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اختبار ترايبولوجي
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اختبار ترايبولوجي
1.
حيمالر الرحمن هللا
بسم يكرر جامعة-الهندسة كلية–الميكانيكية الهندسة قسم-الشعب كل-( رقم ايبولوجيرت اختبار2) قمر.....................................ال الشعبة ........................................................... االسم .........................الجامعي األ الؤالسول:-رقم حول ةردائ ضعاإلجابةالصحيحة 1.اإل االحتكاك قوة تساوي أو أقل الحركي االحتكاك قوة.ستاتيكي 2.الفعل رد قوة مع ًاطردي تتناسب االحتكاك قوة عمليا 3.الجاف االحتكاك قوةتقريب السرعة عن مستقلة تكونا 4.وتفكيكية الموضعي اللحام لكسر االزمة القوة هي االحتكاكية القوة 5. االحتكاك معامل a)والقوة جسمين بين االحتكاك قوة بين النسبة عن للتعبير تستخدم عددية كمية هو،بينهما الضاغطة b).قياس وحدة له ليس c)الجسمين مادتي على يعتمد d)خاطئة االجابات كل ًاكاحتكا المادية األوساط أقل..... . الزجاج المبللة الخرسانة الجافة الخرسانة المطاط يعرف االحتكاك قياس جهاز a)التيربوميتر b)كولمب c)الويروميتر d)الليبروميتر زاتي تزليق مواد تعتبر a)البوليمرات b)اللدائن c)الحديد d)a&b تحدث واالنزالق االلتصاق ظاهرة a)الفرقالمعام بين كبيرلاالحتكاكالساكنوالحركي. b)القوةاإلضاييةالمطلوبةالكائن لتحريك
2.
c).الالسط صالبة يي
زيادةح. d)السطوح على التشحيم تطبيق. بسبب يحدث سطحين بين الباردة اللحام a)المفرط التشحيم b)بين التصاقالسطحين c)نسبيا عالية السطح خشونة d)االتصال مجال يي منخفضة الحرارة درجة من نوع هو الخدشالتآكل a)االلتصاقي b)احتكاكي c)ميكانيكي d)كاللي االحتكاك لتقليلاالنزالقيأن يجب ،تكونزي القص قوةمقارنة التشحيم تبمن القص قوةالسطوحالترايبلوجية a)منخفض b)عالي c)متساوي d)مؤثر غير التالية الخصائص تمتلك جيدة للتشحيم يجوز ال :الجواب مداهنة؟ هو وما جيدة التشحيم زيوت خصائص هي ما: •عالية غليان نقطة. •التجمد درجة انخفاض. •العالية اللزوجة مؤشر. •الحراري االستقرار. •التآكل من الوقاية. •لألكسدة عالية مقاومة.
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