- Decomposition
- Reduction
- Oxidation
- Displacement
- c
-
Rusting is caused by oxidation in the presence of air, moisture or water.
Assistant Sub Inspector (ASI)
Assistant Sub Inspector (AS) all solved Current & Past Papers are included in this portion of ETEST Website. All Department’s Papers of Assistant Sub Inspector (ASI) i.e. Police Department, Airport Security Force, Anti-Corruption and etc are included in this section of ETEST Academy’s Website.We update all sections of ETEST Website on daily basis.
Atomic Number of Oxygen is …..
- 7
- 8
- 9
- 10
- b
-
Oxygen is represented by “O”.
Oxygen was discovered by Joseph Priestly in 1774.
Microphone converts sound energy into …….
- Heat Energy
- Electrical Signals
- Microwaves
- Optical Signals
- b
Atomic Number of Nitrogen is …….
- 7
- 8
- 9
- 10
- a
-
The symbol of Nitrogen is “N”.
Nitrogen was discovered by Daniel Rutherford.
Glass is made of the mixture of ….?
- Sand & Salt
- Quartz & Mica
- Sand & Silicate
- None of these
- c
Who invented Jet Engine?
- Lewis
- Waterman
- Sir Frank Whittle
- Gottle Dalmer
- c
-
Originally, Jet Engine was invention of Sir Frank Whittle, Hans Von Ohain and Albert Fono.
First Jet Engine was invented in 1930.
Which one of the following companies will launch Project Sky-bender to boost 5G internet speech?
- IBM
- Apple
- a
-
Project Skybender is a solar powered drones project.
The Empire State Building is located in:
- New York
- Birmingham
- Paris
- None of these
- a
-
The Empire State Building is a steel framed building.
It consist of 102 stories.
It was completed in 1931 in New York.
Which is the thinnest layer of earth?
- Mantle
- Core
- Crust
- None of these
- c
-
The crust layer of the land is 3-35km thick beneath the land and 1-8 km thick beneath the ocean.
Netherlands literally means?
- Lowest Countries
- Lower Countries
- Mouth of land
- Land of Sunset
- b
-
Netherlands is called lower countries because its elevation level is low.
Its 50% land is 3 feet above the sea level and 26% land is below sea level and 24% land is at sea level.
