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Practice MCQ Questions and answers on Technology-GK

Learn and practice General Knowledge questions and answers on Technology with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-4 section-1

Each section contains 100 MCQs on Technology .
31
Sometimes computers and cache registers in a foodmart are connected to a UPS system. What does UPS mean?
Discuss
Answer & Solution
Answer: Option D
Solution:
An uninterruptable power supply (UPS) is a backup power supply, such as a battery, that provides emergency power in the event that power is lost from the main supply.
32
Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
33
'.TMP' extension refers usually to what kind of file?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
34
In the UK, what type of installation requires a fireman's switch?
Discuss
Answer & Solution
Answer: Option B
Solution:
Twisting the yoke will tilt the picture. A projection color television uses three picture tubes and yokes for red, green and blue light.
35
The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down are called a...?
Discuss
Answer & Solution
Answer: Option B
Solution:
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.
36
In the United States the television broadcast standard is?
Discuss
Answer & Solution
Answer: Option C
Solution:
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.
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?
Discuss
Answer & Solution
Answer: Option B
Solution:
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.
38
The transformer that develops the high voltage in a home television is commonly called as?
Discuss
Answer & Solution
Answer: Option B
Solution:
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.
39
Which consists of two plates separated by a dielectric and can store a charge?
Discuss
Answer & Solution
Answer: Option B
Solution:
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.
40
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?
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board