Questions

Q:

The hymns of ' Rigaveda ' are the work of

A) one author B) four author
C) seven author D) many author
 
Answer & Explanation Answer: D) many author

Explanation:
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Filed Under: Indian History

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Q:

Pollination is best defined as

A) growth of pollen tube in ovule B) visiting flowers by insects
C) germination of pollen grains D) transfer of pollen from anther to stigma
 
Answer & Explanation Answer: D) transfer of pollen from anther to stigma

Explanation:

Pollination is when pollen grains from an anther, the male portion of a flower, are transferred to a female part of the flower, known as the stigma. In order for pollination to be successful, the pollen grains transferred must be from a flower of the same species.

 

After the pollen grains land on the stigma, they create a pollen tube through the length of the style or stalk connecting the stigma and ovary. Once the pollen tube is complete, the pollen grain will send sperm cells from the grain down to the ovary. When the sperm cells reach the ovary and the egg cells, fertilization will occur, which will result in the formation of the seed. The seed will then be released from the parent plant and will be able to grow into a plant and continue the reproductive cycle using the method of pollination.

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Filed Under: Biology
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14 7446
Q:

What is the difference between lean manufacturing and JIT (Just-in-Time) Manufacturing?

Answer



Lean Manufacturing: catching the concept of JIT(Just-in-time) and re-examines it from the client point of view. Anything that is made should put something of valuable to the client’s requirement. For example, if you are manufacturing stereo system for a luxury car, you will imagine from the customer point of view like space occupancy, durability, sound quality, medium or loud sound, etc.


  JIT (Just-in-Time):  This methodology is described to provide that a product or part would arrive just in time to be used. This method saves the price of the unused inventory, and eject the need of piling up inventory.    


 

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Subject: Manufacturing

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Q:

What structure separates the thoracic cavity from the abdominal cavity?

A) Diaphragm B) Liver
C) Lungs D) Heart
 
Answer & Explanation Answer: A) Diaphragm

Explanation:

A Dome-shaped, muscular and membranous structure that separates as a partition of the thoracic and abdominal cavities is Diaphragm. 

 

                                               What_structure_separates_the_thoracic_cavity_from_the_abdominal_cavity1533705594.png image

 

Thoracic or chest cavity ::  It is the cavity where the heart and lungs are present. It is the second largest hallow space in the body.It also has vertebral column, ribs, breast bone,...

 

Abdominal cavity :: It is the cavity where the digestive tract, liver, kidneys, the spleen, pancreas,... are located. It is the largest hallow space of the body.

 

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Filed Under: General Science
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6 7434
Q:

Who invented the BALLPOINT PEN?

A) Write Brothers B) Waterman Brothers
C) Biro Brothers D) Bicc Brothers
 
Answer & Explanation Answer: C) Biro Brothers

Explanation:
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Filed Under: Inventions

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Q:

The magnetic moment (spin only) of  [NiCl4]2-is

A) 1.41 BM B) 1.82 BM
C) 5.46 BM D) 2.82 BM
 
Answer & Explanation Answer: D) 2.82 BM

Explanation:

Hybridisation of Ni is e-  

Unpaired 3d8in  is 2 

So Ω = n(n+2)BM=2x4 = 8 = 2.82BM

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Filed Under: Chemistry
Exam Prep: AIEEE

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Q:

Translation of the dna sequence AAGCTGGGA would result in

A) a DNA strand with the base sequence TTCGACCCT B) an mRNA strand with the sequence TTCGACCCT
C) a sequence of three amino acids linked by peptide bonds D) an mRNA strand with the sequence UUGCACCCU
 
Answer & Explanation Answer: A) a DNA strand with the base sequence TTCGACCCT

Explanation:

Translation_of_the_dna_sequence_AAGCTGGGA_would_result_in_a_DNA_strand_with_the_base_sequence_TTCGACCCT1557489837.jpg image

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Filed Under: Biology
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7 7424
Q:

Light travels slowest in

A) Glass B) Water
C) Air D) Vacuum
 
Answer & Explanation Answer: A) Glass

Explanation:

Because the refractive index of glass is highest, light travels slowly in Glass. 

We know that the speed of light depends on the refraction index. The higher the index of refraction is, the slower the speed of light is.


R.I of air and vacuum = 0 (air is a teeny bit more but can be taken as 0)
R.I of water = 1.33
R.I of glass = 1.4.

 

Hence, Light travels slowest in Glass.

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Filed Under: Physics
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