IT Trainer Questions


Q:

Instruments for measuring Solar Radiation?

A) Ammeter B) Pyranometer
C) Dynamometer D) Anemometer
 
Answer & Explanation Answer: B) Pyranometer

Explanation:

Solar radiation instruments may be produced to measure different types of solar energy. When sunlight encounters the Earth's atmosphere, some of it is absorbed or scattered by water vapor, aerosols, clouds, and other air molecules. The radiation which penetrates to the Earth's surface is termed direct solar radiation.

 

A thermopile pyranometer is a type of actinometer used for measuring solar radiation on a planar surface and it is designed to measure the solar radiation flux density (W/m2) from the hemisphere above within a wavelength range 0.3 μm to 3 μm.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Which sentence contains both an adverb and a conjunction?

A) Adam crept silently up the stairs, but couldn't slow his heartbeat. B) The storm caused flooding as predicted.
C) Sneha was a kind person, but she hated people who spread rumors. D) Do you want the shrimp or the crab?
 
Answer & Explanation Answer: A) Adam crept silently up the stairs, but couldn't slow his heartbeat.

Explanation:

The sentence which contains both an adverb and a conjunction is "Adam crept silently up the stairs, but couldn't slow his heartbeat."

 

Here, Adverb - Silently and Conjunction - But.

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Q:

The word photography literally means

A) Light crowning B) Light drawing
C) Light creations D) Light art
 
Answer & Explanation Answer: B) Light drawing

Explanation:

Photography is a word derived from Greek words Photo means light and graphe means drawing.'Hence it literally means light drawing.

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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Q:

Which online security campaign has been launched by Google India to safeguard internet users?

A) #SecurityCheckKiya B) #InternetSafetyKiya
C) #OnlineSecurityKiya D) #SecureInternetKiya
 
Answer & Explanation Answer: A) #SecurityCheckKiya

Explanation:

Google has launched new online security campaign #SecurityCheckKiya in India to promote security awareness among general public. The purpose of the campaign is to protect young and first-time web users from account hijacking, safeguard Android devices from malicious apps and secure all their personal data if they lose their device.

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Q:

What do you mean by undeclared and undefined variables ?

Answer

Difference between undeclared and undefined variables is defined as


Undeclared variables are those that do not exist in a program and are not declared. If the program tries to read the value of an undeclared variable, then a runtime error is encountered.


Undefined variables are those that are declared in the program but have not been given any value. If the program tries to read the value of an undefined variable, an undefined value is returned.

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Q:

Carbon in the ocean originates from the atmosphere.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

True, the carbon in the ocean originates from the atmosphere. The oceanic surface water absorbs the carbon dioxide gas from the atmosphere and dissolves in it.

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Q:

'.bak' extension refers to what kind of file?

A) Document B) Movie/Video file
C) Backup file D) Audio file
 
Answer & Explanation Answer: C) Backup file

Explanation:

In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.

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Q:

What is the primary purpose of most constitutions?

A) to provide a substitute for government B) to define and limit government power
C) to give the government absolute power D) to define a moral code for people to follow
 
Answer & Explanation Answer: B) to define and limit government power

Explanation:

There are many reasons why a constitution is needed. One of the primary purposes is to define and limit power of the government.

It gives the structures for the functioning of the country such as courts and parliament and limits the power.

e.g. to imprison without trial for the government.

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