Q:

Improve the bracketed part of the sentence.

The Centre should revisit (their) draft and incorporate the inputs of the report submitted by the standing committee and an expert panel.

A) its	B) it’s
C) these	D) No improvement

Answer & Explanation Answer: A) its

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14825

Q:

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

The instructor's rules were simple. Breathe through your mouth, not your nose; else the mask will fog up. Easier said than done; I got it wrong many a time. But once you fought habit and got the hang of it, the panoramic underwater world revealed itself to you with high-definition clarity.

Led by him, I slowly peered through the mask into what till then was crystal-clear water, shimmering in the sunlight. I saw pebbles, sand and my fluid shadow. I was in Nemo's universe. Sea cucumbers, sea anemone, clown fish, star fish, sea horses, parrot fish, butterfly fish and a bevy of colourful salt water fish swam past. A shoal of canary-yellow fish did a merry dance and another with vibrant blue fish followed it. They were oblivious to the snorkelers who struggled to take in the sight of a world so beautiful, so colourful, and resist opening their mouth wide in amazement; the tube would fall off!

The writer is describing her experience of which activity?

A) fishing	B) snorkelling
C) boat ride	D) long distance swimming

Answer & Explanation Answer: B) snorkelling

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14824

Q:

What is a binary semaphore? What is its use?

Answer

A binary semaphore is one, which takes only 0 and 1 as values. They are used to implement mutual exclusion and synchronize concurrent processes.

Workspace

Report Error

View answer Workspace Report Error Discuss

Subject: Operating Systems

9 14816

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.

Report Error

View Answer Report Error Discuss

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

13 14803

Q:

Rearrange the parts of the sentence in correct order.

Echolocating bats

P : emit sounds in patterns that

Q : and constant-frequency (CF) signals

R : contain both frequency modulated (FM)

A) RPQ	B) PRQ
C) RQP	D) QRP

Answer & Explanation Answer: B) PRQ

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14800

Q:

Which of the following substances cause temporary hardness in water?

1. Mg(HCO3)2

2. Ca(HCO3)2

3. CaCl2

4. MgSO4

A) 3 and 4	B) 2and 3
C) 1 and 4	D) 1 and 2

Answer & Explanation Answer: D) 1 and 2

Explanation:

There are two types of water hardness: temporary and permanent hardness. Temporary hardness is due to the presence of calcium hydrogen carbonate Ca(HCO3)2(aq) and magnesium hydrogen carbonate Mg(HCO3)2(aq).

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 14783

Q:

Rearrange the parts of the sentence in correct order.

There needs to be a

P : more coordinated effort

Q : forest diseases in India

R : towards dealing with

A) PRQ	B) PQR
C) RPQ	D) RQP

Answer & Explanation Answer: A) PRQ

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 14782

Q:

Which of the following group is NOT Dobereiner Triads?

A) Li, Na, K	B) N, P Au
C) Cl, Br, I	D) Ca, Sr, Ba

Questions

Quick Links