Science And Tech Current affairs Mcqs with answers

Prepare Pakistan's Science and Tech Current affairs MCQs with answers and detailed explanations for nts tests. This section includes science current affairs quiz questions, technology current affairs mcqs, science and technology quiz questions and answers, science and technology questions for competitive exams, science and technology mcqs. Prepare below MCQs and you can also prepare for Economy and Business, National, Bills and Acts, Provincial, Famous Personalities, International, Sports, Politics, Important Days MCQs.

1. 21 The thickest layer of the earth is ___
   
   
   
   

   1. Crust

   2. Inner Core

   3. Outer Core

   4. Mantle

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   Added By: Admin Mcqsforum

   Answer

   : Mantle

   Explanation

   :
   The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust.

2. 22 Influenza in humans is caused by ____
   
   
   
   

   1. Bacteria

   2. Virus

   3. Fungi

   4. Protist

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   Added By: Admin Mcqsforum

   Answer

   : Virus

   Explanation

   :
   Influenza, commonly known as "the flu", is an infectious disease caused by an influenza virus

3. 23 To prevent electric shocks, ___ is placed in circuit
   
   
   
   

   1. Amneter

   2. Fuse

   3. Diode

   4. Voltmeter

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   Added By: Admin Mcqsforum

   Answer

   : Fuse

   Explanation

   :
   In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit.

4. 24 The metal which is liquid at room temperature is ____
   
   
   
   

   1. Zinc

   2. Magma

   3. Crystals

   4. Granite

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   Added By: Admin Mcqsforum

   Answer

   : Magma

   Explanation

   :
   Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.

5. 25 Electricity produced by burning fossil fuels results in ___
   
   
   
   

   1. A better growth of crops

   2. Pollution

   3. More benefits

   4. More discoveries

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   Added By: Admin Mcqsforum

   Answer

   : Pollution

   Explanation

   :
   Fossil fuel power plants burn carbon fuels such coal, oil or gas to generate steam that drives large turbines that produce electricity. These plants can generate electricity reliably over long periods of time. However, by burning carbon fuels they produce large amounts carbon dioxide, which causes climate change.

6. 26 Which mobile phone company recently released Batterygate apology
   
   
   
   

   1. Windows Microsoft

   2. Samsung

   3. Apple

   4. Google

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   Added By: Admin Mcqsforum

   Answer

   : Apple

   Explanation

   :
   Apple apologizes for iPhone slowdowns and offers $29 battery replacements. Apple released a statement on 28 december, 2017 addressing the company's controversial decision to slow down older phones to protect battery stability.

7. 27 The product line of Consumer electronic devices managed by Google is ____
   
   
   
   

   1. Blackberry

   2. Nexus

   3. Google Earth

   4. Oppo

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   Added By: Admin Mcqsforum

   Answer

   : Nexus

   Explanation

   :
   Google Nexus is a line of consumer electronic devices that run the Android operating system. Google manages the design, development, marketing, and support of these devices.

8. 28 Entomology is the study of ___
   
   
   
   

   1. Insects

   2. Animals

   3. Skin Diseases

   4. Eyes

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   Added By: Admin Mcqsforum

   Answer

   : Insects

   Explanation

   :
   Entomology is the scientific study of insects, a branch of zoology.

9. 29 Why is exposure to sunlight is good for health
   
   
   
   

   1. The infrared light kills bacteria in the body

   2. The ultraviolet rays convert skin oil into Vitamin D

   3. Resistance power increases

   4. The pigment cells in skin produce healthy tan

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   Added By: Admin Mcqsforum

   Answer

   : The ultraviolet rays convert skin oil into Vitamin D

   Explanation

   :
   Human skin can make large amounts of vitamin D when lots of skin is exposed and the sun is high in the sky. Your body is designed to get the vitamin D it needs by producing it when your bare skin is exposed to sunlight.

10. 30 In International and Olympics Basket tournaments, the dimensions of basket ball court should be ____
    
    
    
    

    1. 25 by 15

    2. 15 by 25

    3. 28 by 18

    4. 28 by 15

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    Added By: Admin Mcqsforum

    Answer

    : 28 by 15

    Explanation

    :
    Dimensions. Basketball courts come in different sizes. In the National Basketball Association (NBA), the court is 94 by 50 feet (28.7 by 15.2 m). Under International Basketball Federation (FIBA) rules, the court is minutely smaller, measuring exactly 28 by 15 metres