Q:

Sound waves can not travel through a

A) copper wire placed in air	B) silver slab placed in air
C) glass prism placed in water	D) wooden hollow pipe placed in vacuum

Answer & Explanation Answer: D) wooden hollow pipe placed in vacuum

Explanation:

Sound is a kind of energy created when something vibrates. When this vibration reaches an ear, it is translated into what we recognize as a sound. Sound vibration must travel through matter. Therefore, it can travel through air and water but not through vacuum.

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Filed Under: Physics
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Q:

Where is second World health Expo being held?

A) Wuhan, China	B) New York, USA
C) Paris, France	D) Geneva, Switzerland

Answer & Explanation Answer: A) Wuhan, China

Explanation:

The World Health Expo will showcase the latest technology in fitness sports and the most realistically restored anti-epidemic scenes.

Both 1st and 2nd World Health Expo held at Wuhan, China.

1st on April 7 - 10, 2019

2nd on November 11 - 14, 2020

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Filed Under: General Awareness
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Q:

You can use the tab key to ________

A) move a cursor across the screen	B) indent a paragraph
C) move the cursor down the screen	D) both (a) and (b)

Answer & Explanation Answer: D) both (a) and (b)

Explanation:

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Q:

What happens when you boot up a PC?

A) Portions of the operating system are copied from disk into memory	B) Portions of the operating system are copied from memory onto disk
C) Portions of the operating system are compiled	D) Portions of the operating system are emulated

Answer & Explanation Answer: A) Portions of the operating system are copied from disk into memory

Explanation:

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Q:

Pashmina shawl is made from the hair of

A) Sheep	B) Goat
C) Rabbit	D) Yak

Answer & Explanation Answer: B) Goat

Explanation:

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Filed Under: Animals and Birds

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Q:

The _____ controls communications for the entire computer system

A) arithmetic-logic unit	B) semiconductor
C) motherboard	D) coprocessor

Answer & Explanation Answer: C) motherboard

Explanation:

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Q:

Rearrange the parts of the sentence in correct order.

If per capita income is taken

P-as the measure then we are
Q-away from 'great power' status
R-still some distance

A) PRQ	B) PQR
C) QPR	D) RPQ

Answer & Explanation Answer: A) PRQ

Explanation:

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Filed Under: English
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Q:

Improve the given sentence if necessary.

Ramesh is working in this factory for the past three months.

A) has been working	B) has been worked
C) had worked	D) No improvement

Answer & Explanation Answer: A) has been working

Explanation:

If some action has started in the past and is still continuing, then present perfect continuous tense should be used instead of present continuous tense. So, the phrase ‘is working’ needs to be replaced with ‘has been working’ to make the sentence contextually correct. Thus, the correct formation would be, ‘Ramesh has been working in this factory for the past three months’.

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Filed Under: English
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