Questions

Q:

Which pop musician had his first major hit with a song titled "Heart break Hotel"?

Answer

Elvis Presley

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Q:

Which energy source generates radioactive waste?

A) Nuclear power B) Thermal power
C) Hydel power D) All of the above
 
Answer & Explanation Answer: A) Nuclear power

Explanation:

which_energy_source_generates_radioactive_waste1543400097.jpg image

Nuclear power energy source generates radioactive waste.

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Q:

Which equation is an example of a synthesis reaction?

A) 2H2 + O2 → 2H2O B) Na + Cl → NaCl
C) HA + BOH → H2O + BA D) NaCl + AgNO3 → NaNO3 + AgCl
 
Answer & Explanation Answer: B) Na + Cl → NaCl

Explanation:

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

 

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Fever in the season of dengue is sending Calcuttans scurrying to hospitals for admission, triggering a shortage of beds that has forced some private health care institutes to even postpone planned surgeries. Apollo Gleneagles Hospitals on the Bypass had 504 patients in its care as on Thursday of whom 70 had been admitted with fever. Belle Vue Clinic had 180 patients, 32 of them with dengue. Calcutta Medical Research Institute had 350 patients 60 of them with fever.

The number of people admitted for treatment of fever caused by dengue or any undiagnosed illness has been rising every day across hospitals for more than a fortnight.

"There has been heavy pressure on all private hospitals for admission of dengue and cases of unknown fever since the beginning of August. Now it is a surge," said Pradip Tondon, President of the Association of Hospitals of Eastern India.

In July, four to five patients were getting admitted with fever on an average in every hospital. The number has since ballooned with the Calcutta Municipal Corporation apparently in denial about the extent of the dengue outbreak and the Government focused on playing down the threat.

Such has been the rush of patients with fever that some hospitals are calling up people to postpone admissions planned in advance, mostly for surgeries. "We have told many people to come only when we call them to confirm availability of beds," said an official at Belle Vue.


The word 'ballooned' implies

A) playing with balloons B) decreased
C) increased tremendously D) increased slightly
 
Answer & Explanation Answer: C) increased tremendously

Explanation:
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Q:

"Abhinav Bharat" was founded in 1904 as a secret society of revolutionaries by :

A) Damodar Chapekar B) V. D. Savarkar
C) Praffula Chaki D) Khudiram Bose
 
Answer & Explanation Answer: B) V. D. Savarkar

Explanation:
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Q:

What is Primary Key in DBMS?

Answer

A primary key is a special relational database table column or combination of columns designated to uniquely identify all table records. That is, A primary key is a column or set of columns in a table that uniquely identifies tuples (rows) in that table.


A primary key, also called a Primary Keyword.



Main Features Primary key are ::


It must contain a unique value for each row of data.


It cannot contain null values.

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Q:

A sheet or web supported by a metal frame is

A) Trampoline B) Gasoline
C) Colin D) None of the above
 
Answer & Explanation Answer: A) Trampoline

Explanation:

A trampoline is a sheet or web supported by springs in a metal frame and is used as spring board.

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Q:

From where do most producers get energy?

A) plants B) sun
C) water D) All of the above
 
Answer & Explanation Answer: B) sun

Explanation:

Most producers use sun light for making their energy in the process of photosynthesis. The energy they prepared is sugar and glucose. 

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