Discoveries & Invention MCQs - Everyday Science Practice | PakExamPoint

Practise Discoveries & Invention MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.

Discoveries & Invention MCQs and revision practice

Study Discoveries & Invention through multiple-choice questions in Everyday Science. This subtopic contains 310 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these Discoveries & Invention MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

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Discoveries & Invention: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

251. What should be the rate of chest compression while doing CPR?

سی پی آر کرتے وقت سینے کے کمپریشن کی شرح کیا ہونی چاہیے؟

Check answer and explanation

Answer: None of these

Explanation EMT RESCUE 1122 "CPR" related question": CPR stands for “Cardiopulmonary Resuscitation”. ***** The compression rate during CPR should be 100- 150 compression per minute. *** You should compress the chest about 1.5 inches or 4 cm . ***** Arriving first at the scene, you find an unresponsive person with no pulse that has thrown up. Your fee CPR is not something you are comfortable giving them. we would do the next best thing for Compression only CPR ****** More than a hundred times per minute should be the rate of chest compression while doing CPR. **** Prolong CPR is suggested in a patient with Electric Shock ***** When will you decide to continue CPR on the unconscious Patient? when there is no chest rise and fall ****** During CPR the ratio of chest compression and breath is 30: 02 ND11-12-2022

252. Who is known as the father of Nuclear Physics?

نیوکلیئر فزکس کا باپ کس کو کہا جاتا ہے؟

Check answer and explanation

Answer: Ernest Rutherford

Explanation Ernest Rutherford , a British physicist probed atoms with alpha particles. He was known as the “ father of nuclear physics ”. He was awarded the Nobel prize for his contribution to the structure of the atom in 1908.

253. The famous Italian scientist Alessandro Volta is renowned for inventing _____?

مشہور اطالوی سائنسدان الیسانڈرو وولٹا _____ ایجاد کرنے کے لیے مشہور ہے؟

Check answer and explanation

Answer: Electric battery

Explanation Alessandro Volta was a famous Italian physicist. He is well-known for the invention of the first battery in 1800 . He was born in Como , Italy on February 18, 1745 . He was died in March 1827 .

254. Father of Modern Science Fiction is?

جدید سائنسی افسانے کا بانی کون ہے؟

Check answer and explanation

Answer: H.G. Wells

Explanation H.G. Wells is the father of modern science fiction. This title has also been given to Jules Verne and Hugo Gernsback. Born: 21 September 1866, Bromley, Kent, England Died: 13 August 1946 (aged 79), London, England

255. Neutron was discovered by?

نیوٹران کس نے دریافت کیا؟

Check answer and explanation

Answer: Chadwick

Explanation The British physicist Sir James Chadwick discovered neutrons in the year 1932. He was awarded the Nobel Prize in Physics in the year 1935 for this discovery.

256. Which of the following country has not landed on the moon?

مندرجہ ذیل میں سے کون سا ملک چاند پر نہیں پہنچا ؟

Check answer and explanation

Answer: France

Explanation List of Countries Landed on the Moon Countries Landed on Moon Notable Missions Year of First Lunar Landing Soviet Union Luna 2, Luna 9 1959 United States Apollo Program 1969 China Chang'e Series 2013 India Japan Chandrayaan-3 SLIM mission 2023 2024

257. An instrument that measure air pressure is called _____?

ہوا کے دباؤ کی پیمائش کرنے والا آلہ کیا کہلاتا ہے؟

Check answer and explanation

Answer: Barometer

Explanation The mercury barometer is the oldest type of baromete r . It was invented by the Italian physicist Evangelista Torricelli in 1643 .

258. First successful vaccination was done in 1796 by _____?

پہلا کامیاب ویکسینیشن 1796 میں _____ کے ذریعہ کیا گیا تھا؟

Check answer and explanation

Answer: Edward Jenner

Explanation In 1796 , Edward Jenner successfully used material from cowpox to vaccinate against smallpox . This was the first successful vaccination in medical history.

259. A Bolometer is used to measure:

پیمائش کرنے کے لیے کونسا بولومیٹر استعمال کیا جاتا ہے

Check answer and explanation

Answer: Heat Radiation

Explanation A bolometer is a device for measuring radiant heat by means of a material having a temperature-dependent electrical resistance. Bolometer was invented in 1878 by Samuel Pierpont Langley ( American astronomer)

260. The first American Astronaut to go into space was:

خلا میں جانے والا پہلا امریکی خلاباز کون تھا

Check answer and explanation

Answer: Allen Shepherd

Explanation Allen Shepherd became the first American to travel into space in 1961 , and in 1971 , he walked on the Moon.

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