Questions

Q:

Which of the following is a secondary storage device?

A) ALU B) Disc
C) Projector D) All of the above
 
Answer & Explanation Answer: B) Disc

Explanation:
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Q:

Which sources produce alternating current (AC)?

A) Solar power plants B) Hydro-electric generators
C) Batteries D) All of the above
 
Answer & Explanation Answer: B) Hydro-electric generators

Explanation:

Alternating Current (AC) is the current in which flow of current is altered periodically whereas in DC current i.e, direct current the flow of current is only in one direction.

Some of the sources of AC current are :

1. Hydro-electric generators

2. Thermal power generators

3. Nuclear  power generators...

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

What would be the output of the following program?

main()

{

   struct emp

   {

        char *n;

        int age;

   };

   struct emp e1 = { "Dravid", 23};

   struct emp e2 = e1;

   strupr (e2.n);

   printf ("\n%s",e1.n);

}

Answer

DRAVID


When a structure is assigned, passed, or returned, the copying is done monolithically. This means that the copies of any pointer fields will point to the same place as the original. In other words, anything pointed to is not copied. Hence, on changing the name through e2.n it automatically changed e1.n

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Subject: Programming

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Q:

Why should you use the Ad Preview and Diagnosis tool to check if your ads are live and running on Google?

Answer

By searching for keywords that trigger your ad, you can rack up impressions without clicks, which may lower your Click-Through Rate, which may prevent your ad from appearing as often as it is eligible.

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Q:

What is Proxy ARP?

Answer

It is using a router to answer ARP requests. This will be done when the originating host believes that a destination is local, when in fact is lies beyond router.

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Subject: Networking
Job Role: Database Administration

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Q:

Appetite is triggered by

A) stomach enzymes B) pancreatic enzymes
C) physiological drive D) environmental cues such as the smell or taste of food
 
Answer & Explanation Answer: D) environmental cues such as the smell or taste of food

Explanation:

Appetite is the desire to eat food, sometimes due to hunger. Appetite is triggered by environmental cues such as the smell or taste of food. Appealing foods can stimulate appetite even when hunger is absent.

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

Order of basicity of amines

Answer

The order of basicity for primary, secondary and tertiary amines are:


Secondary > Primary > Tertiary > NH3


 


* Amines are basic in nature as they have lone pair of electrons on nitrogen. Therefore, they have a strong tendency to donate this lone pair of electrons to electron acceptors.


* The stability of conjugate acids formed is dependent on the extent of H-bonding,and greater the number of H-atoms on N more stable is the conjugate acid.


* The conjugate acid of primary amine is the most stable with greater number (3) of H-bonds than > Secondary > tertiary. But primary amines are less basic than secondary as the electron density on the N atom is less and lone pair of electrons are not readily available for protonation.


* The two opposing factors i.e. the stability of conjugate acids formed and ease of availability of electrons for Protonation, balance each other in case of secondary amines and it is most basic.

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams
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Q:

Which is the heaviest metal among the following?

A) Gold B) Silver
C) Iron D) Copper
 
Answer & Explanation Answer: A) Gold

Explanation:
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Filed Under: Chemistry

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