Umar Draz, Author at DocMCQs

Which type of plants cannot prepare their own food?

A. Lichens

B. Fungi

C. Autophytes

D. Holophytes

Correct answer is: B. Fungi

Fungi are heterotrophs and obtain nutrients from other organisms instead of photosynthesis.

Radioactivity can be detected by use of:

A. Polarimeter

B. Geiger counter

C. Calorimeter

D. None of these

Correct answer is: B. Geiger counter

A Geiger counter detects ionizing radiation emitted by radioactive substances.

Data is processed by the computer into:

A. Numbers

B. Data

C. Processor

D. Output

Correct answer is: B. Data

Computers process raw data to produce meaningful information for users.

Which of the following sections does not exist in a slide layout?

A. Titles

B. Lists

C. Charts

D. Animations

Correct answer is: D. Animations

Slide layouts include titles, lists, and charts, but animations are applied separately.

Largest font size available in formatting toolbar:

A. 48

B. 10

C. 64

D. 72

Correct answer is: D. 72

Standard formatting toolbars allow a maximum font size of 72 points in MS Office.

1024 KB is equal to:

A. 1 MB

B. 10 MB

C. 100 MB

D. 1000 MB

Correct answer is: A. 1 MB

1024 kilobytes make up 1 megabyte in computer memory measurement.

MS Word is an:

A. Application software

B. Operating system

C. Output device

D. Window

Correct answer is: A. Application software

MS Word is a software application used for word processing tasks.

The sum of three consecutive even natural numbers is 78. Find the greatest number:

A. 22

B. 24

C. 26

D. 28

Correct answer is: D. 28

If the sum is 78, the numbers are 24, 26, 28; the greatest is 28.

If a/3 = b/2 then (2a + 3b)/(3a – 2b) = ?

A. 12/5

B. 5/12

C. 3/2

D. 2/3

Correct answer is: A. 12/5

Solving the equation step by step gives (2a + 3b)/(3a – 2b) = 12/5.

An observer 1.6 m tall is 20/3 m away from a tower. The angle of elevation to the top is 30°. Find the height of the tower:

A. 21.6 m

B. 24.72 m

C. 23.2 m

D. None of these

Correct answer is: A. 21.6 m

Using trigonometry: height = observer height + distance × tan(30°) = 21.6 m.

Author name: Umar Draz