Thursday, July 24, 2014

SEO

SEO: Search Engine Optimization
Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a search engine's "natural" or un-paid ("organic") search results.



There are two ways of doing SEO
On-Page SEO- This includes providing good content, good keywords selection. putting keywords on correct places, giving appropriate title to every page etc.
Off-Page SEO - This includes link building, increasing link popularity by submitting in open directories, search engines, link exchange etc.

SEO may target different kinds of search, including image search, local search, video search, academic search,news search and industry-specific vertical search engines.


Search engines perform several activities in order to deliver search results like,
1.Crawling
2.Indexing
3.Processing
4.Calculating Relevancy
5.Retrieving Results

SEO techniques are classified into two broad categories:
1.Techniques that search engines recommend as part of good design referred to as White Hat SEO, and
2.Techniques that search engines do not approve and attempt to minimize the effect of referred to as Black Hat or spamdexing.
1.White Hat SEO:-
An SEO technique is considered white hat if it conforms to the search engines guidelines and involves no deception.
As the search engine guidelines are not written as a series of rules or commandments, this is an important distinction to note.
White hat SEO is not just about following guidelines, but is about ensuring that the content a search engine indexes and
subsequently ranks is the same content a user will see.
 White hat advice is generally summed up as creating content for users, not for search engines,
and then making that content easily accessible to the spiders, rather than attempting to trick the algorithm from its intended purpose.
 White hat SEO is in many ways similar to web development that promotes accessibility, although the two are not identical.


2.Black Hat SEO :-
Black hat SEO attempts to improve rankings in ways that are disapproved of by the search engines, or involve deception.
One black hat technique uses text that is hidden, either as text colored similar to the background, in an invisible div, or positioned off screen.
Another method gives a different page depending on whether the page is being requested by a human visitor or a search engine, a technique known as cloaking.


In optimizing keywords on a web page are:-
Keyword Frequency:
This is calculated as how often does a keyword appear in a site's title or description. You don't want to go overboard with frequency, however, since on some engines if you repeat a word too many times, you'll be penalized for "spamming" or keyword stuffing.
In general though, repeat your keyword in the document as many times as you can get away with, and up to 3-7 times in your META tags.

Keyword Weight:
This refers to the number of keywords appearing on your Web page compared to the total number of words appearing on that same page. Some search engines consider this when determining the rank of your Web site for a particular keyword search.
One technique that often works well is to create some smaller pages, generally just a paragraph long, which emphasize a particular keyword. By keeping the overall number of words to a minimum, you will increase the "weight" of the keyword you are emphasizing.

Keyword Proximity:
This refers to the placement of keywords on a Web page in relation to each other or, in some cases, in relation to other words with a similar meaning as the queried keyword.
For search engines that grade a keyword match by keyword proximity, the connected phrase .home loans. will outrank a citation that mentions .home mortgage loans. assuming that you are searching only for the phrase "home loans".

Keyword Prominence:
A measure of how early or high up on a page the keywords are found. Having keywords in the first heading and in the first paragraph (first 20 words or so) on a page are best.

Keyword Placement:
WHERE your keywords are placed on a page is very important. For example, in most engines, placing the keywords in the Title of the page or in the Heading tags will give it more relevancy. On some engines, placing keywords in the link text, the part that is underlined on the screen in a browser, can add more relevancy to those words.

Best Places to Put Keywords:
Here is a list of places where you should try to use your main keywords.
1.Keywords in the <title> tag(s).
2.Keywords in the <meta name="description">
3.Keywords in the <meta name="keyword">
4. Keywords in <h1> or other headline tags.
5.Keywords in the <a href="http://yourcompany.com">keywords</a> link tags.
6.Keywords in the body copy.
7.Keywords in alt tags.
8.Keywords in <!-- insert comments here> comments tags.
9.Keywords contained in the URL or site address, e.g., http://www.keyword.com/keywordkeyword.htm.


