All MCQs - JEST Past Papers Practice | PakExamPoint

Practise All MCQs in JEST Past Papers. Attempt multiple-choice questions, check answers and revise related subtopics.

All MCQs and revision practice

Study All through multiple-choice questions in JEST Past Papers. This subtopic contains 992 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these All 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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All: questions and answer review

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381. A student put 25.0 cm³ of dilute hydrochloric acid into a conical flask. The student added 2.5 g of solid sodium carbonate and measured the change in temperature of the mixture: Which apparatus does the student need to use to obtain the most accurate results?

Check answer and explanation

Answer: Balance, Pipette, Thermometer

Explanation To obtain accurate results, precise measurement of mass and volume is essential. A balance is used to measure 2.5 g sodium carbonate accurately. A pipette measures 25.0 cm³ acid more accurately than a measuring cylinder. A thermometer is needed to record temperature change. Therefore, these three give the most accurate results. Last verified on 12-04-2026

382. ھيٺين مان اھڙي جملي جي چونڊ ڪريو جنھن ۾ ڪا غلطي موجود آھي: تون دير سان ڇو آيو آهين؟، ڪمپيوٽر ھڪ جديد ايجاد آھي، ھيءَ سنڌي ٻاراڻو ڪتاب آھي، انھن مان ڪو بہ نہ

Check answer and explanation

Answer: ھيءَ سنڌي ٻاراڻو ڪتاب آھي

Explanation ھيٺين مان اھڙي جملي جي چونڊ ڪريو جنھن ۾ ڪا غلطي موجود آھي: ھيءَ سنڌي ٻاراڻو ڪتاب آھي

383. How much percentage (%) of the Earth's Surface is covered with water?

زمین کی سطح کا کتنا فیصد (%) پانی سے ڈھکا ہوا ہے؟

Check answer and explanation

Answer: 70% (71%)

Explanation Earth water coverage: 71% Land area: 29% Ocean water: 97% of total water Fresh water: 3% of total water Largest ocean: Pacific Ocean Last verified on 10-04-2026

384. In the absence of Quaid-e-Azam, who led the Muslims delegation in the third round table conference?

قائداعظم کی غیر موجودگی میں تیسری گول میز کانفرنس میں مسلمانوں کے وفد کی قیادت کس نے کی؟

Check answer and explanation

Answer: Sir Agha Khan

Explanation In 1932 third round table conference held *** Sir Agha Khan led the mulim delegation. First round table conference: 1930 2nd round table conference : 1931 3rd round table conference : 1932 All round table conference held in London *** The three Round Table Conferences of 1930–32 were a series of conferences to formulate the future constitution of India in the light of suggestions given by the Indian Leaders *** Gandhi a leader does not attend the first round table conference AGM-24-12-2022

385. In Bohr's model, electrons revolve around the nucleus in?

بوہر کے ماڈل کے مطابق الیکٹران نیوکلئیس کے گرد کس میں حرکت کرتے ہیں؟

Check answer and explanation

Answer: Fixed energy levels

Explanation Bohr’s model states that electrons move in fixed energy levels (shells). These paths are also called orbits or stationary states . Each orbit has a definite energy. Electrons do not lose energy in these orbits. Last verified on 12-04-2026

386. In Space, an exploration Spectroscope is used for the following?

خلا میں، ایک ایکسپلوریشن سپیکٹروسکوپ کو درج ذیل کے لیے استعمال کیا جاتا ہے۔

Check answer and explanation

Answer: To study chemical composition of Stars

Explanation In space exploration , a spectroscope is typically used to analyze the light coming from stars, planets, and other celestial objects to determine their chemical composition. This helps scientists understand the formation and evolution of stars, planets, and galaxies.

387. Qantas is an airline of which country?

قنطاس کس ملک کی ایئر لائن ہے؟

Check answer and explanation

Answer: Australia

Explanation Qantas Airways Limited is the airline of Australia it is the country's largest airline by fleet size, international flights it is the second oldest airline having been founded in November 1920 they began international passenger flights i n May 1935. its Headquarters in Mascot, New South Wales , Australia ND23-4-2023

388. The difference between +16 and +28 is _____?

Check answer and explanation

Answer: -12

Explanation The difference between +16 and +28 is: +16 - (+28) = +16 - 28 = -12

389. The more parts of your brain you use/employ during learning, the more likely you are to ______ information/knowledge.

سیکھنے کے دوران آپ اپنے دماغ کے جتنے زیادہ حصے استعمال کرتے/ استعمال کرتے ہیں، اتنا ہی زیادہ امکان آپ کے ______ معلومات/ علم کا ہوتا ہے۔

Check answer and explanation

Answer: Retain

Explanation Engaging multiple parts of the brain (e.g., through visual, auditory, and kinesthetic methods) helps in stronger memory formation. This leads to better retention of information and deeper understanding. Here Retain means حاصل کرنا

390. Among the following communication mediums, which one requires alignment between sender and receiver for long-range communication?

درج ذیل کمیونیکیشن میڈیمز میں سے، طویل فاصلے تک مواصلات کے لیے کس کو بھیجنے والے اور وصول کنندہ کے درمیان صف بندی کی ضرورت ہے؟

Check answer and explanation

Answer: Microwaves

Explanation Microwave Communication uses high-frequency radio waves. It requires line-of-sight (direct alignment) between sender and receiver . Used for long-distance communication like towers and satellites. Signals cannot bend much around obstacles. Last verified on 12-04-2026

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