Science and Technology GK Questions

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Science and Technology GK Questions

Welcome to our engaging blog, "Exploring the Wonders of Science and Technology: A Journey through GK Questions," where curiosity meets knowledge! In this digital space, we embark on a fascinating voyage through the realms of science and technology, unravelling the mysteries that shape our modern world. Through a curated collection of Science and Technology General Knowledge (GK) questions, we invite you to delve into the captivating universe of scientific innovations and technological marvels.

Science and Technology

Our blog Science and Technology General Knowledge (GK) Questions is your go-to destination for stimulating GK questions related to various scientific disciplines, cutting-edge technologies, historical breakthroughs, and contemporary advancements. Whether you're a science enthusiast, a tech geek, a student, or just someone eager to expand their knowledge horizons, our blog offers a diverse range of thought-provoking questions designed to pique your interest and challenge your intellect.

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Science and Technology GK Questions

Q :  

Which is a major essential lipophilic (fat-soluble) vitamin required for the protection of cell membranes and the formation of red blood cells (RBCs)?

(A) Vitamin A

(B) Vitamin C

(C) Vitamin D

(D) Vitamin E

Correct Answer : D
Explanation :

Vitamins A, D, E, and K are called the fat-soluble vitamins, because they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats. Vitamin E deficiency, which is rare and usually due to an underlying problem with digesting dietary fat rather than from a diet low in vitamin E, can cause nerve problems.

Q :  

What is the correct statement related to Avogadro?

(A) Avogadro made a distinction between electrons and neutrons.

(B) Avogadro discovered a difference between animal and plant cell.

(C) Avogadro discovered electrons.

(D) Avogadro made a distinction between atoms and molecules

Correct Answer : D
Explanation :

This is a fundamental constant in chemistry that represents the number of atoms or molecules in one mole of a substance. (Option 4 is correct) Its value is approximately 6.022 x 1023, and it is denoted by the symbol "N_A". Avogadro's number is a key concept in stoichiometry. The branch of chemistry deals with the quantitative relationships between reactants and products in chemical reactions.

Q :  

In which year did Rudolf Virchow published an essay titled ‘Cellular Pathology’ in which he famously declared that "every cell arises from another cell”?

(A) 1865

(B) 1835

(C) 1845

(D) 1855

Correct Answer : D
Explanation :

n 1855, at the age of 34, he published his now famous aphorism “omnis cellula e cellula” (“every cell stems from another cell”). With this approach Virchow launched the field of cellular pathology. He stated that all diseases involve changes in normal cells, that is, all pathology ultimately is cellular pathology.

Q :  

The National Chemical Laboratory is situated in– 

(A) New Delhi

(B) Bengaluru

(C) Pune

(D) Patna

Correct Answer : C
Explanation :

The National Chemical Laboratory (NCL) is an ~ Indian Government laboratory based in Pune, popularly known as NCL, a constituent member of the Council of Scientific and Industrial Research (CSIR) India, it was established in 1950

Q :  

ISRO launched the world’s first satellite dedicated to education, the EDUSAT in the month of– 

(A) June, 2004

(B) July, 2004

(C) August, 2004

(D) September, 2004

Correct Answer : D
Explanation :

EDUSAT or GSAT-3 is a communications satellite which was launched on 20th September, 2004 by the Indian Space Research Organisation. EDUSAT is the first Indian satellite built exclusively to serve the educational sector. It has revolutionised classroom teaching through IP based technology

Q :  

In the format of the IUPAC name of the organic compound, the term ‘Root’ is used to represent:

(A) the number of carbon atoms in the parent chain

(B) the presence of side chains or substituent groups

(C) functional groups that may be present in the compound

(D) the cyclic or acyclic nature of the given compound

Correct Answer : A
Explanation :

The Word root indicates the total number of carbon atoms present in the longest carbon chain belonging to the compound For example, 'Meth' refers to a chain with 1 carbon atom and 'Pent' refers to a chain with 5 carbon atoms. metalloid in dictionary chemical name is Naoh. Nylon properties: Atomic number of iodine. Dobereiner Traids an Atomic compound.

Q :  

A geostationary satellite revolves round the Earth from– 

(A) East to West

(B) West to East

(C) North to South

(D) South to North

Correct Answer : B
Explanation :

Geostationary satellites are located exactly above the Earth’s equator and revolves around the Earth in a circular orbit. Their revolving speed and direction (West to East) are exactly same as that of the Earth, which makes it look stationary from the Earth’s surface.

Q :  

By what metabolic process in the kitchen can you make food like curd, paneer and sauerkraut?

(A) Pasteurisation

(B) Fermentation

(C) Condensation

(D) Steaming

Correct Answer : B
Explanation :

Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.

Q :  

In 1928, who discovered that when a ray of coloured light enters a liquid, a fraction of the light scattered by that liquid is of a different colour?

(A) SN Bose

(B) Lord Rayleigh

(C) CV Raman

(D) John Tyndall

Correct Answer : C
Explanation :

Sir Chandrasekhara Venkata Raman, discovered on 28 February 1928, that when a beam of coloured light entered a liquid, a fraction of the light scattered was of a different color, dependent on material property. This radiation effect of molecular scattering of light bears the name of ‘Raman Effect’, from which many applications in photonic communications and spectroscopy evolved. The Raman Effect is the process of scattering light particles by molecules of a medium.

Q :  

‘PCB’ stands for– 

(A) Programme Control Block

(B) Process Control Block

(C) Process Communication Block

(D) None of the above

Correct Answer : B
Explanation :

Process Control Block (PCB, also called Task Controlling Block, Task Structure or Switchframe) is a data structure in the Operating System kernel containing the information needed to manage a particular process.The PCB is the manifestation of a process in an Operating System.

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