Finding Keywords:

There are many different ways to find keywords for your website. Some good keyword ideas are:
1.Words people would search for to find your product or service.
2.Problems your prospective customers may be trying to solve with your product or service.
3.Keyword tags on competitors websites.
4.Visible page copy on competitors websites.
5.Related search suggestions on top search engines.
6.By using an online tools like: Google Keyword Tool
7.By analyzing your website carefully and finding out proper keywords. This task can be done by expert SEO Copywriters.
8.Pay attention to stemming for your keywords - Particularly to what the root word is and what Google considers to be a match for that word when optimizing pages over time.
9.You can do brainstorming to identify correct keywords for your site.

Wednesday, July 23, 2014

To learn Multiplication tables

Multiplication Tables:-



012345 6

 0 * 1 = 0 
0 * 2 = 0
0 * 3  = 0
0 * 4 = 0
0 * 5 = 0
0 * 6 = 0
0 * 7= 0
0 * 8 = 0
0 * 9 = 0
0 * 10 = 0
0 * 11 = 0
0 * 12 = 0

1 * 1 = 1
1 * 2  = 2
1 * 3  = 3
1 * 4 = 4
1 * 5= 5
1 * 6 = 6
1 * 7 = 7
1 * 8 = 8
1 * 9 = 9
1 * 10 = 10
1 * 11 = 11
1 * 12 = 12
 
2 * 1 = 02
2 * 2 = 04
2 * 3 = 06
2 * 4 = 08
2 * 5 = 10
2 * 6 = 12
2 * 7 = 14
2 * 8 = 16
2 * 9 = 18
2 * 10 = 20
2 * 11 = 22
2 * 12 = 24

3 * 1 = 03
3 * 2 = 06
3 * 3 = 09
3 * 4 = 12
3 * 5 = 15
3 *  6 = 18
3 * 7 = 21
3 * 8 = 24
3 * 9 = 27
3 * 10 = 30
3 * 11 = 33
3 * 12 = 36

4 * 1 = 04
4 * 2 = 08
4 * 3 =  12
4 * 4 = 16
4 * 5 = 20
4 * 6 = 24
4 * 7 = 28
4 *  8 = 32
4 * 9 = 36
4 * 10 = 40
4 * 11 = 44
4 * 12 = 48

5 * 1 = 05
5 * 2 = 10
5 * 3 = 15
5 * 4 = 20
5 * 5 = 25
5 * 6 = 30
5 * 7 = 35
5 * 8 = 40
5 * 9 = 45
5 * 10 = 50
5 * 11 = 55
5 * 12 = 60

6 * 1 = 06
6 * 2 = 12
6 * 3 = 18
6 * 4 = 24
6 * 5 = 30
6 * 6 = 36
6 * 7 = 42
6 * 8 = 48
6* 9 = 54
6 * 10 = 60
6 * 11 = 66
6 * 12 = 72


789101112

7 * 1 = 07
7 * 2 = 14
7 * 3 = 21
7 * 4 = 28
7 * 5 = 35
7 * 6 = 42
7 * 7 = 49
7 * 8 = 56
7* 9 = 63
7 * 10 = 70
7 * 11 = 77
7 * 12 = 84

8 * 1 = 08
8 * 2 = 16
8 * 3 = 24
8 * 4 = 32
8 * 5 = 40
8 * 6 = 48
8  * 7 = 56
8 * 8 = 64
8 * 9 = 72
8 * 10 = 80
8 * 11 = 88
8 * 12 = 96

9 * 1 = 09
9 * 2 = 18
9 * 3 = 27
9 * 4 = 36
9 * 5 = 45
9 * 6 = 54
9 * 7 = 63
9 * 8 = 72
9 * 9 = 81
9 * 10 = 90
9 * 11 = 99
9 * 12 = 108

10 * 1 = 10
10 * 2 = 20
10 * 3 = 30
10 * 4 = 40
10 * 5 = 50
10 * 6 = 60
10 * 7 = 70
10 * 8 = 80
10 * 9 = 90
10 * 10 = 100
10 * 11 = 110
10 * 12 = 120

