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Q:

Who invented waterproof fabrics ?

A) James Dewar B) Charles Goodyear
C) Mary Moore D) Charles Macintosh
 
Answer & Explanation Answer: D) Charles Macintosh

Explanation:

Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

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Filed Under: Inventions
Exam Prep: Bank Exams
Job Role: Bank Clerk

13 4077
Q:

The philosopphical essence, "The world is but God manifest and God is my own soul" may be traced to the 

A) Vedas B) Upanishads
C) Puranas D) Manusmriti
 
Answer & Explanation Answer: B) Upanishads

Explanation:
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Filed Under: Indian History

3 4076
Q:

The coding or scrambling of data so that humans cannot read them, is known as _____.

A) Compression B) Encryption
C) Ergonomics D) Biometrics
 
Answer & Explanation Answer: B) Encryption

Explanation:

The coding or scrambling of data so that humans cannot read them is known as encryption.

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Filed Under: Programming

9 4074
Q:

Which one of the following is commonly used as an indicator to measure the exact pH?

 

A) Eosin B) Phenolphthalein
C) Universal indicator D) Litmus
 
Answer & Explanation Answer: C) Universal indicator

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

1 4073
Q:

A tetrad is made up of

A) four homologous pairs of chromosomes B) two homologous chromosomes, each consisting of two chromatids
C) four non-homologous chromosomes D) two homologous pairs of chromosomes
 
Answer & Explanation Answer: B) two homologous chromosomes, each consisting of two chromatids

Explanation:

A tetrad is formed from two homologous chromosomes, each consisting of two chromatids in the first stage of meiosis called prophase1.

 

A_tetrad_is_made_up_of1562827273.jpg image

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
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5 4068
Q:

A column defined as UNIQUE can contain Nulls while a column defined as PRIMARY KEY can't contain Nulls

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Because a table can have only one primary key

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Subject: Oracle Certification
Job Role: Database Administration

1 4061
Q:

Learned indian classical vocalists do not like the accompaniment of a harmonium because 

A) tempered scale is used in the harmonium B) diatonic scale is used in the harmonium
C) notes of the harmonium are too shrill D) intensity of the notes of the harmonium is too large
 
Answer & Explanation Answer: A) tempered scale is used in the harmonium

Explanation:
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Filed Under: Physics

7 4060
Q:

Hydroplaning is usually caused by

A) Excessive speed B) Sudden stops
C) Sudden turns D) All of the above
 
Answer & Explanation Answer: A) Excessive speed

Explanation:

Hydroplaning is caused by a combination of standing water on the road, car speed, and under-inflated or worn-out tires.

Hydroplaning_is_usually_caused_by1558074712.jpg image

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Filed Under: General Science
Exam Prep: CAT , Bank Exams , AIEEE
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