There are different ranges of purposes for which you may want to get a temporary visa to a country. These can be for travel, work, studies, business, and various other reasons.

eVisitor visa is similar to ETAs. They allow you to visit a country for a limited period of time. While you can engage in a business visitor activity, the eVisitor visa does not permit you to work in the country.

Yes, it can be denied after processing. But the decision can be appealed. The applicant can also reapply for a visa in future. However, they must submit a new visa application and pay the fee for the new application.

The four most common types of Temporary Visas that allow you short-stays in a foreign country. 

• Temporarily Travel Visas or a Visitor Visa
• Temporary Work Visas
• Temporary Student Visas
• Temporary Business Visas

• If you have family or friends with whom you are going to stay, you need to show proof at the time of your visa application.
• If you are going to stay in a hotel, you have to show the reservation copies to the authorities for your visa to get stamped.
• You need to prove that you have enough funds in your bank account to support your trip’s expenses. This can be done by showing a sufficient amount in your bank account.
• You need to prove that you are in good health to travel to a foreign country.
• Some countries may ask proofs like family ties and other commitments to make sure that you are going to return to your nation.
• It is better if you have a planned itinerary for your trip.
• If you are issued a travel visa, then in most countries, you should not work with that visa.
• A temporary visa may not permit you to visit certain parts of a country. In such cases, you may need to take special permission from authorities to visit those places.

• You need to show the authorities that you have enough educational qualifications to work on their land.
• The chances of getting a temporary worker's visa would improve a lot if you have a job opportunity already in hand, before applying for a visa.
• For this, you need to check jobs in the country’s job portals. By keeping in touch with these portals and regularly improving your skills, you can bag a job.
• You need to prove that you are of good character by submitting a conduct certificate from previous employers.
• You need to show to them that you do not have any criminal record.
• English proficiency is a must for almost all countries. To survive the new culture, you need to be able to easily communicate in the language.
• Many countries allow dependents of the main applicant to stay with them while working. The dependents may or may not get permission to work; depending upon the country the main applicant is opting for.

• A student needs to apply for the temporary visa well before the date he/she would be starting his college, since it may take a while depending upon the country.
• It is preferred to have campus and accommodation sorted out before leaving for the country.
• Some countries allow students to work part-time for certain hours a week while studying. This is very advantageous to a student as they would be able to earn some amount for their expenses.
• There would be internships, after completing a course in some universities. This is beneficial to students, as they would be exposed to the work environment of that country.
• Many countries offer short term and long-term visas, depending upon the university and course you choose.
• If your visa expires before the completion of your course, then you need to renew it. You need to apply for the renewal before your present visa expires. If not, it would be illegal to stay in any country without a proper visa to support you.
• Most of the countries offering student visas would ask for a language test from the applicant. In most cases, it would be an English proficiency test. The more proficient you are in the language, the more are the chances that you would be getting the student visa easily.
• Some countries allow the family members of the visa holder to stay with them, depending on the course and various other factors.

Many countries allow people to conduct business in their country with a temporary visa.

• Business Visas are given to those who are investors, who are willing to do business with existing companies in the country, and those who are willing to extend their companies into the new territory.
• While some countries allow people who can invest large sums into their economy, some countries do not need that huge amount.
• Some countries ask you to prove that you have a successful career as a business person to enter their country.

The most common ways to visit the US are B-1 and B-2 visas and the Visa Waiver Program. Persons may study in the US using F-1, M-1 and J-1 temporary visas. The most common types of temporary visas to work in the US include E, H, L, O and P visas.