Questions

Q:

In a certain city, 5% of all the persons in town have unlisted phone numbers. If you select 100 names at random from that city's phone directory, how many people selected will have unlisted phone numbers?

Answer

  Zero. You are selecting names from the list, so they are all listed.

Report Error

View answer Workspace Report Error Discuss

Subject: Math Puzzles

6 7100
Q:

Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? 

A) K1k2/k1+k2 B) 2k1k2/k1+k2
C) K1+k2/k1k2 D) None
 
Answer & Explanation Answer: B) 2k1k2/k1+k2

Explanation:

We know that,

 

The equivalent K =  L1 + L2L1K1+L2K2

 

where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively.

 

But here L1 = L2 = L (say)

 

Then K = L+L/(L/K1 + L/K2)  =  2K1K2K1+K2

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: GATE , Bank Exams , AIEEE
Job Role: Network Engineer

12 7099
Q:

Germany signed the Armistice Treaty on ____ and World War I ended

A) January 19, 1918 B) May 30, 1918
C) November 11, 1918 D) February 15, 1918
 
Answer & Explanation Answer: C) November 11, 1918

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: General Awareness

20 7099
Q:

Kalbaisakhis or Norwesters originate in

A) Chhota Nagpur Plateau B) Karnataka Coast
C) Coromandal Coast D) Malwa plateau
 
Answer & Explanation Answer: A) Chhota Nagpur Plateau

Explanation:

They are carried eastwards to West Bengal and Assam by westerly winds

Report Error

View Answer Report Error Discuss

Filed Under: Indian Geography

11 7098
Q:

Improve the bracketed part of the sentence.

 

Corruption has become (the day's order).

 

A) today's order B) the order of the day
C) the order of today D) no improvement
 
Answer & Explanation Answer: B) the order of the day

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 7091
Q:

Find the similarity in the following :

 

Carbon, Silicon, Boron, Arsenic

 

A) All of them are gases B) All of them are non-metals
C) All of them are metals D) No similarity
 
Answer & Explanation Answer: B) All of them are non-metals

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: Bank Exams

0 7090
Q:

Select the antonym of:

 

skeptic

A) profaner B) heretic
C) atheist D) devotee
 
Answer & Explanation Answer: D) devotee

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: English
Exam Prep: Bank Exams

0 7086
Q:

ATP stands for -

A) Adenosine triphosphate B) Alanine triphosphate
C) Adrenalin triphosphate D) Asparagine triphosphate
 
Answer & Explanation Answer: A) Adenosine triphosphate

Explanation:

Adenosine triphosphate (ATP) is a nucleotide which is also called as nucleoside triphosphate is a small molecule used in cells as a coenzyme. It is often referred to as the "molecular unit of currency" of intracellular energy transfer. ATP transports chemical energy within cells for metabolism. Most of the cellular functions need energy in order to be carried out such as synthesis of proteins, synthesis of membranes, movement of the cell, cellular division, transport of various solutes etc. The ATP is the molecule that carries energy to the place where the energy is needed. When ATP breaks into ADP (adenosine diphosphate) and Pi (phosphate), the breakdown of the last covalent link of phosphate liberates energy that is used in reactions where it is needed.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams

31 7081