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- Question
In the UK, what type of installation requires a fireman's switch?
Options- A. Neon Lighting
- B. High Pressure Sodium Lighting
- C. Water Features
- D. Hotel Rooms
- Correct Answer
- Neon Lighting
ExplanationNeon 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.) - 1. Who developed Yahoo?
Options- A. Dennis Ritchie & Ken Thompson
- B. David Filo & Jerry Yang
- C. Vint Cerf & Robert Kahn
- D. Steve Case & Jeff Bezos Discuss
- 2. 'OS' computer abbreviation usually means?
Options- A. Order of Significance
- B. Open Software
- C. Operating System
- D. Optical Sensor Discuss
- 3. Who built the world's first binary digit computer: Z1...?
Options- A. Konrad Zuse
- B. Ken Thompson
- C. Alan Turing
- D. George Boole Discuss
- 4. What does the term PLC stand for?
Options- A. Programmable Lift Computer
- B. Program List Control
- C. Programmable Logic Controller
- D. Piezo Lamp Connector Discuss
- 5. The sampling rate, (how many samples per second are stored) for a CD is...?
Options- A. 48.4 kHz
- B. 22,050 Hz
- C. 44.1 kHz
- D. 48 kHz Discuss
- 6. The purpose of choke in tube light is?
Options- A. To decrease the current
- B. To increase the current
- C. To decrease the voltage momentarily
- D. To increase the voltage momentarily Discuss
- 7. '.BAT' extension refers usually to what kind of file?
Options- A. Compressed Archive file
- B. System file
- C. Audio file
- D. Backup file Discuss
- 8. 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?
Options- A. Inernet
- B. Interanet
- C. Local Area Network
- D. Wide Area Network Discuss
- 9. Which is NOT an acceptable method of distributing small power outlets throughout an open plan office area?
Options- A. Power Poles
- B. Power Skirting
- C. Flush Floor Ducting
- D. Extension Cords Discuss
- 10. 'CD' computer abbreviation usually means?
Options- A. Command Description
- B. Change Data
- C. Copy Density
- D. Compact Disc Discuss
Technology problems
Search Results
Correct Answer: David Filo & Jerry Yang
Correct Answer: Operating System
Correct Answer: Konrad Zuse
Correct Answer: Programmable Logic Controller
Explanation:
Used in manufacturing, engineering, and process operations.
Correct Answer: 44.1 kHz
Explanation:
CDs reproduce 44,100 samples per second. Which has a maximum frequency reproduction of 22,050 Hz, or just a hair past the upper limit of human hearing. In this way CDs can theoretically reproduce any frequency in the human hearing range.
Correct Answer: To increase the voltage momentarily
Correct Answer: System file
Correct Answer: Local Area Network
Correct Answer: Extension Cords
Explanation:
Extension cords can be a tripping hazard, and can be easily damaged, causing an unsafe situation. There are many ways of safely getting power to each work place, where wiring is protected and concealed.
Correct Answer: Compact Disc
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