scientist, discoveries & inventions MCQ section 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general awareness mcq - 4 EXERCISES
The following question based on scientist, discoveries & inventions topic of general awareness mcq
(a) V. Poulsen
(b) Gordon Matthews
(c) J.A. Fleming
(d) Alexander Graham Bell
The correct answers to the above question in:
Answer: (b)
Voice-mail (also known as voicemail, voice message or voice bank) is a computer-based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to individuals, organizations, products and services, using an ordinary telephone.
Voicemail systems were developed in the late 70’s by Voice Message Exchange (VMX). They became popular in the early 80’s when they were made available on PC-based boards.
Voice mail was the brainchild of Gordon Mathews, a successful entrepreneur who held 35 US and foreign patents at the time of his death on February 23, 2002.
Practice scientist, discoveries & inventions (scientist, discoveries & inventions MCQ section 3) Online Quiz
Discuss Form
Read more scientist discoveries and inventions Based General Awareness Questions and Answers
Question : 1
The microscope is used for the study of
a) Small objects
b) Micro and nearby objects
c) Distant objects
d) Nearby objects
Answer »Answer: (b)
Question : 2
Who invented Penicillin ?
a) Edward Jenner
b) William Harvey
c) Alexander Fleming
d) Louis Pasteur
Answer »Answer: (c)
Alexander Fleming was a Scottish biologist, pharmacologist and botanist. His best-known discoveries are the enzyme lysozyme in 1923 and the antibiotic substance penicillin from the mould Penicillium notatum in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain.
Question : 3
Root pressure is measured by
a) Auxanometer
b) Barometer
c) Manometer
d) Atmometer
Answer »Answer: (a)
Root pressure is measured by an instrument called an auxanometer. The auxanometer measures plant growth as well as the pressure developed within the xylem cells of roots.
Question : 4
Telephone was invented by
a) Newton
b) Alexander Graham Bell
c) Stevenson
d) Baird
Answer »Answer: (b)
Alexander Graham Bell, an eminent Scottish-born scientist, is credited with inventing the first practical telephone in 1876. Among one of his first innovations after the telephone was the “photophone,” a device that enabled sound to be transmitted on a beam of light.
Question : 5
The study of relation of animals and plants to their surroundings is called ________
a) Iconology
b) Ecology
c) Genealogy
d) Ethrology
Answer »Answer: (b)
Ecology is defined as the study of the patterns and processes governing the abundance and distribution of organisms and their relationships to their environment. It is the science that deals with the inter-relationship between the various organisms living in an area and their relationship with physical environment.
Question : 6
Who invented thermoscope, an early form of thermometer?
a) Galileo
b) Beno Gutenberg
c) Sir Christopher Wren
d) Charles F. Richter
Answer »Answer: (a)
GET scientist, discoveries & inventions PRACTICE TEST EXERCISES
scientist, discoveries & inventions MCQ section 1
scientist, discoveries & inventions MCQ section 2
scientist, discoveries & inventions MCQ section 3
scientist, discoveries & inventions MCQ section 4
scientist, discoveries & inventions Shortcuts and Techniques with Examples
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
Syllogism Practice Questions Answers PDF - IBPS Clerk 2024
Practice Verbal Reasoning Syllogism multiple choice questions and answers with Fully solved explanation, PDF for the IBPS Clerk Prelims 2024 Bank Exam
Continue Reading »
IBPS Clerk Prelims 2024 Synonyms Questions Solved Answers
Most important IBPS Clerk Prelims 2024 Synonyms and Antonyms multiple choice questions and answers with detailed solutions, English vocabulary PDF Download
Continue Reading »
New Cloze Test Questions and Answers PDF - IBPS Clerk 2024
The most important Cloze Test questions with detailed answers for upcoming IBPS Clerk prelims 2024. Latest English verbal ability practice MCQs, PDF
Continue Reading »
Mensuration Aptitude Practice Mcq Questions IBPS Clerk 2024
Most Important Practice Mensuration aptitude multiple choice questions, answers with detailed solutions, PDF beginner to advanced for IBPS Clerk Prelims 2024
Continue Reading »