Questions

Q:

The force exerted on an object is 200 N and its mass is 100 kg. Find the acceleration of the object.

A) 2 m/s B) 2 m
C) 2 m/sq.s D) 2 s
 
Answer & Explanation Answer: C) 2 m/sq.s

Explanation:
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Filed Under: Physics
Exam Prep: CAT , Bank Exams , AIEEE

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

 

The tail is wagging the dog

 

 

A) A situation where a small good thing makes everyone happy B) The less important or subsidiary factor, person, or thing dominates a situation  
C) A person who is always happy to meet you D) Even smaller tasks become important if the whole project is to succeed
 
Answer & Explanation Answer: B) The less important or subsidiary factor, person, or thing dominates a situation  

Explanation:
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Filed Under: English
Exam Prep: Bank Exams , CAT , GRE , TOEFL

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Q:

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


Modern civilization is completely dependent on energy, which has therefore to be abundant and also economical. About 85% of the world's energy is supplied by oil, coal and natural gas while nuclear, hydro, wind and solar power and biomass supply the rest. Coal, nuclear and hydro are used primarily to generate electricity while natural gas is widely used for heating. Biomass is used both for heating and cooking. The wind and solar power is the future's hope as they are sustainable energy sources. Oil powers almost all machines that move and that makes oil uniquely versatile. Oil powered airplanes carry 500 people across the widest oceans at nearly the speed of sound. Oil powered machines produce and transport food. Oil powered machines are ubiquitous. Clearly, we live in the age of oil but it is drawing to a close. According to data available if oil production remains constant until it's gone, there is enough to last 42 years. Oil wells will produce less as they become depleted, which will make it impossible to keep production constant. Similarly natural gas and coal will last another 61 years and 133 years respectively. Naturally, as they become scarce, they become expensive, leading to a worldwide energy crisis. If we are to survive on this planet, we have to make a transition to sustainable energy sources. The transition may be willy-nilly or planned - the choice is ours.

The dawning era of limited and expensive energy will be very difficult for everyone on earth but will be even more difficult if it is not anticipated. It is of utmost importance that the public and policymakers understand the global energy crisis and act in tandem to ensure that the species 'homo sapiens' does not become extinct.

The theme of the passage is

A) Changing Lives B) Looming Energy Crisis
C) Energy Resources D) Power in Today's world
 
Answer & Explanation Answer: B) Looming Energy Crisis

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Point out the error, ifany, in the followingb code?

typedef struct

{

     int data;

     NODEPTR link;

} *NODEPTR;

 

Answer

A typedef defines a new name for a type, and in simpler cases like the one shown below you can define a new structure type and a typedef for it at the same time.


typedef struct


{


    char name[20];


    int age;


} emp;


However, in the structure defined in this question, there is an error because a typedef declaration cannot be used until it is defined. In the given code fragment the typedef declaration is not yet defined at he point where the link field is declared.

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Subject: Programming

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Q:

Explain Data Control Language

Answer

Data Control Language (DCL):-statements to take care of the security and authorization.


Examples:



    1. GRANT

    2. REVOKE

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Q:

Which one of the following elements does not form solid hydrogen carbonate?

A) Sodium B) Potassium
C) Caesium D) Lithium
 
Answer & Explanation Answer: D) Lithium

Explanation:

Potassium bicarbonate (also known as potassium hydrogen carbonate or potassium acid carbonate) is the inorganic compound with the chemical formula KHCO3. It is a white solid

Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder.

LiHCO3 is found in solution form while rest alkali metals hydrogen carbonates are solid due to the anomalous properties of Li and its diagonal relationship with the Mg.

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

In order to make an electromagnet you need a

A) Dry cell batteries B) Thin coated copper wire
C) Iron nail D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

To create a simple electromagnet, you'll need a source of electricity, a conductor, and metal. Wrap insulated copper wire tightly around an iron screw or nail before connecting the wire to a battery, and watch as your new electromagnet picks up small metal objects.

 

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

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Q:

The world's Largest Shopping Centre is __________

Answer

The Dubai Mall, located in downtown Dubai, UAE, consists of four levels with a floor area of 548,127  (5.9 million ) and has 1,200 retail outlets and over 160 food and beverage outlets. Construction began in 2004, with the mall opening its doors on 4 November 2008. 

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