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Updated on October 1, 2023

DATA MINING TUTORIAL

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NUMBER SYSTEM

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JAVASCRIPT INTERVIEW QUESTIONS

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Refrigerators keep food unspoiled because
1). at its low temperature bacteria and moulds are Inactive
2). at its low temperature the germs are killed
3). at Its low temperature the germs are frozen
4). it sterilises the food

The element which is commonly used in nuclear for producing electricity by nuclear fission is
1). Radium
2). Plutonium
3). Uranium
4). Deuterium

Quartz is made of
1). Calcium Sulphate
2). Calcium Silicate
3). Sodium Sulphate
4). Sodium Silicate

The natural source of hydrocarbon is
1). Crude oil
2). Biomass
3). Coal
4). Carbohydrates

The chiefsource for the production of nitrogeneous fertilizers is :
1). Ammonia
2). Nitric acid
3). Nitrogen
4). Nitrogen dioxide

Which one of the following minerals is found in pure form?
1). Iron
2). Copper
3). Bauxite
4). Manganese

435: Conduction band electrons have more mobility than holes because they
1). are lighter
2). experience collision less frequently
3). have negative charge
4). needless energy to move them

Nucleus of an atom consists of
1). Proton
2). Neutron
3). Proton and Neutron
4). Electron Proton and Neutron

What is the name of that system which uses radioactivity to decide the period of materials of pre his tone period ?
1). Radium dating
2). Uranium dating
3). Carbon dating
4). Deuterium dating

An example of semiconductor is
1). Germansilver
2). Germanium
3). Phosphorous
4). Arsenic

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