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Q:

The ratio of efficiencies of two filling pipes is 4 : 5. There is a third emptying pipe which efficiency is two third of the average efficiency of first two filling pipes can empty a filled tank in 36 minutes. In how much time both the filling pipes can fill the tank when it is empty?

A) 16 min B) 12 min
C) 14 min D) 20 min
 
Answer & Explanation Answer: B) 12 min

Explanation:

Let the efficiencies of filling pipes is 4p and 5p respectively.

Efficiency of pipe which empty the tank = 2/3 x 9p/2 = 3p

Total work = 3p x 36 = 108p

 

Time to fill the tank by both the pipes = 108p/9p = 12 min.

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Filed Under: Pipes and Cistern
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Q:

The standard English sentence order does which of the following?

A) Verb-Subject-Object B) Subject-Verb-Object
C) Verb-Object-Subject D) Object-Verb-Subject
 
Answer & Explanation Answer: B) Subject-Verb-Object

Explanation:

The standard English sentence order is Subject-Verb-Object.

 

For example ::

In the sentence, Why did you (S) do (V) that (O)?

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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Q:

Which tribe of Arunachal Pradesh is celebrating Boori Boot Yollo Festival?

A) Gond B) Bhil
C) Santhals D) Nyishi
 
Answer & Explanation Answer: D) Nyishi

Explanation:
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Filed Under: Indian Culture
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Q:

Which statement best describes perigee?

A) The closet point in the Moon's orbit to Earth B) The farthest point in the Moon's orbit to Earth
C) The closest point in Earth's orbit of the Sun D) The Sun's orbit that is closest to the Moon
 
Answer & Explanation Answer: A) The closet point in the Moon's orbit to Earth

Explanation:

The closet point in the Moon's orbit to Earth is called perigee whereas the farthest point in the Moon's orbit to Earth is called apogee.

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Filed Under: General Science
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Q:

Which substance contains metallic bonds?

A) C6H12O6 B) Hg
C) H2O D) NaCl
 
Answer & Explanation Answer: B) Hg

Explanation:

Metallic bond is a bond between two metal atoms. Here in the given option Hg is the only metal with metallic bond.

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Filed Under: Chemistry
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Q:

In math questions answers each questions are solved with explanation. The questions are based from different topics. Care has been taken to solve the questions in such a way that students can understand each and every step

1. Which is greater than 4?

(a) 5,

(b) -5,

(c) -1/2,

(d) -25.                                             

A) 5 B) 20
C) 2 D) 3
 
Answer & Explanation Answer: A) 5

Explanation:

Solution:

5 greater than 4.

Answer: (a)

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Filed Under: Numbers
Exam Prep: Bank Exams

Q:

The kidneys are stimulated to produce renin

A) when the pH of the urine decreases B) when the specific gravity of urine rises above 1.10
C) when the peritubular capillaries are dilated D) by a decrease in the blood pressure
 
Answer & Explanation Answer: D) by a decrease in the blood pressure

Explanation:

The kidneys are stimulated to produce renin by a decrease in the blood pressure.

 

The_kidneys_are_stimulated_to_produce_renin1559028461.jpg image

The renin-angiotensin system or RAS regulates blood pressure and fluid balance in the body. When blood volume or sodium levels in the body are low, or blood potassium is high, cells in the kidney release the enzyme, renin. Renin's primary function is therefore to eventually cause an increase in blood pressure, leading to restoration of perfusion pressure in the kidneys.

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Filed Under: Biology
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Q:

Which country is the world's largest silver producer?

A) Mexico B) Peru
C) Russia D) China
 
Answer & Explanation Answer: A) Mexico

Explanation:

The world's largest silver producer is Mexico.

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Filed Under: General Awareness
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