Author name: Umar Draz

educationist

A scientific study of rocks that deals with composition, texture, and structure is called:

A. Geology
B. Petrology
C. Penology
D. Petrogenesis
Correct answer is: B. Petrology
Petrology studies rocks to understand their origin, composition, and formation processes.

Which gas is used in balloons and airships?

A. Argon
B. Neon
C. Helium
D. Xenon
Correct answer is: C. Helium
Helium is a light, non-flammable gas commonly used in balloons and airships.

Dinosaurs which lived 150–200 million years ago were:

A. Huge Mammals
B. Primitive birds
C. Giant reptiles
D. Primitive amphibians
Correct answer is: C. Giant reptiles
Dinosaurs were dominant reptiles during the Mesozoic era, 150–200 million years ago.

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.

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.
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