Questions

Q:

The book Historia plantrum is written by

A) Aristotle B) Theophrastus
C) Hipporates D) Darwin
 
Answer & Explanation Answer: B) Theophrastus

Explanation:
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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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Q:

What is the total population of India in crores according to 2001 Census

A) 68 B) 84
C) 94 D) 102.70
 
Answer & Explanation Answer: D) 102.70

Explanation:
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Q:

What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space?

A) 18 km/sec B) 11.2 km/sec
C) 21 km/sec D) 35 km/sec
 
Answer & Explanation Answer: B) 11.2 km/sec

Explanation:

This 11.2 km/s is also known as the escape velocity. It works out to roughly 25000miles per hour 

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Q:

Which of the following will be the venue of the World Athletic Championship to be organized in 2017?

A) Tokyo B) Paris
C) New York D) London
 
Answer & Explanation Answer: D) London

Explanation:
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Q:

Plants that make their own food are called

A) Autotrophs B) Hydrophylls
C) Decomposers D) Heterotrophs
 
Answer & Explanation Answer: A) Autotrophs

Explanation:

Plants make their own food through the process of photosynthesis. Plants are self-sufficient. Green plants have the ability to prepare their own food and this is the reason why they are called autotrophs.

                                        Autotrophs1530267836.jpg image


They make their own food through the process of photosynthesis using light energy to make sugars from carbon dioxide (C02) and water (H20). The chlorophyll which is present in the leaves is the main reason for the production of food in the plants and it is the reason for the greenery of the leaves too.

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Q:

What is Throughput, Turnaround time, waiting time and Response time?

Answer

Throughput : number of processes that complete their execution per time unit.

Turnaround time : amount of time to execute a particular process.

Waiting time : amount of time a process has been waiting in the ready queue.

Response time : amount of time it takes from when a request was submitted until the firstresponse is produced, not output (for time-sharing environment).

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Q:

A man and his son are in a terrible accident and are rushed to the hospital in critical care. The doctor looks at the boy and exclaims "I can't operate on this boy, he's my son!" How could this be?

Answer

This is only possible when that doctor is boy's mother.

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