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Everyday Science 2141 MCQs [All-Courses]

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Prepare effectively with our Everyday Science MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Physics, Chemistry, Biology, Environment, Human Body, Inventions, Scientific Laws, and daily-life science concepts.
Strengthen your scientific understanding, improve MCQS accuracy, and boost your exam performance with well-structured and updated topics.

All Topics  2141

When a star becomes a singularity and has zero volume and infinite density, it is called_______________?

A White dwarf
B Blue giant
C Wolf-Raynet star
D Black hole
Correct Answer: Black hole

You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star.

A Wolf-Rayet star
B Red supergiant
C Stellar storm
D Pulsar
Correct Answer: Wolf-Rayet star

In a typical H-R diagram, stars are graphed by these two characteristics:

A Temperature and luminosity
B Luminosity and distance
C Distance and temperature
D Size and distance
Correct Answer: Temperature and luminosity

A pulsar is a rapidly spinning neutron star which emits:

A A blinding light when it aligns with the planets
B Radio waves detectable from Earth
C A gravitational pull which attracts high energy dust particles
D Enough energy to power itself indefinitely
Correct Answer: Radio waves detectable from Earth

What sub-class of neutron star is known for its extremely high magnetic field?

A Magnetar
B Quasar
C Magneto
D Magnetta
Correct Answer: Magnetar

When our sun reaches the end of its red giant phase, it will turn into a___________?

A Supernova
B White Dwarf
C Black Hole
D Neutron Star
Correct Answer: White Dwarf

Insulin drug was discovered by____________?

A Charles Herbert Best
B Prof John James Rickard Macleod
C Sir Frederick Grant Banting
D Leonard Thompson
Correct Answer: Sir Frederick Grant Banting

Most drugs are excreted through_____________?

A Kidney
B Skin
C Gallbladder
D Lungs
Correct Answer: Kidney

A glass chimney stops an oil lamp from smoking because:

A It increases the supply of oxygen to the flame by convection
B The heat produced ensures complete
C Both to these
D Neither of these
Correct Answer: Both to these

The common refrigerant used in domestic Refrigerator is_____________?

A Neon
B Spirit
C Freon/Ammonia
D Methane
Correct Answer: Freon/Ammonia
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