Radioactivity can be detected by use of:
Correct answer is: B. Geiger counter
A Geiger counter detects ionizing radiation emitted by radioactive substances.
Data is processed by the computer into:
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?
Correct answer is: D. Animations
Slide layouts include titles, lists, and charts, but animations are applied separately.
Largest font size available in formatting toolbar:
Correct answer is: D. 72
Standard formatting toolbars allow a maximum font size of 72 points in MS Office.
1024 KB is equal to:
Correct answer is: A. 1 MB
1024 kilobytes make up 1 megabyte in computer memory measurement.
MS Word is an:
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:
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) = ?
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:
Correct answer is: A. 21.6 m
Using trigonometry: height = observer height + distance × tan(30°) = 21.6 m.
Who is Wang Yaping?
Correct answer is: A. First Chinese woman to walk in space
Wang Yaping became the first Chinese woman to perform a spacewalk, marking a historic milestone.