## Technology Questions and Answers Part-10

1. In the United States the television broadcast standard is?
a) PAL
b) NTSC
c) SECAM
d) RGB

Explanation: This voltage often remains in storage even if the set is unplugged. Although the voltage is very high it has very low power but it can be dangerous because your body jumps if brought in contact.

2. In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is about?
a) 500 volts
b) 5 thousand volts
c) 25 thousand volts
d) 100 thousand volts

Explanation: The flyback is usually connected to the system that pulls the electron beam across the screen in one direction to 'paint' a line of the image and then returns in the other direction much faster.

3. The transformer that develops the high voltage in a home television is commonly called as?
a) Tesla coil
b) Flyback
c) Yoke
d) Van de Graaf

Explanation: The flyback is usually connected to the system that pulls the electron beam across the screen in one direction to 'paint' a line of the image and then returns in the other direction much faster.

4. Which consists of two plates separated by a dielectric and can store a charge?
a) Inductor
b) Capacitor
c) Transistor
d) Relay

Explanation: Useful in tuning and filtering circuits, it blocks DC while passing AC. How much charge a capacitor can store is its capacitance, measured in farads.

5. What do we call a collection of two or more computers that are located within a limited distance of each other and that are connected to each other directly or indirectly?
a) Inernet
b) Interanet
c) Local Area Network
d) Wide Area Network

Explanation: No explanation is given for this question

6. In which decade was the SPICE simulator introduced?
a) 1950s
b) 1960s
c) 1972s
d) 1980s

Explanation: SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.

7. Most modern TV's draw power even if turned off. The circuit the power is used in does what function?
a) Sound
b) Remote control
c) Color balance
d) High voltage

Explanation: Some authorities are recommending TV's, VCR's and Stereo's be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.

8. Which is a type of Electrically-Erasable Programmable Read-Only Memory?
a) Flash
b) Flange
c) Fury
d) FRAM

Explanation: It's commonly used for MP3 players, computer BIOS code and "thumb" drives. Originally developed in Japan by Toshiba, it has become quite popular for products requiring non-volatile erasable memory. Flash devices have a limited number of erase cycles (typically 10,000 to 1,000,000 cycles) so they're not as good a choice for applications in which the data changes constantly. However, since it has no moving parts (unlike a hard disk) it is an excellent choice for storing the operating code for small personal electronics like PDAs, cell phones, digital cameras, and the data in items like MP3 players.

9. The purpose of choke in tube light is ?
a) To decrease the current
b) To increase the current
c) To decrease the voltage momentarily
d) To increase the voltage momentarily