Question Discussion & Solution

For alphabet: Increase by + 4

 D + 4 → H + 4 → L + 4 → P + 4 → T + 4 → X

For Number: Decrease number by - 4

23 – 4 → 19 – 4 → 15 – 4 → 11 – 4 → 7 – 4 → 3

The correct answer is Butane.

Key Points 

• Liquefied Petroleum Gas (LPG) is a blend of light hydrocarbon compounds.
  • It mainly consists of butane or propane or a mixture of both.
  • At room temperature, both gases are colourless and odourless.
  • It is a mixture of 48% propane, 50% butane, and 2% pentane.

Additional Information

• Water Gas:
  • Water-gas is a mixture of CO and H₂.
  • However, by-products such as char, tar, soot, ash, and condensates are also produced. 
• Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulfide, or helium.
• Compressed natural gas is a fuel that can be used in place of petrol (gasoline), diesel fuel, and liquefied petroleum gas (LPG).
  • CNG combustion produces fewer undesirable gases than the aforementioned fuels.
  • In comparison to other fuels, natural gas poses less of a threat in the event of a spill, because it is lighter than air and disperses quickly when released.

The correct answer is Distance.

Key Points

• An odometer is a device that is used for measuring the distance traveled by a vehicle.
• The odometer is usually situated in the vehicle's dashboard.
• The word "odometer" is derived from two Greek words meaning path and measure.
• Odometer is also used by people who construct roads and survey lands.

Additional Information

The correct answer is option 4.

Explanation:

• Compact Disc-Recordable (CD-R) technology is known as Write Once-Read Many (WORM), which allows you to write data onto a disk just once that can not be erased.
• CD-R discs are blank CDs that can record data written by a CD burner. After that, the data is permanent and can be read any number of times. ​

Additional Information

• The data burned onto a CD-R disc is permanent.

• CD-RW Stands for "Compact Disc Re-Writable."
  • A CD-RW is a blank CD that can be written to by a CD burner. 
  • CD-RW can be written multiple times.
• CD-ROM Stands for "Compact Disc Read-Only Memory."
  • A CD-ROM is a CD that can be read by a computer with an optical drive. 

• ​Another term of Worm (termed as 'malware') A computer worm is a malicious virus, that is a self-replicating software program that affects the functions of hardware and software programs.​​

The correct answer is Mr Sachin Pilot.

• As of June 2020, Mr. Sachin Pilot is the Minister of Science and Technology, Panchayati Raj of Rajasthan.

Key Points

• Mr. Sachin Pilot s the Minister of Science and Technology, Panchayati Raj of Rajasthan.
• He is also the current Deputy Chief Minister of Rajasthan.
• His constituency is Ajmer, Rajasthan.
• He is associated with Indian National Congress.

Additional Information

• Mr. Ashok Gehlot is the current Chief Minister of Rajasthan in the Government of Rajasthan.
• Mr. Bulaki Das Kalla is the Minister of Energy, Public Health & Engineering, Ground Water, Art, Literature, Culture & Archeology in the Government of Rajasthan.
• Master Bhanwarlal Meghwal is the Minister of Social Justice and Empowerment in the Government of Rajasthan.