This is a collection of multiple-choice quizzes for the Geometry classes aimed to students in Engineering. For each multiple-choice quiz, a thorough explanation of the right, and the wrong, answers is given. These quizzes can be used by students both to evaluate their preparation on the subject and to acquire the skills required to successfully pass their final exams. These quizzes focus on: geometric vectors; matrices; linear maps; diagonalization of square matrices; analytic geometry in the plane and in the space; calculus in two variables.