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Q:

Natural Rubber is a Polymer of

A) butadiene	B) 2methyl-1,3butadiene
C) ethylene	D) isoprene

Answer & Explanation Answer: D) isoprene

Explanation:

Natural Rubber is a Polymer derived from Isoprene.

rubber-bands-503028_6401547100511.jpg image

Natural rubber is an addition polymer that is obtained as a milky white fluid known as Latex from a Tropical Rubber Tree.

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Filed Under: Chemistry
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Q:

what is the missing number in the sequence given below?

12 9 13.50 30.37 ? 341.71

A) 87.63	B) 91.12
C) 93.41	D) 97.94

Answer & Explanation Answer: B) 91.12

Explanation:

Given number series is 12 9 13.5 30.3 ? 341.7

Here the pattern followed by the series is

12

12 x 0.75 = 9

9 x 1.5 = 13.5

13.5 x 2.25 = 30.3

30.37 x 3 = 91.12

91.12 x 3.75 = 341.71

Hence, the missing number in the sequence is 91.12.

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Filed Under: Odd Man Out
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Q:

Who has been elected as the first woman chairman of Indian Bank's Association (IBA)?

A) Usha Ananthasubramanian	B) Shikha Sharma
C) Kaku Nakhate	D) Chanda Kochhar

Answer & Explanation Answer: A) Usha Ananthasubramanian

Explanation:

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
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Q:

Which of the following BEST describes a Service Desk?

A) A dedicated number of staff handling Incidents and service requests	B) A process within Service Operation providing a single point of contact
C) A dedicated number of staff handling service requests	D) A dedicated number of staff answering questions from users

Answer & Explanation Answer: A) A dedicated number of staff handling Incidents and service requests

Explanation:

A dedicated number of staff handling Incidents and service requests best describes a Service Desk.

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Filed Under: ITIL Certification
Job Role: Analyst , Database Administration , IT Trainer , Network Engineer , Project Manager

Q:

Round as a Dishpan, Deep as a Tub and Still the Oceans could not fill it up. What is it?

A) Bath Tub	B) A plug hole
C) Sieve	D) None

Answer & Explanation Answer: C) Sieve

Explanation:

Sieve.

A utensil consisting of a wire or plastic mesh held in a frame, used for straining solids from liquids.

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Filed Under: Word Puzzles
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Q:

Difference between Candidate key and Primary key?

Answer

Candidate Key – A Candidate Key can be any column or a combination of columns that can qualify as unique key in database. There can be multiple Candidate Keys in one table. Each Candidate Key can qualify as Primary Key.

Primary Key – A Primary Key is a column or a combination of columns that uniquely identify a record. Only one Candidate Key can be Primary Key.

One needs to be very careful in selecting the Primary Key as an incorrect selection can adversely impact the database architect and future normalization. For a Candidate Key to qualify as a Primary Key, it should be Non-NULL and unique in any domain.

Workspace

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Subject: Oracle Certification
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Q:

In a 40 litre mixture of alcohol & water, the ratio of alcohol and water is 5 : 3. If 20% of this mixture is taken out and the same amount of water is added then what will be the ratio of alcohol and water in final mixture?

A) 1:1	B) 2:1
C) 3:1	D) 1:2

Answer & Explanation Answer: A) 1:1

Explanation:

Quantity of alohol in the mixture = 40 x 5/8 = 25 lit

Quantity of water = 40 - 25 = 15 lit

According to question,

Required ratio = $\frac{20 - (40 x \frac{20}{100} x \frac{5}{8})}{15 - (40 x \frac{20}{100} x \frac{3}{8}) + 40 x \frac{20}{100}} = \frac{20}{15 - 3 + 8} = 1 : 1$

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Filed Under: Alligation or Mixture
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Q:

A water tank in a village is normally filled in 8 hours but takes 2 hours longer to fill because of a leak in its bottom. If the tank is full, in how many hrs will the leak empty it ?

A) 34 hrs	B) 36 hrs
C) 38 hrs	D) 40 hrs

Answer & Explanation Answer: D) 40 hrs

Explanation:

The time taken by the leak to empty the tank = $\frac{1}{8} - \frac{1}{10} = \frac{5 - 4}{40} = \frac{1}{40}$

Therefore, the leak empties the tank in 40 hours.

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Filed Under: Pipes and Cistern
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