11 * 1 = 11
11 * 2 = 22
11 * 3 = 33
11 * 4 = 44
11 * 5 = 55
11 * 6 = 66
11 * 7 = 77
11 * 8 = 88
11 * 9 = 99
11 * 10 = 110
11 * 11 = 121
11 * 12 = 132

12 * 1 = 12
12 * 2 = 24
12 * 3 = 36
12 * 4 = 48
12 * 5 = 60
12 * 6 = 72
12 * 7 = 84
12 * 8 = 96
12 * 9 = 108
12 * 10 = 120
12 * 11 = 132
12 * 12 = 144
  where,
* means multiplication(to multiply). 
To write table of  9 is very simple:-
First write 0 to 9
0
1
2
3
4
5
6
7
8
9
then next from downwards that is from 9 write, 0 to 9 numbers in front of them.
09
18
27
36
45
54
63
72
81
90

Java

Java Programming Language:


 Java is a computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible. 


It is intended to let application developers "write once, run anywhere" (WORA), meaning that code that runs on one platform does not need to be recompiled to run on another. 

Java applications are typically compiled to byte-code (class file) that can run on any Java virtual machine (JVM) regardless of computer architecture. Java is, as of 2014, one of the most popular programming languages in use, particularly for client-server web applications, with a reported 9 million developers.




Figure :-Java Logo 


Java is:


Architectural-neutral: 
Java compiler generates an architecture-neutral object file format which makes the compiled code to be executable on many processors, with the presence of Java run-time system.

Distributed: 
Java is designed for the distributed environment of the internet.

Dynamic: 
Java is considered to be more dynamic than C or C++ since it is designed to adapt to an evolving environment. Java programs can carry extensive amount of run-time information that can be used to verify and resolve accesses to objects on run-time.

High Performance: 
With the use of Just-In-Time compilers, Java enables high performance.

Interpreted: 
Java byte code is translated on the fly to native machine instructions and is not stored anywhere. The development process is more rapid and analytical since the linking is an incremental and light weight process.

Multi-threaded: 
With Java's multi-threaded feature it is possible to write programs that can do many tasks simultaneously. This design feature allows developers to construct smoothly running interactive applications.

Object Oriented:
In Java, everything is an Object. Java can be easily extended since it is based on the Object model.

Platform independent: 
Unlike many other programming languages including C and C++, when Java is compiled, it is not compiled into platform specific machine, rather into platform independent byte code. This byte code is distributed over the web and interpreted by virtual Machine (JVM) on whichever platform it is being run.
 

Portable:
Being architectural-neutral and having no implementation dependent aspects of the specification makes Java portable. Compiler in Java is written in ANSI C with a clean portability boundary which is a PO SIX subset.

Robust:
Java makes an effort to eliminate error prone situations by emphasizing mainly on compile time error checking and run-time checking.

Secure:
 With Java's secure feature it enables to develop virus-free, tamper-free systems. Authentication techniques are based on public-key encryption.

Simple: 
Java is designed to be easy to learn. If you understand the basic concept of OOP Java would be easy to master.

Tuesday, July 22, 2014

PHP

PHP

  1. PHP is a recursive acronym for "Hypertext Preprocessor".
  2. PHP is a widely-used, open source scripting language.
  3. PHP scripts are executed on the server.
  4. PHP costs nothing, it is free to download and use.
  5. PHP files can contain text, HTML, CSS, JavaScript, and PHP code.
  6. PHP code are executed on the server, and the result is returned to the browser as plain HTML.
  7. PHP files have extension ".php".
  8. PHP can generate dynamic page content.
  9. PHP can create, open, read, write, delete, and close files on the server.
  10. PHP can collect form data.
  11. PHP can send and receive cookies.
  12. PHP can add, delete, modify data in your database.
  13. PHP can restrict users to access some pages on your website.
  14. PHP can encrypt data.
  15. PHP runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.).
  16. PHP is compatible with almost all servers used today (Apache, IIS, etc.).
  17. PHP supports a wide range of databases.
  18. PHP is easy to learn and runs efficiently on the server side.
  19. With PHP you are not limited to output HTML. You can output images, PDF files, and even Flash movies.
  20. You can also output any text, such as XHTML and XML.
  21. In PHP, all user-defined functions, classes, and keywords (e.g. if, else, while, echo, etc.) are NOT case-sensitive.However; in PHP, all variables are case-sensitive.
  22. PHP is a Loosely Typed Language.PHP automatically converts the variable to the correct data type, depending on its value.In other languages such as C, C++, and Java, the programmer must declare the name and type of the variable before using it.


