Diagnostic Computing Entry Tests

The Computing Diagnostic Tests by PLS Academy are designed to help students evaluate their preparation for entry tests in Computer Science and related fields, including NUST NET, FAST, ECAT, and NTS exams. Covering essential topics like programming, algorithms, data structures, computer fundamentals, and logical reasoning, these tests help students identify strengths, weaknesses, and areas that need improvement. Detailed feedback after each test allows aspirants to refine their problem-solving skills, focus on high-yield topics, and plan targeted revision. Regular practice of computing diagnostic tests enables students to track progress, enhance speed and accuracy, and optimize their preparation strategy for top performance in engineering and computing entry tests.

Created by PLSBOOST

Computing Diagnostic Test

Topic: Computing Diagnostic Test

Quiz Contains: 30 MCQs

Mathematics = 10

Physics = 7

Computer Sciences = 7

English = 6

Time Duration: 30 Minutes

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Provide the Following to Get Started!

1 / 30

Joint equation of lines perpendicular to lines represented by x² – 2xy – y² = 0:

x2 + 2xy – y2 = 0

x2 – 2xy – y2 = 0

x2 – 2xy + y2 = 0

x2 + 2xy + y2 = 0

2 / 30

Pⁿ_r=

n!/(n+r)!

n/(n-r)

n!/(n+1)

n!(n-r)!

3 / 30

if f(x=1/x)=x, then f(x) is equal to

1/x+1

1/x-1

x/x+1

4 / 30

The extraneous root of the equation 2+√x+2=x is:

x=1

x=2

x= -2

None of these

5 / 30

SPOT THE ERROR:

If I went to the police, they will want me to describe him.

Went

The

Will

Describe

6 / 30

In the expansion of (3x-1/x²)¹⁰,the 5^th term from the end is:

16486/x^5

13486/x^5

17010/x^5

None of these

7 / 30

#include

int main() {

unsigned int x = 5;

int y = -10;

if (x + y > 0) {

printf(“Positive\n”);

} else {

printf(“Negative\n”);

}

return 0;

}

What is the output of this code?

Positive

Negative

Compiler warning

Undefined behavior

8 / 30

Answer to the passage:

A four-person crew from Classic Colors is painting Mr Ahmed’s house. Ahmed is painting the front of the house. Maira is in the alley behind the house painting the back. Ayesha is painting the window frames on the north side, Hamza is on the south. If Ahmed switches places with Ayesha, and Ayesha then switches places with Hamza, where is Hamza?

in the alley behind the house

on the north side of the house

in front of the house

on the south side of the house

9 / 30

The time required for the fetching and execution of one simple machine instruction is

Delay time

CPU cycle

Real time

Seek time

10 / 30

In a right angled triangle ABC with right angle at B, which one of the following statements is true?

a^2 + b^2 = c^2

a^2 – c^2 = b^2

a^2 + c^2 = b^2

a^2 + b^2 = c^2

11 / 30

Find the derivative of 3^(2x).

2ln(3) × 3^(2x)

In(3) × 3^(2x)

2x × 3^(2x)

In(2) × 3^(2x)

12 / 30

A flat coil of wire having 5 turns has an inductance, L. The inductance of a similar coil having 20 turns is:

Elimination Tool

A) 16L

B) L/4

C) uL

D) L

13 / 30

The conditional Operator requires?

One operand

Two operand

Three operand

Four Operand

14 / 30

A, G, H are in

A.P.

G.P.

H.P.

none of these

15 / 30

Fill in the blank with the correct option:

Tweezers ____ always useful to handle small objects.

Elimination Tool

A) is

B) are

C) will

D) may

16 / 30

In the given figure, the average translational kinetic energy per molecule of an ideal gas depends upon its

Elimination Tool

A) volume

B) pressure

C) molecule type

D) absolute temprature

17 / 30

Spot the Error

At any moment Martian air might draw his soul from him, as marrow comes from a white bone.

Martian

from him

comes from a

marrow

18 / 30

Which of the following loops is a post-test loop?

for loop

while loop

do-while loop

Nested loop

19 / 30

The base vertices of an isosceles triangle PQR are Q(1,3) and R(-2,7). The vertex P can be.

(1,6)

(5/6,6)

(1/2,6)

(2,6)

20 / 30

An electron moving with velocity v has momentum 3 x 10 -26 Kg.m/s. The de Broglie wavelength associated with it is ______. Value of h = 6.63 x 10-34 is.

Elimination Tool

A) 24.1 nm

B) 22.14 m

C) 22.1 nm

D) 22.1 mm

21 / 30

The attribute on the left-hand side of the arrow in a functional dependency is the

Candidate Key

Determinant

Foreign Key

Primary Key

22 / 30

In order to achieve accuracy, the slide wire of a potentiometer should be:

Elimination Tool

A) As long as possible

B) As short as possible

C) Neither too small neither too large

D) Very thick

23 / 30

Complete the sentence by choosing the most appropriate option, from the given lettered choices (A to E) below:

The tree must ______ planted over fifty years ago.

Elimination Tool

A) been

B) be been

C) would been

D) have been

24 / 30

tan and cos are negative in which quadrant?

III

25 / 30

If two particles collide with one anti particle the resultant will give

Elimination Tool

A) One particle, one anti particle

B) Total annihilation

C) One antiparticle only

D) None of these

26 / 30

What is the strength of the magnetic field known as?

Elimination Tool

A) Flux

B) Density

C) Magnetic strength

D) Magnetic flux density

27 / 30

Find an error in the following sentence.

Elimination Tool

A) We are trying

B) To locate the

C) Historical city for

D) The past two years.

28 / 30

Which short key is used to open the window Help in MS Word document

F11

29 / 30

What is another name for a computer Bug?

