Questions

Q:

What stays where it is when it goes off?

A) An Alarm B) A T.V
C) A light switch D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All the above will stay where they are when they goes off. Basically anything that can swithch on or off will come under this.

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Filed Under: Logic Puzzles
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Q:

Logical puzzle

You want to send a secret message to your friend Alex in the mail. But Sam, who you don't trust, has access to all your mail. So you put your message in a box with a lock. But you are not allowed to send a key! How can you get your message through securely?

Answer

- Send the box with the lock to Alex. 


- Alex can't open it, but can put another lock on the box. 


- Alex sends this box with the 2 locks back to you, you unlock your lock and send it back to Alex again.


- So there is just Alex's lock on the box and Alex can now open it.

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Subject: Logic Puzzles

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Q:

Which of these is NOT a lipid?

A) Wax B) Cholesterol
C) RNA D) Phospholipid
 
Answer & Explanation Answer: C) RNA

Explanation:

RNA is not a lipid among the given options.

 

A lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.

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Filed Under: Biology
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4 4956
Q:

Heritable variation is required for which of the following?

A) Evolution B) Asexual reproduction
C) Mitosis D) Meiosis
 
Answer & Explanation Answer: A) Evolution

Explanation:

Heritable variation is one of the four most important factors that affect whether natural selection can occur. These factors include

1) Heritable variation

2) Descent with modification

3) Struggle for survival, and necessarily if the others are satisfied

4) Survival of the fittest.

Heritable variation allows for possibly beneficial, negative, or even neutral mutations to get filtered during each generation by natural selection--weeding out negative mutations, passing on positive and neutral ones. Without heritable variation, species would quickly fall victim to parasites who take advantage of identical genetic material in a population and evolution would not occur.

Variation is the raw material of evolution.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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Q:

Why address bus in unidirectional and data bus is bidirectional?

Answer

Because there is no need address traansaction between processor and peripheral device but data bus is needed because data has to be read and write

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Subject: Hardware

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Q:

A colour blind person has difficulty in distinguishing which of the two colours ?

A) Green & Red B) White & Red
C) Blue & Red D) Red & Black
 
Answer & Explanation Answer: A) Green & Red

Explanation:
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Filed Under: Biology
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20 4953
Q:

Logical puzzle

At a restaurant, how could you choose one out of three desserts with equal probability with the help of a coin? What if the coin is biased and the bias is unknown?

Answer

Our solution:


Toss the coin twice.
Let TH, HT and TT correspond to the three choices.
And if you get HH, just repeat (so it takes 8/3 tosses on average).


BIASED COIN

If the coin was biased, TH and HT would occur with equal probability.
So you could assign THHT, HTTH and THTH to the three choices, with other 4-toss outcomes rejected.
Or you could assign HTT, THT and TTH to the three choices, with other 3-toss outcomes rejected.

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Subject: Logic Puzzles

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Q:

Who was the founder of Mahakali Pathshala in Calcutta?

A) Her Holiness Mataji Maharani Tapaswini B) Sister Nivedita
C) Madamee Blavatsky D) Sarojini Naidu
 
Answer & Explanation Answer: A) Her Holiness Mataji Maharani Tapaswini

Explanation:

Mataji Maharani Tapaswini was one of the strongest proponents of female education in India. Her greatest contribution came in the form of the Mahakali Pathshala which she set up in Kolkata in 1893.

The school was a completely indigenous affair which did not rely on either foreign aid or assistance. The education of girls was carried out on a strictly national basis in the hopes that they would be able to revive and regenerate Hindu society.

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Filed Under: Indian History
Exam Prep: Bank Exams

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