PHP Variables:-

As with algebra, PHP variables can be used to hold values (x=5) or expressions (z=x+y).

A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume).

Rules for PHP variables:
  1. A variable starts with the $ sign, followed by the name of the variable
  2. A variable name must start with a letter or the underscore character
  3. A variable name cannot start with a number
  4. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
  5. Variable names are case sensitive ($y and $Y are two different variables)



PHP Variables Scope:-

In PHP, variables can be declared anywhere in the script.

The scope of a variable is the part of the script where the variable can be referenced/used.

PHP has three different variable scopes:
  1. local
  2. global
  3. static

PHP Data Types:-
PHP Integers:

An integer is a number without decimals.

Rules for integers:

  1. An integer must have at least one digit (0-9)
  2. An integer cannot contain comma or blanks
  3. An integer must not have a decimal point
  4. An integer can be either positive or negative
  5. Integers can be specified in three formats: decimal (10-based), hexadecimal (16-based - prefixed with 0x) or octal (8-based - prefixed with 0)

Example
<?php
$x = 5985;
var_dump($x);
echo "<br>";
$x = -345; // negative number
var_dump($x);
echo "<br>";
$x = 0x8C; // hexadecimal number
var_dump($x);
echo "<br>";
$x = 047; // octal number
var_dump($x);
?>

Basic PHP Syntax:-
A PHP script can be placed anywhere in the document.
A PHP script starts with <?php and ends with ?>

Example:

<!DOCTYPE html>
<html>
<body>

<h1>My first PHP page</h1>

<?php
echo "Hello World!";
?>

</body>
</html>

PHP statements are terminated by semicolon (;).
The closing tag of a block of PHP code also automatically implies a semicolon.
So you do not have to have a semicolon terminating the last line of a PHP block.

Mac OS

The Mac OS is designed to run on Machintosh computers .
It is a very powerful and easy-to-use operating system .It is the world most advanced operating system and the newest version of OS X is free with strongest security.
The latest version of the Machintosh operating system is OS X. This operating system provides a number of unique features:

  • Aqua  is an intuitive user interface.
  • Dock provides a flexible tool for organizing files.
  • Sherlock locates information on the Web as well as on the user's computer system.

                                                      Figure :- OS X

OS X:-
OS X is the line of graphical operating systems developed, marketed, and sold by Apple Inc.
which succeeded the original Mac OS, which had been Apple's primary operating system since 1984.

Unlike the earlier Macintosh operating system, OS X is a Unix-based operating system built on
technology developed at NeXT from the second half of the 1980s until early 1997,
when Apple purchased the company.

Latest version of OS X is OS X Yosemite  (version 10.10) is the upcoming eleventh major release of OS X, Apple Inc.'s desktop and server operating system for Macintosh computers. OS X Yosemite was announced and released to developers and beta testers on June 2, 2014, at WWDC 2014. Yosemite will be released to consumers in late 2014.Following the new naming scheme introduced with OS X Mavericks, Yosemite is named after the national park in California.
System requirements:-No changes in system requirements have been made for Yosemite, meaning that all Macintosh products capable of running OS X Mavericks will be supported by Yosemite; as with Mavericks, 2 GB of RAM, 8 GB of available storage, and OS X 10.6.8 (Snow Leopard) or later are required.









