sInfoEra
Home
MCQs
Electrical engineering — Quiz
Audio Video Engineering MCQs set -5
50 questions · Test your knowledge
Home
/
MCQs
/
Audio Video Engineering MCQs set -5
1
Which type of transducers scientist discovered after the conventional picture tubes?
A
Solid state
B
Liquid state
C
Gaseous state
D
Plasma state
2
Which screens are made up of liquid crystal sandwiched between two glass plates?
A
LED
B
Plasma
C
LCD
D
Monochrome
3
In which monitor would the image look dimmer or even disappear when viewed from an angle?
A
Plasma
B
LCD
C
LED
D
Monochrome
4
What is the range of the usual contrast ratio of LCD TV?
A
600:1 to 1000:1
B
500:1 to 700:1
C
200:1 to 10000:1
D
300:1 to 900:1
5
Which monitor can rotate from landscape to portrait mode?
A
LCD
B
LED
C
Plasma
D
Monochrome
6
What do LEDs consist of which glow when exposed to electric current?
A
Small semiconductors
B
Liquid semiconductors
C
Big and Small semiconductors
D
Big semiconductors
7
Which type of TV does not work properly at high altitude?
A
Plasma
B
LED
C
Monochrome
D
LCD
8
Which chemical coating is converted into red, green and blue colors when it comes in contact with UV rays in plasma screens?
A
Hydrochloric acid
B
Acetone
C
Phosphor
D
Nitrogen
9
What is defined as the amount of light intensity as perceived by the eye regardless of the color?
A
Luminance
B
Hue
C
Saturation
D
Brightness
10
What is termed as the predominant spectral color of the received light?
A
Brightness
B
Saturation
C
Luminance
D
Hue or tint
11
Which of the following is the Grassman’s law equation?
A
Y = 0.30 × R + 0.59 × B + 0.11 × G
B
Y = 0.30 × G + 0.59 × R + 0.11 × B
C
Y = 0.30 × R + 0.59 × G + 0.11 × B
D
Y = 0.30 × B + 0.59 × G + 0.11 × R
12
Which alloy are the electrodes generally used in picture tubes?
A
Nickel and nickel alloy
B
Nitrogen and nickel alloy
C
Carbon and iodine alloy
D
Carbon and nickel alloy
13
Which is the costliest and most important part of television receiver?
A
Luminance
B
Display
C
Hue or tint
D
Picture tubes
14
What causes the movement of electrons in horizontal and vertical directions when current is applied to the cathode of a picture tube?
A
Magnetic and electric field
B
Transmission field
C
Magnetic field
D
Electric field
15
Which is the first basic equipment in a TV?
A
Camera
B
Bandwidth
C
Pixel
D
Resolution
16
With which material is the signal plate coated in a Vidicon camera tube?
A
Photoconductive
B
Photosensitive
C
Photo acoustic
D
Photo transitive
17
Of which material is the faceplate of a vidicon camera tube made?
A
N – type semiconductor
B
Ring connector
C
Glass or quartz
D
P – type semiconductor
18
How many lines of resolution can be achieved under practical conditions in Vidicon camera tube?
A
150
B
750
C
250
D
350
19
With which material is the Plumbicon camera tube made?
A
Lead mono-oxide
B
Potassium mono-oxide
C
Aluminum bi-oxide
D
Xenon mono-oxide
20
Which type of diode is formed in the plumbicon tube?
A
Schottky
B
LED
C
PIN
D
Zener
21
After entering into color camera tube the light is splits into how many paths?
A
1
B
2
C
3
D
4
22
Which tube was the only tube to use primary RGB colors?
A
Trinicon single tube color camera
B
Color camera tube
C
Plumbicon camera tube
D
Vidicon camera tube
23
Which of the following camera uses photo-diodes, MOS capacitors and shift registers?
A
Solid state video camera
B
Color camera
C
Trinicon single tube color camera
D
Vidicon camera
24
What is the full form of CVS?
A
Composite video signal
B
Composite video system
C
Color video system
D
Composite value signal
25
What is the period of one scanning line in composite video signal?
A
52 μs
B
25 μs
C
36 μs
D
64 μs
26
How much cycles do the color burst (CB) in the composite video signal consists of?
A
1 to 3
B
4 to 6
C
3 to 5
D
8 to 10
27
What is the range of peak white level in composite video signal?
A
72 %
B
50 to 70 %
C
10 to 12.5 %
D
75 %
28
What is termed as the difference between black level and blanking level?
A
Pedestal
B
Pedestal height
C
Black level
D
DC level
29
What will be the voltage if the picture is darker in composite video signal?
A
Lower
B
Higher
C
Constant
D
Varying
30
What is defined as the width to height ratio of a picture frame?
A
Aspect ratio
B
Scanning
C
Flicker
D
Skimming
31
What is the aspect ratio in the cinemas?
A
1:2
B
5:7
C
4:3
D
3:2
32
What is termed as the conversion of light from a picture into video signal by scanning process?
A
Aspect ratio
B
Synchronization
C
Resolution
D
Pixels
33
What is the effect called in which 70 percent of pixels are reproduced by active scanning lines?
A
Kell
B
Inductive
C
Mesomeric
D
Electromeric
34
What is the resolution of Indian PAL system?
A
140 lines
B
340 lines
C
410 lines
D
40 lines
35
What is the common name for Ultra high definition television?
A
1K
B
2K
C
3K
D
4K
36
What depends on the frequency of frame in television fundamentals?
A
Aspect ratio
B
Pixels
C
Bandwidth
D
Resolution
37
Which of the following format of video compression was used for efficient coding of video sequence?
A
MPEG – 1
B
MPEG – 2
C
MPEG – 3
D
MPEG – 4
38
In which of the following format of video compression DVD movies are compressed?
A
MPEG – 3
B
MPEG – 1
C
MPEG – 4
D
MPEG – 2
39
Which of the following format of video compression was used to handle HDTV?
A
MPEG – 1
B
MPEG – 4
C
MPEG – 2
D
MPEG – 3
40
Which of the following format of video compression is used to handle lower bandwidth consuming application?
A
MPEG – 1
B
MPEG – 2
C
MPEG – 3
D
MPEG – 4
41
Which of the following frame is self-contained and has no dependency outside the image?
A
I – frame
B
B – frame
C
D – frame
D
P – frame
42
What is the full form of GOP?
A
Gigabyte of Pictures
B
Generation of Photos
C
Group of Pictures
D
Generation of Pictures
43
Which video compression format does iPhones do not support?
A
MPEG – 1
B
MPEG – 3
C
MPEG – 2
D
MKV
44
Which of the following is the first member of H.26x family of video coding standards?
A
H.264
B
H.262
C
H.263
D
H.261
45
Which of the following format of video compression is not optimized for low bit rates?
A
H.263
B
H.261
C
H.262
D
H.264
46
Which of the following format of video compression standard was first designed to be utilized in PSTN and circuit-switched network video conferencing and video telephony systems?
A
H.263
B
H.261
C
H.262
D
H.264
47
Which of the following format of video compression is the latest generation standard for video encoding?
A
H.263
B
H.261
C
H.262
D
H.264
48
Which multimedia standard associates the description with the content itself to allow fast and efficient searching?
A
MPEG-7
B
MPEG-4
C
MPEG-2
D
MPEG-3
49
Which multimedia standard defines means of sharing digital rights, permissions and restrictions for digital content?
A
MPEG-7
B
MPEG-21
C
MPEG-1
D
MPEG-3
50
Which color model is used for most computer model and video systems?
A
RGB
B
RYB
C
CMY
D
HSV
Submit Quiz
Back to All Quizzes