31.
Sometimes computers and cache registers in a foodmart are connected to a UPS system. What does UPS mean?
A. United Parcel Service
B. Uniform Product Support
C. Under Paneling Storage
D. Uninterruptable Power Supply
Answer & Explanation
Answer: Option D
Explanation:
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.
View Answer Workspace Report Discuss in Forum
32.
Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
A. Shawn Fanning
B. Ada Byron Lovelace
C. Sabeer Bhatia
D. Ray Tomlinson
Answer & Explanation
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
33.
‘.TMP’ extension refers usually to what kind of file?
A. Compressed Archive file
B. Image file
C. Temporary file
D. Audio file
Answer & Explanation
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
34.
In the UK, what type of installation requires a fireman’s switch?
A. Neon Lighting
B. High Pressure Sodium Lighting
C. Water Features
D. Hotel Rooms
Answer & Explanation
Answer: Option A
Explanation:
Neon lighting runs at a high voltage, typically above 1000 Volts. A fireman’s switch protects a fireman from receiving a shock when a water jet is sprayed onto the installation. The switches are red, and mounted in a conspicuous position. (This is specified by IEE Regulations (Europe), SANS (South Africa), UK Electricity regulations and many Asian countries. I am unable to confirm other countries’ requirements, so feel free to let me know.)
View Answer Workspace Report Discuss in Forum
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…?
A. Transformer B. Yoke
C. Capacitor D. Diode
Answer & Explanation
Answer: Option B
Explanation:
Twisting the yoke will tilt the picture. A projection color television uses three picture tubes and yokes for red, green and blue light.