056 - TV Technologies

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056 - TV Technologies

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Question:

1. Arrange the following similarly sized TVs based on technology types in the decreasing order of average power consumption:

	A	CRT, LED, LCD, Plasma
	B	CRT, Plasma, LCD, LED
	C	Plasma, CRT, LED, LCD
	D	Plasma, CRT, LCD, LED

Feedback:

Cathode Ray Tube being an older technology isn't as energy efficient as the other 3 new technologies. Of these, Plasma technology is fairly power hungry and consumes 2-3 times more power than LCD. LED technology consumes lesser power than LCD.

Correct Answer:	B
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Question:

2. Which technology uses the technique of sandwiching an inert gas such as neon between two plates and passing electric current to make the gas glow?

	A	LED TV
	B	LCD TV
	C	Plasma TV

Feedback:

LCD and LED (a variation of LCD) do not have inert gases in them. They use liquid crystal solution that can align and prevent light from passing through them

Correct Answer:	C
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Question:

3. In which year was the first Plasma TV introduced in the market?

	A	1997
	B	2000
	C	2006
	D	2010

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Correct Answer:	A
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Question:

4. One way to differentiate between a Plasma TV and LCD TV is by its thickness. Which is more thick?

	A	Plasma TV
	B	LCD TV

Feedback:

Plasma TVs are usually thicker than LCD TVs by 2 or more inches. Because of this, they are much heavier compared to LCD TVs.

Correct Answer:	A
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Question:

5. What are the preferred visual display units for use in airplanes?

	A	Plasma TV
	B	LCD TV
	C	Both
	D	None

Feedback:

LCDs are preferred over Plasma TVs at higher altitudes because they do not perform well under low air pressure and emit a buzzing sound.

Correct Answer:	B
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Quiz Info

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Author:	Mohan Sundararaju
Date:	Oct-27-2010
Level:	Easy-Medium

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