An alternating current instead of direct current is used in long-distance electric transmission because:

• it is easy to generate
• rectification is possible
• energy losses are minimum
• it causes fewer accidents

Which one of the following solutions will not turn blue litmus to red litmus?

• Lemon juice
• Acetic acid
• Sodium hydroxide
• Hydrochloric acid

CNG stands for:

• Compressed Natural Gasoline
• Compressed Natural Gas
• Compressed Nitrogen Gas
• Compressed Neon Gas

The location of where an organism lives would be best described as its:

• niche
• habitat
• range
• biome

1 Gigabyte (GB) is equal to:

• 1024 bytes
• 1024 KB
• 1024 MB
• 1024 TB

What is the name of a technology that allows telephone calls to be made over computer networks like the internet?

• VoIP
• GSM
• Modem
• CDMA

What is the full form of USB?

• Unlimited Service Band
• Unlimited Serial Bus
• Universal Serial Bus
• Unlimited Storage Bus

Every computer connected to the internet is identified by a unique four-part strings known as:

• IP Address
• Domain name
• Host Address
• None of these

A network of computers and other peripherals that is confined to a relatively small space is call:

• Local Area Network
• Wide Area Network
• Global Network
• Intranet

Which of the following retains the information when the power to the system is shut down?

• CPU
• ROM
• RAM
• DIMM