36.

In the United States the television broadcast standard is...?
A. PAL B. NTSC
C. SECAM D. RGB
Answer and Explanation
Answer:B
Explanation: PAL and SECAM are standards used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.
37.

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
Answer and Explanation
Answer:C
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.
38.

Which consists of two plates separated by a dielectric and can store a charge?
A. Inductor B. Capacitor
C. Transistor D. Relay
Answer and Explanation
Answer:B
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.nn
39.

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
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.
40.

'.JPG' extension refers usually to what kind of file?
A. System file B. Animation/movie file
C. MS Encarta document D. Image file
Answer and Explanation
Answer:D
Explanation: No answer description available for this question.