Valuable conclusions on the effect of. loads and heating on concrete explosive spalling are shown in the paper. Keywrds: High-strength concrete, fire, explosive spalling, columns, heating rate, axial loads. INTRODUCTION. Concrete spalling under high temperatures is a major factor of reducing itâs fire resistance.
This is a sample EMT-B Cardiology test of 15 questions. Unlike the versions of our tests that are included with a paid subscription, this test cannot be automatically graded by clicking the button at the bottom of the page. With our paid subscription to EMT National Training you get instant grading, rationale behind the correct answers and a detailed exam tracking system. EMT-Basic Test - Cardiology.
The animation shows how the heart's internal electrical system causes the heart to pump blood. Your heart's electrical system controls all the events that occur when your heart pumps blood. The electrical system also is called the cardiac conduction system. If you've ever seen the heart test called an EKG (electrocardiogram), you've seen a graphical picture of the heart's electrical activity.