Questions

Q:

For accurate scientific work, temperatures are often measured by

A) mercury thermometers B) alcohol thermometers
C) platinum resistance thermometers D) thermoelectric thermometers
 
Answer & Explanation Answer: C) platinum resistance thermometers

Explanation:

The resistance of metallic conductors e.g, platinum, increases with rise of  temperature . The increase in temperature results in a decrease of current which can be recorded in a galvanometer if the conductor is included in an electrical circuit. Thus the temperature can be known; platinum resistance thermometer is used generally for accurate scientific work. When two dissimilar metals are joined at the ends, and these ends are subjected to a difference of temperature, a current flows through the metals. Greater the difference of temperature , greater the current. So the curent strength can form the basis for measuring the difference in temperature. And when one of these temperatures is known, we can calculate the other.

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Filed Under: Physics

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Q:

Which one of the following is NOT an example of economic overheads

A) Schools B) Sanitary Facilities
C) Roads and Rrailways D) Coal Mines
 
Answer & Explanation Answer: D) Coal Mines

Explanation:
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Filed Under: Indian Economy

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Q:

How effective is online advertising? Which type of products should be advertised online?

Answer

Today, internet plays a pivotal role in both B2B and B2C space. Internet advertising helps the company to reach a large target audience in a small budget and also is easily measurable. It’s highly effective in creating and increasing brand awareness on a whole for any product/service.


The following are the various ways to measure the effectiveness of online advertising:



  •      Downloading of brochures/contact forms

  •      Completing a transaction on Shopping cart section of the website

  •      Subscription to newsletter/webinars

  •      Online enquiry about the product/service through company’s email address

  •      Google analytics

  •      Web analytics  

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Q:

Who Discovered The Nucleus of a Cell?

A) Otto Hahn B) John Dalton
C) Robert Brown D) Marie Curie
 
Answer & Explanation Answer: C) Robert Brown

Explanation:

Robert Brown, Scottish botanist, Discovered The Nucleus of a Cell in 1831, London. When Brown was studying orchids under microscope when he observed an opaque area, which he called the "Areola" or "Nucleus", in the cells of the flower's outer layer.

The nucleus was also described by Franz Bauer in 1804 but in detail Robert Brown made it in 1831.

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Filed Under: Inventions
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank PO

11 4174
Q:

Rabindranath Tagore was awarded Noble Prize for his literary work named

A) Geetanjali B) Rajtarangini
C) Chokher Bali D) None of these
 
Answer & Explanation Answer: A) Geetanjali

Explanation:
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Filed Under: Books and Authors

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Q:

Nucleus of Hydrogen atom consists of

A) 2 protons only B) 2 neutrons only
C) 1 proton only D) 1 electron only
 
Answer & Explanation Answer: C) 1 proton only

Explanation:

The nucleus of hydrogen consists of only a single proton.

Its parts are a single negatively-charged electron that circles a single positively-charged nucleus of the hydrogen atom.

The electron is bound to the nucleus by the Coulomb force.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 4170
Q:

Drowsiness affects your senses especially your

A) vision B) hear
C) smell D) taste
 
Answer & Explanation Answer: A) vision

Explanation:

Drowsiness is the state of feeling sleepyness and tired in the day time. It affects our senses especially the sense of vision.

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

1 4168
Q:

4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat-weavers in 8 days?

A) 4 B) 8
C) 12 D) 16
 
Answer & Explanation Answer: D) 16

Explanation:

Let the required number of bottles be x.

 

 

 

More weavers, More mats (Direct Proportion)

 

 

 

More days, More mats (Direct Proportion)

 

 

 

Wavers   4:8Days       4:8  :: 4:x

 

 

 

 4 x 4 x x = 8 x 8 x 4

 

 

 

=> x= 8*8*44*4

 

 

 

=>  x = 16.

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