WorksheetsAssessment 2908
Total questions: 50
Worksheet time: 25mins
Find the sum of the co-primes of 48 less than 48.
60
16
8
384
The sum of two numbers is 528 and their H.C.F. is 33. The number of pairs of numbers satisfying the above condition is :
4
6
8
12
In what time will a sum of money double itself @ 20% per annum (p.a.) simple interest?
10 years
5 years
2 years
4 years
In how many ways can the letters of the word DUMDUMDIGADIGA be arranged ?
180
90
270
none of these
The ratio of age of A and B is 8:9 and the age of B is 2/3 of C’s age and age of C is 9/13 times the age of D. if the age of B is 18 years then the age of C is:
36 years
39 years
27 years
54 years
2ab5 is a four-digit number divisible by 25. If the number formed from the two digits ab is a multiple of 13, then ab=?
10
25
52
65
The number of distinct prime factors of 13013 is
1
2
3
4
The number of number pairs lying between 40 and 100 with their H.C.F. as 15 is:
3
4
5
6
The average of 7 consecutive number which are positive integers is 10. The average of lowest and highest such numbers is:
7
10
15
data insufficient
A sum was put at simple interest at a certain rate for 2 years. Had it been put at 4% higher rate, it would have fetched Rs. 112 more. The sum is:
1120
1400
1200
8000
In a certain code language ‘ tom kun sud’ means ‘ dogs are barking’ ‘ kun jo mop’ means ‘ dogs and horse’ and ‘ mut tom ko’ means ‘ donkeys are mad’. Which word in that language means ‘ barking’ ?
kun
sud
tom
jo
If sand is called air, air is called plateau, plateau is called well, well is called island and island is called sky, then from where will a woman draw water ?
Sky
Air
Well
Island
A person walks 1 km to his east and then he turns to south and walks for 5 km. Next, he turns east and walks 2 km. After this he turns to north and walk for 9 km. How far is he from his starting point?
5 km
4 km
6 km
can’t be determined
In a certain code language, ‘ mink yang pe, means ‘ fruits are ripe’ ‘ pe lao may mink’ means ‘ oranges are not ripe’ and ‘ may penue mink’ means ‘ mangoes are not ripe’. Which word in that language means mangoes ?
mink
pe
may
nue
If bangle is called cassette, cassette is called table , table is called game and game is called cupboard, then which is played in the tape recorder?
Table
Cupboard
Bangle
None of these
A man started walking towards north, he walks 10 m and then turns to right, walks 5 m and turns to his right again and walks 10 m and turns to his left, walks 7 m and then turns to his right. At this point in which direction is he facing?
East
South
South-east
South-west
If South-east becomes east and North-west becomes west and all the other directions are changed in the same direction. Then what will be the direction for north?
North-west
South-east
South-west
North-east
Kali walks 10 km towards North. From there, he walks 6 km towards South. Then, he walks 3 km towards East. How far and in which direction is he with reference to his starting point?
5 km West
5 km North-east
7 km East
7 km West
Soha is the niece of Saif. Saif’s mother is Sharmila. Kamla is Sharmila’s mother.Kamla’s husband is Hari. Krishna is the mother-in-law of Hari. How is Soha related to Hari.
Daughter
Great granddaughter
Grand niece
None of these
If ‘P x Q’ means ‘P is daughter of Q’, ‘P+Q’ means ‘P is father of Q’, ‘PQ’ means ‘ P is the mother of Q’ and ‘P-Q’ means ‘P is the brother of Q’, then in the expression AB+C ExF, how is A related to F?
Mother
Aunt
daughter-in-law
None of these
Choose the word which is not synonym for the given word. "Accumulation"
Collection
Conglomeration
Assemblage
Collagen
Choose the word which is antonym for the given word. "Ancestor"
Peer
Seer
Descendant
Genetic
Select correct analogy for Onset: Expiration ::
Desires: aspiration
Drama: scene
Proposal: Final
Tempo: Time
Select correct analogy for - Shower: Inundation ::
Inception: perception
History: potent
Imagine: sight
Criticism: Vilification
Choose the word which is not synonym for the given word. "Stingy"
Amicable
Penurious
Parsimonious
Frugal
Which principle of OOP ensures that an object controls access to its own data?
