

1.  Mr. X is longer than Mr. Y.

2.  Mr. X is more elongated than Mr. Y.

3.  Mr. X is taller than Mr. Y.

4.  Mr. X is lengthier than Mr. Y

4

Mr. X is longer than Mr. Y.

Explanation :
No Explanation available for this question

1.  facilitated

2.   felicitated

3.  fantasized

4.  facilitated

4