Questions

Q:

An estuary  is a place where 

A) deposits of mud can be seen at a triangular piece of land B) silt is deposited near the mouth of a river
C) fresh water collects at the mouth of a river D) fresh and salt water mix near the mouth of a river
 
Answer & Explanation Answer: D) fresh and salt water mix near the mouth of a river

Explanation:

Alternative (a) refers to a delta

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Filed Under: World Geography

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Q:

The ratio of volume of a cone to that of a cylinder if cylinder radius is reduced by 4 times and its height increased by 8 times of that of the cone, is - 

A) 3:2 B) 2:3
C) 5:7 D) 7:5
 
Answer & Explanation Answer: B) 2:3

Explanation:

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And,  height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

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Q:

Process of gaining electrons is known as _____.

A) oxidation B) reduction
C) radiation D) both oxidation and reduction
 
Answer & Explanation Answer: B) reduction

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

Benign prostatic hyperplasia is characterized by

A) Not functioning of prostate gland B) Enlargement of prostate gland
C) Epididymis issue D) None of the above
 
Answer & Explanation Answer: B) Enlargement of prostate gland

Explanation:

Benign prostatic hyperplasia (BPH) also called benign prostatic hypertrophy (or) prostate gland enlargement is a noncancerous enlargement of the prostate gland that can lead to lower urinary tract symptoms (LUTS).

 

It is the diagnosis characterized by proliferation of the cellular elements of the prostate.

benign_prostatic_hyperplasia_is_characterized_by1533702972.jpg image

 

Symptoms ::


As the prostate gets larger, it starts to pinch the urethra. This causes symptoms that affect your urine flow, such as:

 

* Dribbling when you finish

* A hard time getting started

* A weak stream, or you pee in stops and starts.

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Filed Under: Biology
Exam Prep: Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

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Q:

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To bid defiance

A) To disregard recklessly B) To apologize
C) To act in a like manner D) To bribe
 
Answer & Explanation Answer: A) To disregard recklessly

Explanation:
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Filed Under: English

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Q:

Glycolysis is the conversion of

A) Glucose to pyruvate B) Glucose to proteins
C) Pyruvate to glucose D) All of the above
 
Answer & Explanation Answer: A) Glucose to pyruvate

Explanation:

Glycolysis is the metabolic process of converting 1 molecule of glucose to 2 molecules of pyruvate through a series of 10 enzyme catalyzed reactions.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

A subquery in an sql select statement.

Answer

A Subquery or Inner query or a Nested query is a query within another SQL query and embedded within the WHERE clause.


Subqueries are most frequently used with the SELECT statement. The basic syntax is as follows::


SELECT column_name [, column_name ]
FROM table1 [, table2 ]
WHERE column_name OPERATOR
(SELECT column_name [, column_name ]
FROM table1 [, table2 ]
[WHERE])



A subquery is used to return data that will be used in the main query as a condition to further restrict the data to be retrieved.


Subqueries can be used with the SELECT, INSERT, UPDATE, and DELETE statements along with the operators like =, <, >, >=, <=, IN, BETWEEN, etc.


 


There are a few rules that subqueries must follow −


 


1. Subqueries must be enclosed within parentheses.


2. A subquery can have only one column in the SELECT clause, unless multiple columns are in the main query for the subquery to compare its selected columns.


3. An ORDER BY command cannot be used in a subquery, although the main query can use an ORDER BY. The GROUP BY command can be used to perform the same function as the ORDER BY in a subquery.


4. Subqueries that return more than one row can only be used with multiple value operators such as the IN operator.


5. The SELECT list cannot include any references to values that evaluate to a BLOB, ARRAY, CLOB, or NCLOB.


6. A subquery cannot be immediately enclosed in a set function.


7. The BETWEEN operator cannot be used with a subquery. However, the BETWEEN operator can be used within the subquery.

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Q:

A supply curve slopes upward because

A) an increase in price gives producers an incentive to supply a larger quantity. B) the quantity supplied of most goods and services increases over time.
C) an increase in input prices increases supply. D) as more is produced, total cost of production falls.
 
Answer & Explanation Answer: A) an increase in price gives producers an incentive to supply a larger quantity.

Explanation:

The supply curve slopes upward because for reflecting the higher price needed to cover the higher marginal cost of production. 

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Filed Under: Marketing and Sales
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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