Question is ⇒ Volume control found on the front panel of television receivers, Options are ⇒ (A) a ganged resistor, (B) a variable resistor of logarithmic type, (C) a variable resistor of linear type, (D) a trimmer potentiometer, (E) , Leave your comments or Download question paper.

Question is ⇒ Volume control found on the front panel of television receivers, Options are ⇒ (A) a ganged resistor, (B) a variable resistor of logarithmic type, (C) a variable resistor of linear type, (D) a trimmer potentiometer, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Volume control found on the front panel of television receivers
A.	a ganged resistor [Wrong Answer]
B.	a variable resistor of logarithmic type [Correct Answer]
C.	a variable resistor of linear type [Wrong Answer]
D.	a trimmer potentiometer [Wrong Answer]
View Answer 2 -1 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 :

⇒

Assertion (A): In many materials, dielectric polarization causes mechanical distortion.

Reason (R): If dielectric polarization causes mechanical distortion then mechanical distortion must cause dielectric polarization.

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

⇒ Maximum power transfer theorem is applicable to circuits with one source only.
TRUE
FALSE

⇒

Match the following:

	List I		List II
A.	SSB Modulation	1.	Transmission line
B.	Δ . B = 0	2.	Hilbert transform
C.	Model dispersion	3.	Faraday's law
		4.	Absence of magnetic monopoles
		5.	Waveguides
		6.	Phase locked loop

A-1, B-3, C-5
A-5, B-4, C-2
A-6, B-4, C-5
A-2, B-4, C-5

⇒ In colour TV system the colour sub carrier frequency is 4.43 MHz.
TRUE
FALSE

⇒ In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap is
1
2
3
4

⇒ The system in the given figure
good gain and phase margins
good gain margin and poor phase margin
poor gain and phase margins
poor gain margin but good phase margin

⇒ The range of a cordless telephone is about
1000 m
500 m
100 m
10 m

⇒

Match the following:

	List I (Operator in C)		List II (Priority of Operation)
A.	!	1.	1
B.	< >	2.	2
C.	∗	3.	3
D.	=	4.	4

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

⇒ A typical signal strength received from a geosynchronous communication satellite is of the order of a few
milliwatts
kilowatts
picowatts
watts

⇒ A single phase full bridge inverter for R-L loads needs
4 thyristors
4 thyristors and 4 diodes
4 thyristors and 2 diodes
8 thyristors

⇒ Secondary emission results
when temperature of metals is raised to a level above the crystallization temperature
when metals are subjected to strong magnetic fields
when light rays fall on the metal surface
when a high velocity beam of electrons strikes as metal surface

⇒ Which of the following represents the decimal form of binary 0.0111?
0.16
0.22728
0.9375
0.7964

⇒ In a 4 input OR gate, the total number of High outputs for the 16 input states are
16
15
14
13

⇒ Signal flow graph is used to find :
stability of the system
controllability of the system
transfer function of the system
poles of the system

⇒ Which of the following devices has metal-silicon junction?
General purpose power diode
Schottky diode
SCR
MOSFET

⇒ Consider the following statements about hybrid ring

Ports 1 and 2 are decoupled.
Port 3 and 4 are coupled.
A signal entering either port 1 or 2 splits equally between ports 3 and 4.
A signal entering either port 3 or 4 splits equally between ports 1 and 2.

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

⇒ Consider the following sys
System I has larger bandwidth and faster speed of response than System II
System II has larger bandwidth and faster speed of response than System I
System I has larger bandwidth but System II has faster speed of response
System II has larger bandwidth but System I has faster speed of response

⇒ Which of the following is/are not a property/properties power spectral density function Sx(ω)?
Sx(ω) is real function of ω
Sx(ω) is a even function of ω
Sx(ω) is non-positive function of ωSx(ω) ≤ 0 for all ω
All of the above

⇒ Using 4-bit numbers (n = 4) if k = 0011₂, how is k expressed in 2's complement?
1011₂
1101₂
1100₂
0101₂

⇒ For an RC impedance function Z
Z(∞) = Z(0)
Z(∞) < Z(0)
Z(∞) ≤ Z(0)
Z(∞) > Z(0)

⇒ To obtain very high I/P and O/P impedances in a feedback amplifier, the topology used is
voltage series
current series
voltage shunt
current shunt

⇒ In figure the dc load line will meet the y and x axis respectivel
20 mA and 30 V
15 mA and 20 V
25 mA and 40 V
10 mA and 20 V

⇒ The atmospheric absorption of radio waves depends on
frequency of wave
the distance from transmitter
wave polarisation
atmospheric polarisation

⇒ Under identical conditions, for a single modulating frequency, FM and PM are indistinguishable. Now if the modulating frequency is reduced, then
phase modulation index as well as frequency modulation index decrease
phase modulation index as well as frequency modulation index increase
phase modulation index will remain constant whereas frequency modulation index will increase
phase modulation index will decrease whereas frequency modulation index will remain constant

⇒ Algebraic expression for z-transform of x[n] is X[z]... What is the algebraic expression of z-transform of e^jω₀n x[n]?
X(Z - Z₀)
X(e^-jW0z)
X(e^jω0z)
X(Z)^jω0z

⇒ In the given figure shows a 3 bit shift register using TTL flip flops. Initially all the flip flops are set to 0 state. After 8 clock pul
A = 1, B = 1, C = 1
A = 1, B = 1, C = 0
A = 0, B = 1, C = 1
A = 0, B = 0, C = 1

⇒ In 8085 microprocessor, if instruction RST is written in a program then the program will jump to location
0020 H
0024 H
0028 H
002 CH

⇒ A synchro transmitter receiver unit is a
two phase ac device
3 phase ac device
dc device
1 phase ac device

⇒ Two ammeters A and B both 0-10 A have internal resistance of 1 Ω and 0.5 Ω respectively. They are connected in parallel. If total current is 15 A, then
I_A = I_B = 7.5 A
I_A = 5 A, I_B = 10 A
I_A = 10 A, I_B = 5 A
I_A = 9 A, I_B = 6 A

⇒ The noise generated by a resistor depends upon
its operating temperature
its resistance value
both (a) and (b)
bandwidth