Virus

Error

Malware

None of the above

30 / 30

In Young’s Double slit experiment, if the spacing between the slit is doubled and the linear distance from the screen is reduced to one half then the spacing between the two adjacent bright fringes will be ____ of actual value.

Elimination Tool

A) Remains same

B) Reduce to one half

C) Reduce to one quarter

D) Increase to twice

Your score is

Pos.	Name	Score	Duration
1	Khadija imran	100 %	1 minutes 22 seconds
2	Mister	100 %	1 minutes 30 seconds
3	Hassan	100 %	3 minutes 3 seconds
4	Rameen	97 %	1 minutes 7 seconds
5	so	97 %	2 minutes 11 seconds
6	Sadat	93 %	4 minutes 19 seconds
7	Djsk	90 %	1 minutes 18 seconds
8	Mehroosa	87 %	5 minutes 37 seconds
9	Khadija hayat	83 %	1 minutes 57 seconds
10	Alina Tayyab	83 %	4 minutes 18 seconds
11	aisa zinda hu ee zindagi	70 %	7 minutes 17 seconds
12	AneelKumar	63 %	3 minutes 44 seconds
13	abdueee	60 %	4 minutes 57 seconds
14	Fahad sultan	57 %	9 minutes 32 seconds
15	Umber	57 %	28 minutes 36 seconds
16	Diej	53 %	2 minutes 29 seconds
17	Khadija hayat	53 %	8 minutes 8 seconds
18	g	50 %	5 minutes 38 seconds
19	Wmman	50 %	14 minutes 43 seconds
20	Kami	50 %	30 minutes
21	Hafsa	50 %	30 minutes
22	Ismat	47 %	4 minutes 19 seconds
23	ma\	47 %	5 minutes 41 seconds
24	Muhammad Arslan	47 %	18 minutes 56 seconds
25	Ali	43 %	4 minutes 3 seconds
26	Zubaida	43 %	7 minutes 32 seconds
27	uzair	43 %	14 minutes 47 seconds
28	ainazahid	40 %	5 minutes 7 seconds
29	G	40 %	5 minutes 26 seconds
30	khizar tareen	40 %	7 minutes 52 seconds
31	sga	40 %	9 minutes 20 seconds
32	ffff	40 %	9 minutes 49 seconds
33	Eman	40 %	11 minutes 19 seconds
34	Abdul Moez	40 %	17 minutes
35	REHAN KHAN	40 %	20 minutes 26 seconds
36	Opf	37 %	4 minutes 32 seconds
37	Meerab	37 %	6 minutes 58 seconds
38	Asma	37 %	7 minutes
39	Rameen gillani	37 %	8 minutes 42 seconds
40	Muhammad Arslan	37 %	9 minutes 14 seconds
41	AneelKumar	37 %	10 minutes 33 seconds
42	aizah gul	37 %	11 minutes 34 seconds
43	Sadat	37 %	13 minutes 56 seconds
44	Ali	37 %	18 minutes 6 seconds
45	Alina Tayyab	37 %	25 minutes 1 seconds
46	Muaz Rana	33 %	2 minutes 39 seconds
47	Ibad Ullah	33 %	3 minutes 46 seconds
48	Muaz Rana	33 %	3 minutes 49 seconds
49	Muhammad mubeen	33 %	3 minutes 56 seconds
50	habibi	33 %	4 minutes 31 seconds
51	ismat zehra	33 %	6 minutes
52	y	33 %	9 minutes 37 seconds
53	okkk	33 %	9 minutes 40 seconds
54	iqra	33 %	14 minutes 22 seconds
55	Khadija imran	33 %	14 minutes 56 seconds
56	Ayesha Akram	33 %	25 minutes 55 seconds
57	Muaz Rana	30 %	2 minutes 4 seconds
58	Amir	30 %	2 minutes 28 seconds
59	Ismat	30 %	5 minutes 58 seconds
60	ma	30 %	8 minutes 58 seconds
61	Muaz Rana	30 %	10 minutes 15 seconds
62	DOLL	30 %	11 minutes 18 seconds
63	Hamna ubaid	30 %	13 minutes 28 seconds
64	Iman	30 %	13 minutes 36 seconds
65	Hadia Sajid	30 %	19 minutes 10 seconds
66	M Fahad	27 %	3 minutes 18 seconds
67	Muaz Rana	27 %	3 minutes 20 seconds
68	Muzammil	27 %	5 minutes 41 seconds
69	Fiza	27 %	7 minutes 18 seconds
70	abdueeeeeeeheheheh	27 %	8 minutes 53 seconds
71	Moomna Nazir	27 %	11 minutes 58 seconds
72	Junaid Khan	27 %	12 minutes 15 seconds
73	Mister	27 %	13 minutes 52 seconds
74	Muhammad Zain	23 %	4 minutes 43 seconds
75	Muaz Rana	23 %	6 minutes 12 seconds
76	Fjvxdd	23 %	11 minutes 58 seconds
77	Tasawer Ali	23 %	13 minutes 7 seconds
78	bisma	23 %	14 minutes 34 seconds
79	Muaz Rana	23 %	51 minutes 46 seconds
80	Ahsen Ali Khan	20 %	1 minutes 19 seconds
81	Ibrahim	20 %	1 minutes 52 seconds
82	Mehroosa	20 %	5 minutes 52 seconds
83	makjhis	20 %	7 minutes 55 seconds
84	Ismat zehra	20 %	9 minutes 38 seconds
85	YaSiR	20 %	17 minutes 8 seconds
86	Fahad	17 %	8 minutes 58 seconds
87	aaa	17 %	16 minutes 19 seconds
88	Ali hassan	17 %	30 minutes 25 seconds
89	hamamd	7 %	1 minutes 47 seconds

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