LED and LCD TV Quiz | LED and LCD TV Objective Type Questions and Answers

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
21 Which of the following displays has slowest switching speed?
A LCD
B Fluorescent
C LEDs
D Nixie tubes

Answer: LCD
22 Which control line/s act/s as an initiator by apprising LCD about the inception of data transmission by the microcontroller?
A Read/Write (RW)
B Register Select (RS)
C Enable (EN)
D All of the above

Answer: Enable (EN)
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
23 When can a LCD display the text form of data ?
A only when RS line is high
B only when RW line is low
C only when RS line is low
D only when RW line is high

Answer: only when RS line is high
24 Camera signal output without sync is called
A Noncomposite Video
B Composite Video
C Black burst
D Generator Lock Video

Answer: Noncomposite Video
25 Precise scanning size and linearity are most important in
A A Single-Tube Color Pickup
B A Saticon
C A Black-And-White Camera
D A Plumbicon

Answer: A Single-Tube Color Pickup
26 If the camera cannot be placed far away enough to include everything in the scene, change the lens to one with a
A shorter focal length
B higher f rating
C lower f rating
D longer focal length

Answer: shorter focal length
27 Which of the following is FALSE?
A The composite video signal includes the camera signal and sync not blanking
B The standard composite video from a camera is 1V p-p with negative sync
C The lens inverts the optical image on the faceplate of the camera tube
D The plumbicon uses a lead oxide layer for the target plate

Answer: The composite video signal includes the camera signal and sync not blanking
28 Which of the following is TRUE?
A the lens inverts the optical image on the faceplates of the camera tube
B The plumbicon camera tube uses a silicon target plate
C The diameter of the vidicon image plate is about 5 in. (127 mm)
D The composite video signal includes the camera signal and sync but not blanking

Answer: the lens inverts the optical image on the faceplates of the camera tube
29 Which of the following produces the signal variations for G4 of the vidicon.
A Beam control
B Wire mesh
C Muzzle
D Target plate

Answer: Target plate
30 When the TV set was turned on, full power was applied to the heater and the picture appeared within a fraction of a second.
A Instant-on operation
B Screen persistence
C Implosion
D Ultor

Answer: Instant-on operation
31 Which is the most position element in the electron gun?
A Ultor or anode
B Cathode
C Anode
D Ultor

Answer: Ultor or anode
32 The coils above and below the electron beam of the picture tube are for .
A H scanning
B V scanning
C Either V or H scanning
D None of these

Answer: H scanning
33 When the receiver is first turned on, what current does the ADG circuit have?
A Low
B High
C Both high and low
D Neither high nor Low

Answer: High
34 What does the color fringing on the edge of the picture shows?
A Misconvergence
B Red cloud
C Insufficient signal drive
D Turned off guns

Answer: Misconvergence
35 The abbreviation TW is for pincushion correction.
A Vertical
B Horizontal
C Diagonal
D Either Way

Answer: Vertical
36 The R, G, and B screen grid adjustments are set for in the picture.
A White Highlights
B Brightness Control
C Visual Cutoff
D Gray-Scale Tracking

Answer: Visual Cutoff
37 Electro-optical effect is produced in ___________
A LCD
B OLED
C LED
D OFC

Answer: LCD
38 The first LCDs became commercially available in ___________
A 1960s
B 1970s
C 1950s
D None

Answer: 1960s
39 LCDs operate from a voltage ranges from ___________
A 10 to 15V
B 10V
C 3 to 15V
D 5V

Answer: 3 to 15V
40 For the operation of FET with TTL logic, the threshold voltage of FET shall be
A 2.2 V
B 4 V
C -12 V
D -4 V

Answer: 2.2 V

Random GK Questions

Q. During the freedom struggle, who established The Deccan Educational Society ?
Q. Maximum harm to a tree is caused by
Q. The deepest trench of the world The Mariana Trench is located in the
Q. What is the impact of advancing glaciers on the rings of trees?
Q. State which amongst the following is not true about VAT?
Q. Which of the following rivers flow in Germany?
Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series