Delhi Police Constable | Computer Based Examination

Delhi Police Constable: full-length mock (100 questions)

A full-length Delhi Police Constable mock modelled on the Computer Based Examination: 100 original questions across General Knowledge and Current Affairs, Reasoning, Numerical Ability and Computer Fundamentals, weighted towards moderate and hard, each with a worked solution.

Before you start

100 questions in 90 minutes on a single clock — a full-length paper modelled on the Computer Based Examination.
Each question carries one mark; one fourth of a mark is deducted for a wrong answer, and unanswered questions carry no penalty.
The difficulty is deliberately weighted towards moderate and hard (about 77 of 100) so the set stays useful on repeat attempts. Every question is original with a worked solution shown after you submit.

Sections in this test

Section	Questions
General Knowledge and Current AffairsGeneral Awareness	50
ReasoningReasoning Ability	25
Numerical AbilityQuantitative Aptitude	15
Computer FundamentalsComputer Aptitude	10

Sample questions with worked solutions

A few questions from this test, with the answer key and the method behind it. The full set of 100 runs under a timer, and every solution is on the analysis screen once you submit.

General Awareness · solved example

The words "Socialist" and "Secular" were added to the Preamble by which amendment?

42nd AmendmentCorrect
44th Amendment
52nd Amendment
1st Amendment

Solution

The 42nd Amendment (1976) added "Socialist" and "Secular" to the Preamble.

Reasoning Ability · solved example

Statements: No cat is a dog. Some dogs are pets. Conclusions: I. Some pets are not cats. II. No pet is a cat. Which conclusion(s) follow?

Only I followsCorrect
Only II follows
Both I and II follow
Neither I nor II follows
Either I or II follows

Solution

The dogs that are pets cannot be cats, so some pets are not cats (I). II is too strong — other pets could be cats.

Quantitative Aptitude · solved example

In each, solve for x and y and give the relation: I. x² + 5x − 84 = 0 II. y² + 1y − 72 = 0

x > y
x < y
x ≥ y
x ≤ y
no fixed relationCorrect

Solution

The roots are x = 7, -12 and y = 8, -9. Comparing every x with every y gives "no fixed relation".

Computer Aptitude · solved example

In a spreadsheet, the formula =SUM(A1:A3) returns:

the total of the values in cells A1, A2 and A3Correct
the value in cell A3 only
the average of A1 and A3
the count of filled cells

Solution

A1:A3 is the range A1 to A3, so SUM adds the values in A1, A2 and A3.

General Awareness · solved example

The voting age in India was reduced from 21 to 18 by which amendment?

42nd Amendment
44th Amendment
61st AmendmentCorrect
52nd Amendment

Solution

The 61st Amendment (1988) lowered the voting age to 18.

How this test is marked

Correct answer

Wrong answer

-0.25

Unanswered

Because a blank carries no penalty, guessing only pays when you can eliminate at least two options. The analysis screen after the test shows you exactly where guessing cost you marks.