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Q:

Rotameter is used to measure

A) Vortex flow B) Density of fluids
C) Velocity of fluid in pipes D) Flow of fluids
 
Answer & Explanation Answer: D) Flow of fluids

Explanation:

A rotameter is a flow meter that measures volumetric flow of liquids and gases.

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Filed Under: Physics
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Q:

The colour of a thin film is due to

A) Scattering B) Dispersion
C) Diffraction D) Interference
 
Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

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Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40 B) 4000
C) 80 D) 2000
 
Answer & Explanation Answer: A) 40

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

ISRO successfully launches communication satellite on board of

A) GSLVMkIII B) GSLVMkII
C) GSLVMkI D) None of the above
 
Answer & Explanation Answer: A) GSLVMkIII

Explanation:
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Filed Under: General Awareness
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Q:

What begins the process of solar system formation?

Answer

Scientists believe that , about 4.6 billion years ago, the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star called a supernova.

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Subject: General Science Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

A) Separate B) Saparate
C) Saperate D) Seperate
 
Answer & Explanation Answer: A) Separate

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word

A)

Auixiliary

 B)

Auxiliary
C)

Auxiliarry

 D)

Auixliary
 
Answer & Explanation Answer: C)

Auxiliarry



Explanation:
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Filed Under: English
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Q:

What is a binary semaphore?

Answer

A binary semaphore is one, which takes only 0 and 1 as values. They are used to implement mutual exclusion and synchronize concurrent processes.


 

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Subject: Operating Systems

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