What are the correct answers and explanations for the following multiple-choice questions related to pre-technical studies?

Here are the answers to the questions:

1) The correct option is C.
C) Agriculture, business studies and computer
These three areas represent practical skills, economic understanding, and technological literacy, which are fundamental components of pre-technical studies.

2) The correct option is A.
A) Ceramist, welding, tailoring and fire fighting
These are all practical, skill-based careers that are typically associated with vocational training and pre-technical education.

3) The correct option is C.
C) For proportionality and focus on details
Symbols in technical drawings help to convey specific information concisely, ensuring correct proportions and highlighting important details without cluttering the drawing.

4) The correct option is C.
C) Passing of information from the sender to the receiver via a medium
This is the standard and most comprehensive definition of communication, applicable across all fields, including pre-technical studies.

5) The correct option is A.
A) Videos, E-mail, mobile phones and social networking
These are all modern electronic tools and platforms used for transmitting and receiving information, falling under Information and Communication Technology (ICT).

6) The correct option is D.
D) Improper storage of flammable materials, overloading electric sockets and human errors
These three factors are common and direct causes that can lead to fire outbreaks.

7) The correct option is B.
B) Using antivirus, use of passwords and back up files regularly
These are essential practices for safeguarding data on electronic devices from unauthorized access, loss, and malicious software.

8) The correct option is C.
C) SMART
SMART is an acronym for Specific, Measurable, Achievable, Relevant, and Time-bound. These are crucial criteria to consider when setting any goal, including financial goals, to ensure they are well-defined and attainable.