Questions

Q:

A solid ball of metal has a spherical cavity inside it. When the ball is heated the volume of the cavity will

A) increase B) decrease
C) remain unaffected D) have its shape changed
 
Answer & Explanation Answer: A) increase

Explanation:

The metal ball can be considered  to be made up of several layers of thinner ones. On heating each of these layers will increase in radius. As the inner most layer also increases its radius, the volume inside it i.e, the volume of the hollow portion will also increase.

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Filed Under: Physics

118 21685
Q:

Kempegowda Festival was organized in which city ?

A) Hyderabad B) Delhi
C) Mumbai D) Chennai
 
Answer & Explanation Answer: B) Delhi

Explanation:

President Pranab Mukherjee inaugurated the Kempegowda Festival in New Delhi. The festival is organised by the NadaprabhuKempegowda Foundation.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

98 21681
Q:

Consider the following statements :

1. There is no net moment on a body which is in equilibrium.

2. The momentum of a body is always conserved.

3. The kinetic energy of an object is always conserved.

Which of the statements given above is/are correct?

A) 1, 2 and 3 B) 2 and 3 only
C) 1 and 2 only D) 1 only
 
Answer & Explanation Answer: C) 1 and 2 only

Explanation:

There are two conditions that must be met for an object to be in equilibrium. The first condition is that the net force on the object must be zero for the object to be in equilibrium. If net force is zero, then net force along any direction is zero.

Kinetic energy (KE) is the energy of motion, and kinetic energy is not always conserved in a collision

Energy and momentum are always conserved.

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Filed Under: Physics
Exam Prep: Bank Exams

2 21666
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


In mid-2012 I completed my first massive online open course, or MOOC, the kind widely offered by Coursera, EdX, Udacity and so on in partnership with different educational institutions. It was on clinical trials and ethical practices, offered by Johns Hopkins, on Coursera. This was shortly before the MOOC sensation hit India, and when Coursera, which was founded by two Stanford professors, itself was just a few months old. The MOOC bug had bit me. The course I’d completed was mainly designed for health care professionals who would be involved in actual clinical trials, not college students who had no prior knowledge of that area. I decided to enroll in the course because it was the only biology related course open at the time. However, I did see hope in that sometime in the future I’d be able to get a glimpse of what classes are like in the hallowed halls of major educational institutions around the world. By early 2013, Coursera and EdX had partnered with so many educational institutions and expanded their course offerings to include everything from food and nutrition to Greek mythology to business, that I was spoilt for choice. I spent hours going through course catalogues and poring over course descriptions, almost delirious with excitement at the fact that I was actually going to be able to take classes offered by universities I had only dreamt of attending.


The course the author completed on MOOC was related to which subject?

A) Biology B) Nutrition
C) Mythology D) Business
 
Answer & Explanation Answer: A) Biology

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 21649
Q:

What is the oxidation number of sulfur in H2S?

A) 2 B) -2
C) 1 D) -1
 
Answer & Explanation Answer: B) -2

Explanation:

The sum of the oxidation numbers in a compound must equal zero. In the compound hydrogen sulfide, H2S, the two hydrogen atoms have an oxidation number of +1, for a total of +2.

 What_is_the_oxidation_number_of_sulfur_in_H2S1556279499.jpg image

Therefore, the oxidation number of sulfur in the compound is -2, and the sum of the oxidation numbers is 0.

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

31 21643
Q:

A template stores

 

A) Auto text entries B) Graphics, text, styles, macros
C) Customized word command setting D) All of above
 
Answer & Explanation Answer: D) All of above

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

Out of the following remains excavated in indus valley,which one indicates the commercial and economic development

A) Pottery B) Seals
C) Boats D) Houses
 
Answer & Explanation Answer: B) Seals

Explanation:
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Filed Under: Indian History

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Q:

Calculate the pressure (in Pa) if a thrust of 750 N is applied to an area of 5 m2.

 

A) 37.5   B) 150  
C) 75   D) 100
 
Answer & Explanation Answer: B) 150  

Explanation:
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Filed Under: Physics
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