18
Q:

# Who invented Radar?

 A) Henrey Backquerel B) Max Planck C) Robert Watson Watt D) Humphrey Davy

Answer:   C) Robert Watson Watt

Explanation:

RADAR stands for Radio Detection and Ranging.

Radar is a detecting system that uses radio waves to determine the range, angle, or velocity of objects. It operates in the ultra-high-frequency of the radio-frequency (RF) spectrum.

Uses ::

To detect

aircraft,

ships,

spacecraft,

guided missiles,

motor vehicles,

weather formations, and

terrain.

Subject: Inventions
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Q:

If M= 14,TANK= 61,then STARDOM=___________

 A) 79 B) 89 C) 99 D) 109

Answer & Explanation Answer: A) 79

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64 12168
Q:

The name of the first bank established in India was

 A) Bank of Hindustan B) Reserve Bank of Indian C) Imperial Bank D) State Bank of India

Answer & Explanation Answer: C) Imperial Bank

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33 4028
Q:

The Sum of three consecutive numbers is 126.Find the highest number.

 A) 41 B) 42 C) 43 D) 44

Answer & Explanation Answer: D) 44

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30 6518
Q:

Twice the difference between two numbers is equal to their sum. If one number is 15,find the other number.

 A) 15 B) 10 C) 5 D) 20

Answer & Explanation Answer: C) 5

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21 3799
Q:

The Gandhi-Irwin pact was signed in the year

 A) 1930 B) 1931 C) 1932 D) 1933

Answer & Explanation Answer: B) 1931

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24 5067
Q:

Four pairs of words are Given.Find the odd one out.

 A) Chalk: Slate B) Pencil: Notebook C) Pen: Ink D) Sketch pen: Drawing Book

Answer & Explanation Answer: D) Sketch pen: Drawing Book

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18 6115
Q:

Astrosat is India's first

 A) Reconnaissance satellite B) Remote sensing satellite C) space observatory D) Communication satellite

Answer & Explanation Answer: A) Reconnaissance satellite

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23 6318
Q:

Find the G.C.F. & L.C.M. of 20 and 28.

 A) 20,280 B) 5,280 C) 10,140 D) 4,140

Answer & Explanation Answer: B) 5,280

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35 5884