Questions

Q:

In which year Bhutan adopted its Constitution?

A) 2004 B) 2006
C) 2008 D) 2010
 
Answer & Explanation Answer: C) 2008

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Q:

Which of the following is NOT a metamorphic rock?

A) Slate B) Schist
C) Diorite D) Phyllite
 
Answer & Explanation Answer: C) Diorite

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Q:

Which of the following is NOT an effect of Noise Pollution?

A) Death of Animals B) Tinnitus
C) Hypertension D) Ozone Depletion
 
Answer & Explanation Answer: D) Ozone Depletion

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Q:

What is the fundamental unit of amount of a substance?

A) Mole B) Candela
C) Kelvin D) Meter
 
Answer & Explanation Answer: A) Mole

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Q:

What is the SI unit of pressure?

A) Newton B) Weber
C) Pascal D) Henry
 
Answer & Explanation Answer: C) Pascal

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Q:

The attenuation in optical fibre is mainly due to

A) Scattering B) Absorption
C) Both (a) and (b) D) Neither absorption nor scattering
 
Answer & Explanation Answer: A) Scattering

Explanation:

The reason for transmitting data over optical fibers, is because the speed of data transmission through optical wires are equal to the speed of light. The intense speed of data transfer speed, has lead to the use of optical fibers. The optical fiber uses the technology of transferring light beams, from one end to the other end of optical cables. The attenuation in optical fiber is due to Scattering. The reason why scattering is caused, due to the folding, in the wire.

 

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Q:

When a number of resistance are connected in ___, their combined resistance is less than the smallest individual resistance.

 

A) parallel B) horizontal
C) series D) box
 
Answer & Explanation Answer: A) parallel

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Q:

A body is initially moving with a velocity of 10 m/s. It undergoes an acceleration of 2 m/s2 for 5 seconds. Find the displacement (in m) of this body in these 5 seconds.

 

A)  25 B)  37.5
C)  50 D)  75
 
Answer & Explanation Answer: D)  75

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