Questions

Q:

Oligopolistic industries are characterized by

A) a few dominant firms and no barriers to entry B) a large number of firms and low entry barriers
C) a few dominant firms and substantial entry barriers D) a few dominant firms and low entry barriers
 
Answer & Explanation Answer: C) a few dominant firms and substantial entry barriers

Explanation:

Oligopoly is market structure where a small number of large firms are there. Oligopolistic industries are characterized by a few dominant firms and substantial entry barriers.

Report Error

View Answer Report Error Discuss

Filed Under: Business Awareness
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

6 2560
Q:

The main result of aerobic respiration is the

A) production of lactic acid as an end product B) production of ATP from the breakdown of glucose
C) conversion of radiant energy into chemical energy D) storage of energy in a polysaccharide
 
Answer & Explanation Answer: B) production of ATP from the breakdown of glucose

Explanation:

The three steps within the aerobic respiration process are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Photosynthesis builds glucose, and what was built in photosynthesis is broken down during aerobic respiration.

 

Hence, production of ATP from the breakdown of glucose is the main result of aerobic respiration.

Report Error

View Answer Report Error Discuss

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

2 2560
Q:

How long is an IPv6 address?

A) 128 bytes B) 32 bits
C) 128 bits D) 32 bytes
 
Answer & Explanation Answer: C) 128 bits

Explanation:

IPv6 - Internet Protocol Version 6.

IPv6 addresses have a size of 128 bits.

Internet Protocol Version 6 [IPv6] is the successor to the Internet's first addressing infrastructure, Internet Protocol version 4 (IPv4).

In contrast to IPv4, which defined an IP address as a 32-bit value, IPv6 address have a size of 128 bits. 

Report Error

View Answer Report Error Discuss

6 2560
Q:

Which of the following reactions are redox reactions?

A) Ba(s)+Cl2(g)--->BaCl2(s) B) Mg(s)+Br2(l)--->MgBr2(s)
C) Al(s)+3Ag^+(aq)--->Al^3+(aq)+3Ag(s) D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A redox reaction is a type of reaction which involves transfer of electrons among two species. This reaction is also called oxidation-reduction reaction.

In oxidation process, there is an increase in oxidation state of an atom, ion or molecule by losing the electrons.

In reduction process, there is a decrease in oxidation state of an atom, ion or molecule by accepting the electrons.

1)

image

In this reaction, Ba undergoes oxidation and Cl undergoes reduction.
This reaction is redox reaction.
In this reaction, oxidation number of Ba increases from 0 to +2 . So, Ba undergoes oxidation. The oxidation number of Cl decreases from 0 to -1. So, Cl undergoes reduction.

 

2) 

 

image

From this above reaction, it is clear that Aluminum undergoes oxidation and silver undergoes reduction.
Due to this, this reaction is redox reaction.

In this reaction, oxidation number of Aluminum increases from 0 to +1. So, aluminum undergoes oxidation. The oxidation number of silver decreases from +1 to 0. So, silver undergoes reduction.

 

3)


image

In this reaction, Mg undergoes oxidation and Br undergoes reduction.
This reaction is redox reaction.
The reactions 1, 3 and 4 are redox reactions.
In this reaction, oxidation number of Mg increases from 0 to +2 . So, Mg undergoes oxidation. The oxidation number of Br decreases from 0 to -1 . So, Br undergoes reduction.

 

Hence all the above reactions are redox reactions.

Report Error

View Answer Report Error Discuss

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

1 2560
Q:

The greenhouse effect is caused by

A) Deforestation B) Burning of Fossil Fuels
C) Increase in Population D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The major greenhouse gases (GHG’s) solely responsible for greenhouse effect are Carbon dioxide, Ozone, Methane and Water vapor. Although these gases comprise 1% of our atmosphere, they act like a thick warm blanket outside that surrounds this planet and regulate climate control. Greenhouse effect is not bad. In fact, it is needed for all of us to survive on planet Earth. In short, the greenhouse effect is nothing but a naturally occurring process designed by nature that aids in heating earth’s surface and helps to maintain ecological balance.

Now, while some of that heat dissipates into space, some of it burns along the atmosphere, and some of it penetrates the atmosphere and finds its way into the lower atmosphere and the planet’s surface. This in turn raises the average temperature of the Earth. Therefore, the increase in the Earth’s surface temperature due to increase in the number of greenhouse gases leads to global warming.

 

Causes of Green House Effects ::

 

* Burning of Fossil Fuels

* Deforestation 

* Increase in Population

* Farming

* Industrial Waste and Landfills.

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

5 2559
Q:

Which best describes somatic mutations?

A) transmitted to progeny B) not transmitted to progeny
C) Can't be identified D) None of the above
 
Answer & Explanation Answer: A) transmitted to progeny

Explanation:

The best example for somatic mutation would be cancer, familial cancer (which transmits through gametes to the next generation) are not so common while sporadic cancer is seen the most where body cells of a particular area goes through mutations for a number of years and becomes cancerous, but it is not transmitted to next generation.

Report Error

View Answer Report Error Discuss

Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst

4 2558
Q:

The international date line passes through

A) Hudson Bay B) Denmark Strait
C) Bering Strait D) Baffin Bay
 
Answer & Explanation Answer: C) Bering Strait

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 2557
Q:

Which food item is a rich source of protein?

A) Yogurt B) Milk
C) Cheese D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Dairy products like milk, cheese and yogurt are rich source of protein as well as calcium also. 

Report Error

View Answer Report Error Discuss

Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

2 2557