Abstraction
Encapsulation
Inheritance
Polymorphism
Modularity
What is the output of calling a virtual function in a constructor?
Calls the base class function
Calls the derived class function
Causes a compile error
Calls nothing
Crashes the program
In dynamic dispatch, method resolution is based on:
Compile-time type
Run-time type
Return type
Method signature
Object's address
What is composition in OOP?
Class-inheritance relation
One class containing another
Function overloading
Object instantiation
Data hiding
Your application has a class with 15 public methods and 3 private variables. The class is very hard to test. What could improve it?
Make all variables public
Split it based on functionality
Inherit it from a utility class
Convert to interface
Remove private methods
A Vehicle class has subclasses like Bike, Car, and Truck. All inherit the method startEngine(). What is being reused here?
Abstraction
Polymorphism
Inheritance
Composition
Overriding
In a payment system, you use a base interface PaymentMethod and classes like CreditCard, UPI, NetBanking. Which OOP feature allows this?
Abstraction
Polymorphism
Encapsulation
Inheritance
Delegation
You have a method draw() in the base class Shape. Different subclasses (Circle, Rectangle) implement it differently. This is an example of:
Inheritance
Method overloading
Static binding
Runtime polymorphism
Abstraction
A class BankAccount exposes methods to deposit() and withdraw() but does not allow direct access to its balance attribute. This demonstrates:
Inheritance
Encapsulation
Abstraction
Overloading
Composition
You are designing a library system. You want to allow searching books by title, author, and ISBN. What OOP principle best fits this?
Inheritance
Abstraction
Polymorphism
Encapsulation
Overloading
What is a Foreign Key?
A key used to access data from another table
A key used to identify each record in a table uniquely
A key that establishes a link between two tables
A key that is automatically generated by the database system
A key that store duplicate values
Which Normal Form Eliminates Repeating Groups by Putting them into Separate Tables and Connecting them through Foreign Keys?
First Normal Form (1NF)
Second Normal Form (2NF)
Third Normal Form (3NF)
Boyce-Codd Normal Form (BCNF)
Fourth Normal Form (4NF)
What is the Role of GROUP BY in SQL?
To sort query results in ascending order
To filter rows based on a particular condition
To perform aggregate functions on grouped data
To join multiple tables together
To insert grouped values into a new table
Which Type of Join Returns every Row from both Tables, Joining them where Conditions are met and Filling in NULLs for Missing Matches?
INNER JOIN
LEFT JOIN
RIGHT JOIN
FULL OUTER JOIN
What is “Normalization”?
The process of organizing data to minimize redundancy and dependency
The process of adding indexes to a database table
The process of encrypting sensitive data in a database
The process of backing up a database regularly
The process of archiving old data
What is the Role of the COMMIT Statement?
To save all changes made during the transaction
To discard all changes made during the transaction
To roll back the transaction to its starting point
To create a new transaction
To lock the transaction for changes
What is the Role of an Index?
To store large binary objects (BLOBs)
To enforce data integrity constraints
To boost the speed of data retrieval operations
To group related tables together
To store temporary results
What is a Schema in a Relational Database?
A graphical representation of data relationships
A collection of related tables
A blueprint that defines the structure of the database
A database query language
A type of database key
Which is not a Valid SQL Constraint?
DEFAULT
CHECK
LIMIT
UNIQUE
PRIMARY
Which keyword is used to combine the results of two SELECT statements and eliminate duplicates?
UNION
INTERSECT
JOIN
GROUP
MERGE
What is the best time complexity to search for an element in a sorted and rotated array?
O(n)
O(log n)
O(1)
O(n log n)
O(n²)
What is the maximum number of nodes in a binary tree of height h?
2^h
2^h – 1
2^(h+1) – 1
h²
log h
Which condition must be satisfied for a binary tree to be complete?
Every node has 2 children
All leaves are at same depth
All levels are filled except possibly last
Only root has two children
Which traversal ensures the shortest path in unweighted graphs?
DFS
BFS
Dijkstra
Topological
In an undirected graph, the degree of a vertex is:
Number of incoming edges
Number of outgoing edges
Total number of edges connected to it
Number of loops
Always equal for all nodes
