Questions

Q:

Who among the following has been awarded the Blue Planet Prize-2017 in October 2017?

 

A) Hans Joachim Schellnhuber B) J.K. Anderson  
C) M. Suzanchuk D) Garry Bentzone
 
Answer & Explanation Answer: A) Hans Joachim Schellnhuber

Explanation:
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Filed Under: Honours and Awards
Exam Prep: Bank Exams

1 15608
Q:

Which of the statements given below are correct?

1. The author of the novel 'Half of a Yellow Sun' is Chimamanda Ngozi Adichie.
2. The author of the novel 'Middlesex' is Jeffrey Eugenides.
3. The author of the novel 'Missile Gap' is China Mieville.

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

Explanation:
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Filed Under: Books and Authors
Exam Prep: Bank Exams

0 15607
Q:

Define latency, transfer and seek time with respect to disk I/O.

Answer

Seek time is the time required to move the disk arm to the required track. Rotational delay or latency is the time it takes for the beginning of the required sector to reach the head. Sum of seek time (if any) and latency is the access time. Time taken to actually transfer a span of data is transfer time.

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15 15600
Q:

According to WHO, the bird flu virus cannot be transmitted through food cooked beyond

A) 60 degrees celsius B) 70 degrees celsius
C) 90 degree celsius D) 100 degree celsius
 
Answer & Explanation Answer: B) 70 degrees celsius

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Filed Under: General Awareness

91 15575
Q:

main()

{

float me = 1.1;

double you = 1.1;

if(me==you)

printf("yes");

else

printf("No");

}

A) Yes B) No
C) Both D) Compilation error
 
Answer & Explanation Answer: B) No

Explanation:

For floating point numbers (float, double, long double) the values cannot be predicted exactly. Depending on the number of bytes, the precession with of the value represented varies. Float takes 4 bytes and long double takes 10 bytes. So float stores 0.9 with less precision than long double.

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Filed Under: Software Testing
Job Role: Software Architect

10 15561
Q:

Which combination of atoms can form a polar covalent bond?

A) H and Br B) H and H
C) Na and Br D) N and N
 
Answer & Explanation Answer: A) H and Br

Explanation:

Only H and Br form Polar Covalent Bond.

 

Covalent bonding:

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

1. Polar Covalent Bond

2. Nonpolar Covalent Bond

 

1. Polar Covalent Bond:

A Polar Covalent Bond is created when the shared electrons between atoms are not equally shared. This occurs when one atom has a higher electronegativity than the atom it is sharing with. The atom with the higher electronegativity will have a stronger pull for electrons (Similiar to a Tug-O-War game, whoever is stronger usually wins). As a result, the shared electrons will be closer to the atom with the higher electronegativity, making it unequally shared.

 

2. Nonpolar Covalent Bond:

A Nonpolar Covalent Bond is created when atoms share their electrons equally. This usually occurs when two atoms have similar or the same electron affinity. The closer the values of their electron affinity, the stronger the attraction. This occurs in gas molecules; also known as diatomic elements. Nonpolar covalent bonds have a similar concept as polar covalent bonds; the atom with the higher electronegativity will draw away the electron from the weaker one.

 

Here H and H and N and N form Non-polar covalent bonds. Na and Br form the ionic bond.

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

13 15544
Q:

Which of the statements given below are correct?

1. The author of the novel 'Gilead' is Don Winslow.
2. The author of the novel 'Wolf Hall' is Stephen Dobyns.
3. The author of the novel 'To Kill a Mockingbird' is Harper Lee.

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

Explanation:
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Filed Under: Books and Authors
Exam Prep: Bank Exams

0 15526
Q:

The hormone that helps in Parthenocarpy

A) Abscisic acid B) Gibberellin
C) Ethylene D) Cytokinin
 
Answer & Explanation Answer: B) Gibberellin

Explanation:
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Filed Under: Biology

133 15523