Device Drivers

What are Device drivers? How are device drivers updated?
 Answer:-

Device drivers  are specialized programs that allow device such as mouse, printer, scanner or keyboard to communicate with the rest of the computer system.

Every device, such as a mouse or printer , that is connected to a computer system, has a special program associated with it. This program , called a device driver or simply a driver, works with the operating system to allow communication between the device and the rest of the computer system.
Each time the computer system is started, the operating system loads all the device drivers into memory.

Whenever a new device is added to a computer system, a new device driver must be installed before the device can be used .
Windows supplies hundreds of different device drivers with its system software. If a particular device driver is not included , the product's manufacturer will supply one.
Many time these drivers are available directly form manufacturer's website.

You probably never think abut the drivers in your computer.
However when your computer behaves unpredictably , you find updating your drivers solves your problems.
Windows makes it easy to update the drivers on your computer using Windows Update.

Sunday, July 20, 2014

Process States and Transitions

List containing complete set of process states:
1. The process is executing in user mode.
2. The process is executing in kernel mode.
3. The process is not executing but is ready to run as soon as the kernel schedules it.
4. The process is sleeping and resides in main memory .
5. The process is ready to run , but swapper (process 0) must swap the process into main memory before the kernel can schedule it to execute.
6. The process is sleeping, and the swapper has swapped the process to secondary storage to make room for other processes in main memory.
7. The process is returning from the kernel to user mode ,but the kernel preemprts it and does a context switch to schedule another process.The distinction between this state and state 3 (ready to run) will be brought out shortly.
8. The process is newly created and is in a transition state ; the process exists, but it is not ready to run , nor is it sleeping . This state  is the start for all processes except process 0.
9. The process executed the exit system call and is in the zombie state. The process no longer exists , but it leaves a record containing an exit code and some timing statistics for its parent process to collect .The zombie state is the final state of a process.

Buffer

Definition :-
The kernel could read and write directly to and from the disk for all file system accesses,but system response time and throughput would be poor because of the slow disk transfer rate . The kernel therefore attempts to minimize frequency of disk access by keeping a pool  of internal data buffers,called the buffer cache which contains the data in recently used disk blocks.

A buffer contains two parts:
a memory array that contains data from the disk and
a buffer header that identifies the buffer.

The status of buffer is a combination of the following conditions:
1. The buffer is  currently locked.
2. The buffer contains valid data 
3. The kernel must write the buffer contents to disk before reassigning the buffer this condition is known as "delayed-write"
4. The kernel is currently reading or writing the contents of the buffer to disk.
5. A process is currently waiting for the buffer to become free

Structure of the buffer pool:
The kernel caches data in the buffer pool according to a least recently used algorithm .
The kernel maintains a free list of buffers that preserves the last recently used order.
The free list is a doubly linked circular list of buffers with a dummy buffer header that marks its beginning and end .
Kernel organizes the buffer into separate queues, hashed as a function of the device and block number.

Five typical scenarios the kernel may follow in getblk to allocate a buffer for a disk block
1. The kernel finds the block on its hash queue, and its buffer is free.
2. The kernel cannot find the block on the hash queue,so it allocates a buffer from the free list .
3. The kernel cannot find the block on the hash queue and in attempting to allocate a buffer from the free list ,finds a buffer on the free list that has been marked "delayed write." The kernel must write the "delayed write" buffer to disk and allocate another buffer.
4. The kernel cannot find the block on the hash queue , and the free list of buffers is empty.
5. The kernel finds the block on the hash queue , but its buffer is currently busy.


 

Monday, July 14, 2014

Solve and Test Arithmetic questions

Solve and Test Arithmetic questions




Q 1. The  base of a  triangular field is three times its altitude.If the cost of cultivating the field at Rs.24 per hectare be Rs.324, find its base and height.

Ans. Height = 300m , base= 900m



Q 2. The average monthly expenditure of a family was Rs.4,050 during first 3 months, Rs. 4,260 during next 4 month and Rs.4,346 during last 5 month of the year. If the total saving during the year be Rs.8,720, find the average monthly income.

