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.
These sensations are called palpitations. For most people, although palpitations can feel unpleasant, theyâre usually harmless and do not mean anything is wrong with your heart. You might also feel that your heart has missed or 'skipped' a beat or there has been an extra beat. An extra beat is called an ectopic beat.Ectopic beats are very common and are usually harmless and do not need any treatment. If you are concerned about palpitations or ectopic beats, you should speak to your doctor who will be able to do an ECG to assess your heart rate and the rhythm.n extra beat is called an ectopic beat. Ectopic beats are very common and are usually harmless and do not need any treatment. If you are concerned about palpitations or ectopic beats, you should speak to your doctor who will be able to do an ECG to assess your heart rate and the rhythm.