Questions

Q:

Lightning is produced when 

A) Similar charges of electricity rush towards each other and then get repelled B) clouds strike against impurities in air and the friction burns up these impurities
C) strong opposite charges in different clouds break down the resistance offered by the intervening air D) water vapour produces electricity in the clouds
 
Answer & Explanation Answer: C) strong opposite charges in different clouds break down the resistance offered by the intervening air

Explanation:

When the resistance of the air between breaks down the current flows from the positive cloud to the negative cloud in a flash which we call lightning . The difference of potential involves is very high.

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Filed Under: Physics

5 3350
Q:

Which shows a correctly paired DNA molecule?

A) AT B) TC
C) AC D) TG
 
Answer & Explanation Answer: A) AT

Explanation:

The nucleotides that are present in DNA molecule are 4. They are Thymine (T), Guanine (G), Adenine (A) and Cytosine (C).

 

Here in this Adenine pairs with Thymine (A - T) and Cytosine pairs with Guanine (C - G).

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Filed Under: Biology
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2 3350
Q:

At what temperature do pathogenic bacteria grow best in food?

A) 5 to 15 degrees Celsius B) 15 to 25 degrees Celsius
C) 20 to 45 degrees Celsius D) 40 to 65 degrees Celsius
 
Answer & Explanation Answer: C) 20 to 45 degrees Celsius

Explanation:

The Bacteria that causes Food Borne illness are called Food Borne Pathogens. Most of the pathogens are mesophilic in nature, optimum temperature may be around 20-45 degree celsius. This range of temperatures is often called the "Danger Zone." Dry foods do not support the growth of bacteria.

 

In order to kill pathogenic bacteria you need temperatures above 74ºC. Temperature is the easiest factor to control in order to prevent bacterial growth.

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Filed Under: Biology
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6 3349
Q:

The process of bones increasing in width is known as

A) appositional growth B) closing of the epiphyseal plate
C) concentric growth D) long bones reaching adult length and width
 
Answer & Explanation Answer: A) appositional growth

Explanation:
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Filed Under: Biology
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Q:

The International Atomic Energy Agency was created under the aegis of the UN in

A) 1945 B) 1946
C) 1955 D) 1957
 
Answer & Explanation Answer: D) 1957

Explanation:
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Filed Under: World Organisations

1 3348
Q:

Explain a.) Quality Assurance b.) Quality Control c.) Test Case d.) Test Condition e.) Test Script f.) Test Data g.) Test Bed

Answer

a.) Quality Assurance


Quality assurance is an activity that establishes and evaluates the processes that produce products. Quality assurance would measure processes to identify weaknesses and then correct them to continually improve the process: Eg. Code review.


b.) Quality Control


Quality control is a process in which the product's quality is compared with standards and corrective actions taken if required. Quality control activities focus on identifying defects in the actual products produced. Eg. Testing.


c.) Test Case


A test case is a unit level document describing the inputs, steps of execution and the expected result of each test condition for every requirement from the BRD. Testers determine whether the application is working correctly or not based on the test case that is being executed. A test case is marked as "Pass" if the application works as expected and is marked as "Fail" if otherwise. Test cases also aide in generating test status metrics.


d.) Test Condition


Test condition is the condition on which the test execution evaluates to pass or fail. Eg of a test condition: Set Password field should accept a mix of Alphanumeric and Special characters on mandatory basis and throw error message otherwise.


e.) Test Script


Test script is the set of instructions performed on the application to verify its functions.


f.) Test Data


Test data is the input data used to test a particular functionality. Eg: Username and password to test a login screen.


g.) Test Bed


Test bed is the environment on which the testing is done and includes the software and hardware set up that is required for testing the application.

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Subject: Software Testing

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Q:

Who among the following was the 1st Speaker of the Lok Sabha?

A) M.A Ayyanga B) N Sanjiva Reddy
C) Ganesh Vasudev Mavalankar D) Sardar Hukam Sing
 
Answer & Explanation Answer: C) Ganesh Vasudev Mavalankar

Explanation:

Ganesh Vasudev Mavalankar popularly known as Dadasaheb was an independence activist, the President of the Central Legislative Assembly, then Speaker of the Constituent Assembly of India, and later the first Speaker of the Lok Sabha, the lower house of the Parliament of India.

first_Speaker_of_the_Lok_Sabha1543835822.jpg image

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Filed Under: Indian Politics
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3 3348
Q:

Tertiary structure is NOT directly dependent on

A) hydrogen bonds B) ionic bonds
C) peptide bonds D) hydrophobic interactions
 
Answer & Explanation Answer: C) peptide bonds

Explanation:
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Filed Under: Chemistry
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