Ans. Rs. 4,970



Q 3. The student in three classes are in the ratios 2:3:5. If 20 students are increased in each class ,the ratios changes to 4:5:7. What is the total number of student before the increase?

Ans. 100



Q 4. A papaya tree was planted 2 year ago. It increase at the rate of 20% every year . If  at present , the height of the tree is 540 cm, What was it when the tree was planted?

Ans. 375 cm



Q 5. The sum of the ages of a father and son is 45 year. Five year ago , the product of their ages was 4 times the  father's age at that time.Find the present ages of the father and son.

Ans. Father's age i.s 36 year and son 's age is 9 years



Q 6. A man sold an article for Rs.161, gaining 1/6th of his outlay. Find the cost price of the article.

Ans. Rs. 138



Q 7. Divide Rs.560 among A,Band C so that A may get half as much as C and B may get half as much as C.

Ans. A's shave =Rs. 140, B's shave =Rs. 140, C 's shave= Rs.280



Q 8. If in a long division sum ,the dividend is 380606 and the successive remainders from the first to the last are 434,125 and 413,find the divisor.

Ans. 843



Q 9. In a hostel there were some students.Average expenditure on their meal was Rs.60.10 more students joined and the expenses increased by Rs.350 ,but average reduced by Rs. 5 .How many students were in the hostel originally?

Ans. 40



Q 10. A grocer purchased 80 kg of rice at RS .13.50 per kg and mixed it with 120 kg available at Rs. 16 per kg.At what rate per kg should he sell the mixture to have a gain of 20 per cent?

Ans. Rs 18 per kg


Saturday, July 12, 2014

Solved General knowledge questions and answers

General Knowledge Questions :-





1) What should be the minimum interval between two successive blood donations?
A) 6 weeks
B) 3 months
C) 6 months
D) 8 months

Ans::- B) 3 months



2) Food is mainly digested in-
A) Liver
B) Large intestine
C) Small intestine
D) Mouth
 

Ans::- C) Small intestine



3) The large cell in the human body is -
A) Nerve Cell
B) Muscle Cell
C) Liver Cell
D) Kidney Cell

Ans::- A) Nerve Cell




4) Which of the following is a flightless bird?
A) Emu
B) Hen
C) Swan
D) None of these

Ans::- A) Emu



5) Meningitis is a disease which affects the -
A) Kidneys
B) Liver 
C) Heart
D) Brain

Ans::- D) Brain



6) Which of the following is a vector quantity?
A) Force
B) Momentum
C) Energy
D) Temperature

Ans ::- A) Force



7) The three famous Buddhist sites Ratnagiri ,Lalitgiri and Udaigiri  are located in which of the following States?
A) Bihar
B) Maharashtra
C) U.P.
D) Orissa

Ans:: - Orissa



8) Who among the following earned the title of a 'Liberator'?
A) Chandragupta Vikramaditya 
B) Ashoka
C) Chandragupta Maurya
D) Alexander

Ans::- C) Chandragupta Maurya



9) The strategy of  'Divide and Rule' was adopted by whom?
A) Lord Curzon
B) lord  Wellesley 
C) Lord  Minto 
D) Lord  Canning

Ans:: - C) Lord Minto



10) Delhi became the Capital of India in -
A) 1910
B) 1911
C) 1916
D) 1923


Ans ::- B) 1911



11) The first President of independent India was -
A) Dr. Rajendra Prasad
B) M.K.Gandhi
C) Dr. S.Radhakrishnan
D) J.L.Nehru

Ans::- A) Dr. Rajendra Prasad



12) Who was the first European to translate the Bhagwad Gita into English?

