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Q:

Ashwin fires two bullets from the same place at an interval of 15 minutes but Rahul sitting in a bus approaching the place hears the second sound 14 minutes 30 seconds after the first. If sound travels at the speed of 330 meter per second, what is the approximate speed of bus?

A) 330/29 m/s B) 330 x 30 m/s
C) 330/14 m/s D) 330/900 m/s
 
Answer & Explanation Answer: A) 330/29 m/s

Explanation:

Second gun shot take 30 sec to reach rahul imples distance between two.

given speed of sound = 330 m/s

Now, distance = 330 m/s x 30 sec 

 

Hence, speed of the bus = d/t = 330x30/(14x60 + 30) = 330/29 m/s.

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Filed Under: Time and Distance
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

A Website address is a unique name that identifies a specific

A) Link B) PDA
C) Web browser D) Website
 
Answer & Explanation Answer: D) Website

Explanation:
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Filed Under: Application Development
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO , Database Administration , IT Trainer , Project Manager

Q:

Which of the following is a secondary air pollutant?

A) Acid rain B) SO2
C) CO2 D) Dust particles
 
Answer & Explanation Answer: A) Acid rain

Explanation:

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

 

Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

 

Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

 

Hence, Acidrain is a secondary air pollutant.

 

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Filed Under: General Awareness
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Q:

Formation of curd from milk is chemical reaction.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

The process of conversion of milk into curd is called fermentation.  It is a chemical change. Milk consists of globular proteins called casein. As the microorganism lactobacillus react with milk and turn it to curd. For it 37 degree temperature is needed. But sometimes when it does not get favourable condition, then other microorganism react and makes the curd taste different.

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Subject: Chemistry
Exam Prep: CAT , Bank Exams , AIEEE
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Q:

What is true about economic resources?

A) Economic resources are limited. B) Economic resources are always controlled by the government.
C) Economic resources include only money. D) Economic resources exist only at the individual level.
 
Answer & Explanation Answer: A) Economic resources are limited.

Explanation:

Economic resources are those goods and services that can be converted into valuable products for individual and business purposes.

There are four major types of economic resources:

1. land,

2. labor,

3. capital and

4. entrepreneurship.

 

Land and labor are natural and human resources, while capital means physical resources or money.

Entrepreneurship converts these resources into usable goods.

 

However, resources have finite values, and proper utilization depends on economic systems and economic decisions.

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Filed Under: Indian Economy
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

What lives in the winter dies in the summer?

A) Plants B) Animals
C) Icycle D) None of the above
 
Answer & Explanation Answer: C) Icycle

Explanation:

An icycle, a hanging spike of ice formed by the freezing of dripping water forms due to cool in winter and dies in summer due to hot.

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Filed Under: Logic Puzzles
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Q:

When should you stop at green and go at red?

Answer

While eating a watermelon, we all go along the red and stops at green.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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Q:

Oar is to rowboat as foot is to

A) Walk B) Loafers
C) Skateboard D) Running
 
Answer & Explanation Answer: C) Skateboard

Explanation:

A rowboat can be put into motion by using oar. Similaarly, a skateboard can be put into motion by using foot.

The other options like walk and running are not objects to be in motion. And loafers are something worn on foot.

 

Hence, Oar : Rowboat :: Foot : Skateboard.

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