Questions

Q:

The mechanism of material removal in EDM process is

A) Erosion and Cavitations B) Cavitations and Evaporation
C) Melting and Evaporation D) Melting and Corrosion
 
Answer & Explanation Answer: C) Melting and Evaporation

Explanation:

Electrical discharge machining (EDM), also known as spark machining, spark eroding, burning, die sinking, wire burning or wire erosion, is a manufacturing process whereby a desired shape is obtained by using electrical discharges.

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Filed Under: Physics
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Q:

Which statement regarding the era of Reconstruction is FALSE?

A) the 14th Amendment made African-Americans citizens of the U.S. B) the 13th Amendment outlawed slavery in all American states
C) federal law was changed to abolish slavery in states where it still existed D) state laws and customs upheld the constitutional amendments
 
Answer & Explanation Answer: D) state laws and customs upheld the constitutional amendments

Explanation:
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Q:

A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:

A) 150 J B) 100 J
C) 50 J D) 75 J
 
Answer & Explanation Answer: A) 150 J

Explanation:
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Filed Under: Physics
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Q:

How many Nucleotides make up a Codon?

A) 3 B) 4
C) 5 D) 6
 
Answer & Explanation Answer: A) 3

Explanation:

3 Nucleotides make up a Codon. 

The nucleotide triplet that encodes an amino acid is called a codon.

Each group of three nucleotides encodes one amino acid.

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Filed Under: Biology
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Q:

Self pollination will lead to

A) Inbreeding B) Over breeding
C) Outbreeding D) Rare breeding
 
Answer & Explanation Answer: A) Inbreeding

Explanation:

Self pollination occurs in the flowers when the pollen grains of the flower falls on the stigma of the same due to wind or insects like moths and bees. This lead to the inbreeding.

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Filed Under: Biology
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Q:

The goal of a market economy is to

A) equity B) security
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) equity

Explanation:
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Filed Under: Indian Economy
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Q:

Cognitive neuroscientists can examine the brain with

A) PET & MRI B) Gama images & electrolysis
C) electrolysis & PET D) MRI & electrolysis
 
Answer & Explanation Answer: A) PET & MRI

Explanation:
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Filed Under: General Science
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Q:

Which among the following type of soil has the largest area covered in India?

A) Laterite B) Alluvial
C) Black D) Red
 
Answer & Explanation Answer: B) Alluvial

Explanation:

Alluvial type of soil has the largest area covered in India. Alluvial soils are fine-grained fertile soil deposited by water flowing over flood plains or in river beds. Most of the soil is Sandy and clayey soils are not uncommon.

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Filed Under: Indian Geography
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