Question is ⇒ The number FF in hexadecimal system is equivalent to number __________ in decimal system., Options are ⇒ (A) 256, (B) 255, (C) 240, (D) 239, (E) , Leave your comments or Download question paper.

Question is ⇒ The number FF in hexadecimal system is equivalent to number __________ in decimal system., Options are ⇒ (A) 256, (B) 255, (C) 240, (D) 239, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The number FF in hexadecimal system is equivalent to number __________ in decimal system.
A.	256 [Wrong Answer]
B.	255 [Correct Answer]
C.	240 [Wrong Answer]
D.	239 [Wrong Answer]
View Answer 1 -5 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ If G(s)H(s) = K (T₁s + 1)/[s² (T₂s + 1)] the system stability depended an relative magnitudes of T₁ and T₂.
TRUE
FALSE

⇒ Consider the following statements a half adder.

As a half subtractor also
has two outputs C_H = x x y and S_n = x ⊕ y for two inputs x and y
has two outputs CH = x + y and SH = x ⊕ y for two inputs x and y
is a combinational circuit

Which of the statements given above is/are correct?
1, 3, 4
1, 2, 4
4 only
2 and 3

⇒ In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. The image frequency at 25 MHz will be
24.09 MHz
24.54 MHz
25.45 MHz
25.91 MHz

⇒ The charges between a hollow and solid metal spheres reside
through out in both
on outer surface in hollow and through out in solid
on the outer surface in both
none of the above

⇒ A single phase full converter gives maximum and minimum output voltage at firing angles of
0 and 180° respectively
180° and 0° respectively
0 and 90° respectively
90° and 0° respectively

⇒ In the circuit of figure, the source supplies, 2.25 mA. The value of R mus
5 Ω
3 Ω
1.5 Ω
0.5 Ω

⇒ If B_max is the maximum flux density, hysteresis loss is proportional to
B_max
B^1.6_max
B²_max
B³_max

⇒ An SR flip flop can be built using NOR gates or NAND gates.
TRUE
FALSE

⇒ In case of stabilized reactance modulator AFC system
phase modulator is converted into frequency modulation by equalizer circuit
the discriminator must have a fast time constant to provide demodulation
the higher discriminator frequency, the better oscillator frequency
the discriminator frequency must be too low, or the system will fail

⇒ For an ac sinusoidal wave, the rms value is 10 A. For the same wave delayed by 60° in each half cycle, the rms value is likely to be
0.416666666666667
7.07 A
6.35 A
3.5 A

⇒ If a two-port network is reciprocal as well as symmetrical, which one of the following relationships is correct?
Z₁₂ = Z₂₁ and Z₁₁ = Z₂₂
Y₁₂ - Y₂₁ and Y₁₁ - Y₂₂
AD - BC = 1 and A = D
all of the above

⇒ Aperture circuit produces __________ in sample hold circuit.
the total sampling time
delay between the instance at which hold command is initiated and the instance at which O/P starts tracking I/P
the time taken by O/P to settle within the specified 1% error band, that of the I/P
time required by holding capacitor to reach upto the level close to input

⇒

Match the following:

	List I (Signal)		List II (Value)
A.	AM	1.	0 0.5
B.	DSB - SC	2.	1
C.	SSB	3.	2
D.	FM (β = 2)	4.	16
E.	FM (β = 5)	5.	8

A-1, B-3, C-2, D-5, E-4
A-3, B-3, C-1, D-5, E-4
A-2, B-1, C-4, D-5, E-5
A-4, B-2, C-5, D-3, E-1

⇒ In binomial arrays the elimination of secondary lobes takes place
at the cost of directivity
at the cost of gain
both (a) and (b)
none of the above

⇒ Power gain of antenna equals directive gain in VHF and UHF range if and only if efficiency of the antenna is
0.25
0.5
0.75
1

⇒ In a series RLC circuit, p-f is leading if X_C < X_L.
TRUE
FALSE

⇒ For the time domain response shown in figure the
lies in left half plane
lies in right half plane
lies at origin
may be complex or imaginary

⇒ The model of a system
is unique
depends on desired degree of accuracy
depends on the type of analysis
both (b) and (c)

⇒

Assertion (A): The access time of memory is lowest in the case of DRAM

Reason (R): DRAM uses refreshing cycle.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true

⇒ A rectangular wave guide is designed to propagate at the dominant mode TE₁₀ at a frequency of 5 GHz. The cut-off frequency is 0.8 of signal frequency. The ratio of the guide width to height is 2. The dimensions of the guide are
3.75 cm, 1.875 cm
4 cm, 2 cm
8 cm, 4 cm
2.54 cm, 1.27 cm

⇒ A rhombic antenna is a
resonant antenna
non-resonant antenna
coupled antenna
none of the above

⇒ The relative permeability of a ferromagnetic material is
1
less than 1
about 10
1000 or more

⇒ The Boolean function realized by the logic circuit show
F = Σm(0, 1, 3, 5, 9, 10, 14)
F = Σm(2, 3, 5, 7, 8, 12, 13)
F = Σm(1, 2, 4, 5, 11, 14, 15)
F = Σm(2, 3, 5, 7, 8, 9, 12)

⇒ The function of shunt in an ammeter is to
by pass the current
increase sensitivity of meter
increase resistance of meter
all of the above

⇒ In using Nyquist stability criterion it is not necessary to determine closed loop poles.
TRUE
FALSE

⇒ Precisely 1 K byte means
1000 bits
1012 bits
1020bits
1024 bits

⇒ Which control action can never be used alone?
Proportional
Derivative
Integral
Both (b) and (c)

⇒ What does the B register contain after the first MOV B, A has been executed?
40 H
60 H
80 H
80 D

⇒ What does the B register contain after the first MOV B, A has been executed?
40 H
60 H
80 H
80 D

⇒ In a perfect conductor the incident and reflected wave combine to produce
a stronger incident wave
a stronger reflected wave
a standing wave which is not progressing
none of the above