What is the SI unit of time? MCQ with Answer and Explanation

What is the SI unit of time?

A. Second

B. Minute

C. Millisecond

D. Hour

Answer: Option A

The second (s) is the SI base unit of time.

This question belongs to: Static General Knowledge Science and Technology

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Question #1 Report Error

The first computer was invented by:

A. Alan Turing

B. Charles Babbage

C. John von Neumann

D. Bill Gates

Correct Answer: Option B

Explanation:
Charles Babbage designed the Analytical Engine.

This question belongs to: Static General Knowledge Science and Technology

Question #2 Report Error

Which Indian scientist is known for the development of the smallpox vaccine?

A. None, it was discovered earlier

B. Dr. Y. Subba Row

C. Dr. Hargobind Khorana

D. Dr. Edward Jenner

Correct Answer: Option A

Explanation:
Edward Jenner developed the smallpox vaccine; Indian contributions are notable in other vaccines.

This question belongs to: Static General Knowledge Science and Technology

Question #3 Report Error

Which metal is liquid at room temperature?

A. Bromine

B. Mercury

C. Sodium

D. Gallium

Correct Answer: Option B

Explanation:
Mercury is the only metal that is liquid at standard temperature and pressure.

This question belongs to: Static General Knowledge Science and Technology