A) William Jones
B) Charles Wilkins
C) James Prinsep
D) Sir Alexander Cunningham

Ans:: -B) Charles Wilkins



13. The  population of which of the following is maximum on  the earth
A) Reptiles
B) Fishes
C) Birds
D) Beetles

Ans. B) Fishes




14. Which of the following is the largest living mammal?
A) Giraffe
B) White elephant
C) Rhinoceros
D) Blue Whale

Ans. D) Blue Whale



15. Which first is given by a herb?
A) Mango
B) Banana
C) Apple
D) Jack-  fruit

Ans. D) Jack- fruit



16. Which of  the following is hereditary?
A) Dysentery
B) Tuberculosis
C) Haemophilia
D) Cancer


Ans. C) Haemophilia



17. Which of the following is knows as the jain Temple City?
A) Gimar
B) Rajagriha
C) Varanasi
D) Ilahabad


Ans. A) Gimar



18. Who was the first King  to conquer Malwa,Gujarat and Maharashtra?
A) Skandagupta
B) Samudragupta
C) Chandragupta Maurya
D) Harshavardhan 

Ans. C) Chandragupta Maurya




19. The slogan 'Inquilab Zindabhad' was raised by whom?
A) Lokmanya Tilak
B) Veer Savarkar
C) Chandrashekar Azad
D) Bhagat Singh

Ans. D) Bhagat Singh




20. The Muslim League started demanding a separate nation for the Muslims from which year?
A) 1919
B) 1925
C) 1929
D) 1940


Ans. D) 1940



21. When did the British Parliament pass the Indian Independence Bill  ?
A) 20th February, 1947
B) 24th March, 1947
C) 1st July, 1947
D) 14th August,1947


Ans. C) 1st July,1947



22. Who among the following has the final power to maintain order within the House of People?
A) Marshal of the People
B) Prime Minister
C) Speaker
D) Chief of Security Staff


Ans. C) Speaker



23. Which is laughing gas?
a) Carbon dioxide
b) Sulphur dioxide
c) Carbon monoxide
d) Nitrous  oxide

Ans. d) Nitrous  oxide




24. Detergents used for cleaning clothes and utensils contains-
a) Nitrates
b) Bicarbonates
c) Sulphonates
d) Bismutnates

Ans. c) Sulphonates




25. Floppy disc in a computer system is-
a) Compiler
b) Core memory
c) Software
d) Device for storage and retrieving data

Ans. d) Device for storage and retrieving data




26. The tooth with there roots is-
a) Molar
b) Pre- Molar
c) Incisor
d) Canine

Ans. a) Molar




27. Bamboo is a-
a) Grass
b) Herb
c) Shrub
d) Tree


Ans. a) Grass



28. Which of the following cannot be controlled by vaccination?
a) Small pox
b) Diabetes
c) Polio
d) Whooping cough

Ans. b) Diabetes




29. Which of the following terms is used for several individuals of a species living together in a locality?
a) Biosphere
b) Ecosystem
c) Bio- community
d) Population

Ans. c) Bio- community




30. Raman effect is associated with characteristics of-a) Heat
b) Light
c) Electricity
d) Magnetism

Ans. b) Light



31. Which of the following is known as the queen of  spices?
a) Coriander
b) Cardamom
c) Fenugreek
d) Chillies

Ans. b) Cardamom




32. The Peacock throne was made for -
a) Jahangir
b) Akbar
c) Shahjehan
d) Aurangzeb

Ans. c) Shahjehan




33. Which of the following was built  by Akbar?
a) Agra fort
b) Fort of Daulatabad
c) Red fort
d) Fort of Ahmednagar

Ans. a) Agra fort




34. Ramayan refers to-
a) Satyuga
b) Tretayuga
c) Dwaparyuga
d) Kalyuga

Ans. b) Tretayuga




35. Who is regarded as the greatest law giver of  ancient India?
a) Kautilya
b) Manu
c) Panini
d) Patanjali

Ans. b) Manu




36. When did the Indian National Congress ask for the 'Dominion Status'?
a) 1908
b) 1929
c) 1942
d) 1947

Ans. a) 1908




37. The first woman's university in India was founded by-
a) Gandhiji
b) J.K.Kumarappa
c) Dhondo Keshave Karve
d) Rani Ahilya Devi

Ans. c) Dhondo Keshave Karve



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