Q:

Microwave communication uses high-frequency.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

Microwaves are high-frequency signals in the 300 MHz to 300 GHz range. This is in contrast to radio signals, which are typically broadcast in all directions. Radio signals operate in the 3 Hz to 300 MHz range.

Microwave signals are used for both satellite and ground-based communications.

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Subject: Physics
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Q:

Improve the bracketed part of the sentence.

Everyday we (have usually) dinner at 8 o'clock.

A) usually have	B) have usual
C) have had usually	D) no improvement

Answer & Explanation Answer: A) usually have

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

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Q:

Improve the bracketed part of the sentence.

(It is) a pleasant day, we went for a walk.

A) Having been	B) It being
C) It was	D) no improvement

Answer & Explanation Answer: B) It being

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

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Q:

The fastest growing plant is ______ ?

A) Ashoka	B) Banyan
C) Eucalyptus	D) Rose

Answer & Explanation Answer: C) Eucalyptus

Explanation:

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Filed Under: General Science
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32 6173

Q:

Fish and other aquatic creatures can live inside a deep frozen pond because

A) fish are cold-blooded animals	B) ice is a bad conductor of heat
C) there will always be water just beneath the ice level	D) they can adapt themselves to live in ice

Answer & Explanation Answer: C) there will always be water just beneath the ice level

Explanation:

Water has the maximum density at $4^{o} C$ . So at this temperature, it sinks down to bottom and stays here. If it cools further, it will become less dense and move up. So while the upper layers can cool enough to form ice, the bottom layers remain as water at $4^{o} C$ .

Therefore, (C) is correct.

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Filed Under: Physics
Exam Prep: CAT , AIEEE
Job Role: Analyst

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Q:

The dolphin is

A) Fish	B) Reptile
C) Mammal	D) Turtle

Answer & Explanation Answer: C) Mammal

Explanation:

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Filed Under: Animals and Birds

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Q:

Which one of the following animals was not represented on the terracotta art of the Harappan culture

A) Cow	B) Elephant
C) Rhinoceros	D) Tiger

Answer & Explanation Answer: A) Cow

Explanation:

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Filed Under: Indian History

2 6167

Q:

Which city of Israel has been recognized as its New Capital by the United States of America?

A) Jerusalem	B) Haifa
C) Bersheba	D) Tel Aviv

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