Question is ⇒ In PAL system weighting of R - Y and B - Y signals is done to, Options are ⇒ (A) prevent over modulation on saturated colours, (B) prevent under modulation of saturated colours, (C) allow over modulation of saturated colours, (D) allow under modulation on saturated colours, (E) , Leave your comments or Download question paper.

Question is ⇒ In PAL system weighting of R - Y and B - Y signals is done to, Options are ⇒ (A) prevent over modulation on saturated colours, (B) prevent under modulation of saturated colours, (C) allow over modulation of saturated colours, (D) allow under modulation on saturated colours, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In PAL system weighting of R - Y and B - Y signals is done to
A.	prevent over modulation on saturated colours [Correct Answer]
B.	prevent under modulation of saturated colours [Wrong Answer]
C.	allow over modulation of saturated colours [Wrong Answer]
D.	allow under modulation on saturated colours [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A 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 :

⇒

Match the following:

	List I		List II
A.	200 MHz	1.	SHF
B.	20 GHz	2.	UHF
C.	500 kHz	3.	VHF
D.	500 MHz	4.	MF

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

⇒ The applications of shift registers are

Time delay
Ring counter
Serial to parallel data conversion
Serial to serial data conversion

Which of the above are correct?
1, 2, 3
2, 3, 4
1, 2, 3, 4
1, 2, 4

⇒ In auxiliary commutated chopper, the peak value of thyristor current is
equal to peak value of load current
equal to peak value of capacitor current
sum of peak value of load current and capacitor current
none of the above

⇒ The 10 MHz in the specification of CRO means that
the sweep frequency is 10 MHz
the frequency of input signal should not be more than 10 MHz
the vertical amplifier has been designed for 10 MHz
none of the above

⇒

Assertion (A): The advantages of totem pole output are fast switching and low power consumption.

Reason (R): IC packages available are DIP, surface mount and J lead surface mount.

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

⇒ Which of these is the most recent display device?
LED
LCD
VF
(a) and (c)

⇒ In phase modulation, the phase deviation is
proportional to the amplitude of the signal and varies with frequency
remains constant while amplitude and frequency of signal varies
proportional to the amplitude of the signal and independent of the frequency
none of the above

⇒ Q of a coil

increases with Q increasing frequency
varies linearly with frequency
increase with increasing frequency because R increases at high frequency
decrease after the peak frequency because R increases at H.F. the correct statements are

A, B
C, D
A, C
B, D

⇒ A reactance function
has a pole at origin
has a zero at origin
may have a pole or zero at origin
has a pole or zero at origin and a pole or zero at infinity

⇒ A small signal source v_i(t) = A cos 20t + B sin10⁶t is applied to a transistor amplifier as shown below. The transistor has β = 150 and h_ie = 3 kΩ. Which expression best approximates V₀(t<
v₀(t) = -1500 (A cos 20t + B sin 10⁶t)
v₀(t) = -150 (A cos 20t + B sin 10⁶t)
v₀(t) = -1500 B sin 10⁶t
V₀(t) = -1500 sin 10⁶t

⇒ A dc network has an open circuit voltage of 5 V. When its terminals are short circuited a current of 5 A flows through the short circuit. If the short circuit is removed and a resistance of 1.5 Ω is connected across its terminals, the current will be
0.0416666666666667
0.0833333333333333
2.5 A
0.208333333333333

⇒ What is the addressing mode used in instruction MOV M, C?
Direct
Indirect
Induced
Immediate

⇒ In an AM wave the carrier and one of the side bands is suppressed. If m = 1, the percentage saving in power is
0.25
0.5
0.666
0.833

⇒ In a loss line R_L < Z₀, then
Reflection coefficient is zero
Reflection coefficient is ∞
Reflection coefficient is negative
Reflection coefficient is positive

⇒ The contents of F register in 8085 are 01010001. This means
S = 0, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 1, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 1, P = 0 and CY=1
S = 1, Z = 0, AC = 0, P = 0 and CY=1

⇒ A transmission line has characteristics impedance of (75 + j 0.01) Ω and is terminated in a load impedance of (70 + j 50) Ω. The reflection coefficient will be
0.08 + j 0.32
0.32 + j 1.38
0.70 - j 2.97
1.1 + j 0.32

⇒ The circuit consisting of two transistor connected in series with the d.c. supply voltage is called
push pull
differential pair
stacked V⁺
complementary symmetry

⇒ Let f(A, B) = A ⊕ B; then the simplified form of the function f(f(x ⊕ y, z)w) is
(x ⊕ y ⊕ z)w
x ⊕ y ⊕ z ⊕ w
(x ⊕ y ⊕ z) + w
none of these

⇒ In an amplifier with a gain of - 1000 and feedback factor β = - 0.1, the change in gain is 20% due to temperature. The change in gain for feedback amplifier will be
0.1
0.05
0.002
0.0001

⇒ Calculate the wave number in waveguide having dimensions 4 x 2 cm at 3 GHz
6.28
62.8
8
0

⇒ 300 to 3000 MHz frequency is categorized as
MF
HF
UHF
SHF

⇒ The unit of permeability is
T
Wb
H/M
H

⇒ For TE or TM modes of propagation in bounded media, the phase velocity is
independent of frequency
is a linear function of frequency
is a non-linear function of frequency
can be frequency dependent or frequency independent on the source

⇒ Load cell uses
piezoelectric crystal
capacitor
mutual inductance
strain gauge

⇒ A system has high gain and phase margin. The system is
very stable
sluggish
very stable and sluggish
oscillatory

⇒ In a klystron amplifier the force on all electrons
causes acceleration of all electrons
causes retardation of all electrons
causes acceleration of some electrons and retardation of others
none of the above

⇒ In a low power factor wattmeter, the resistance of pressure coil is more than in ordinary wattmeter.
TRUE
FALSE

⇒ In 8086 a word OA 50 FH is stored in 02 and 03 memory locations. Then
OFH is stored at location 02 and 0 A 5 at location 03 and address of word is 02
OFH is stored at location 03 and 0 A 5 at location 02 and address of word in 02
OFH is stored at location 02 and 0 A 5 at location 03 and address of word is 03
OFH is stored at location 03 and 0 A 5 at location 02 and address of word is 03

⇒ In the above case the total power in the modulated wave double sideband, suppressed carrier AM will be
112 W
400 W
415 W
512 W

⇒ If a EM wave propagating in z direction then
component of EM wave will exist in z direction
component of EM wave will not exist in z direction
component of EM wave will exist in y direction
component of EM wave will exist in x direction

Users Also Read
Previous Papers

Aptitude

Reasoning

Gen.Knowledge

Speak English

English / Verbal

Online / Mock Test

Vedic Math