Questions

Q:

A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity  water rises in the tube. The height of water rise in the tube can be increased by 

A) decreasing the radius of the capillary tube B) increasing the radius of the capillary tube
C) increasing the height of water in the vessel D) None of these
 
Answer & Explanation Answer: A) decreasing the radius of the capillary tube

Explanation:

The water rise in a capillary tube dipped in water is such that the weight of water in the tube above the surface of water in the vessel is equal to (balances) the upward force due to surface tension. So it is clear that if the the bore (radius) to the tube is decreased, the height of the water column in it must be greater.  So, (a) is correct.

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Filed Under: Physics

4 3801
Q:

Ecology deals with the study of

A) Environment B) Birds
C) Organisms and their Environment D) Living beings
 
Answer & Explanation Answer: C) Organisms and their Environment

Explanation:

ecology_deals_with_the_study_of1553078201.png image

Ecology is the branch of science which deals with the study of Ecosystem (relation between the Organisms and their Environment.)

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Filed Under: General Science
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank Clerk , Analyst , Bank PO

16 3800
Q:

Why are yeast cells frequently used as hosts for cloning?

A) they are eukaryotic cells B) they do not have plasmids
C) only yeast cells allow the gene to be cloned D) they easily form colonies
 
Answer & Explanation Answer: A) they are eukaryotic cells

Explanation:

If you were to produce a protein in bacterial cloning systems, you would not get the same post transcriptional and post translational modifications because the prokaryotic and eukaryotic systems work differently on the modifications.

Thus human recombinant protein genes are usually cloned in yeast cells. Also since they have a short generation time, they can be easily culture.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk

4 3800
Q:

What is the perfect page size when designing an operating system ?

Answer

The perfect paging size varies from system to system, so there is no single best when it reaches to page size. There are several factors to consider in order to come up with a fitting page size, such as paging time, page table, and its effect on the total performance of the operating system.

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3 3797
Q:

The command to eliminate a table from a database is

A) REMOVE TABLE CUSTOMER; B) UPDATE TABLE CUSTOMER;
C) DELETE TABLE CUSTOMER; D) DROP TABLE CUSTOMER;
 
Answer & Explanation Answer: D) DROP TABLE CUSTOMER;

Explanation:

The SQL DROP TABLE statement is used to remove a table definition and all data, indexes,...

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4 3796
Q:

Select the antonym of

 

content

 

A) ease B) depressed
C) gratified D) smug
 
Answer & Explanation Answer: B) depressed

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 3792
Q:

When did Economic Community of Central African States came into existence

A) 1984 B) 1983
C) 1982 D) 1981
 
Answer & Explanation Answer: B) 1983

Explanation:
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Filed Under: World Organisations

5 3790
Q:

Name an animal that has eyes yet sightless?

Answer

Bats

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33 3788