ENGLISH FOR AUTOMOBILE ENGINEERING -UNIT 3 ROTARY SYSTEM

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Practice 1 a) D has a number of teeth F. b) B has a diameter C. d) has a faster speed F. g) B has a greater number of teeth than A; the speed of is therefore . e) The speed of is slower than the speed of . f) C has a smaller A, so A has a speed. greater greater faster E B number of teeth than B Using Figure 3.2 to complete the text below: c) F has a speed . than than than D slower than C Slower than A

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Nội dung Text: ENGLISH FOR AUTOMOBILE ENGINEERING -UNIT 3 ROTARY SYSTEM

ENGLISH FOR AUTOMOBILE ENGINEERING UNIT 3 ROTARY SYSTEM Lecturer: Lang Van Thang HOCHIMINH UNIVERSITY OF INDUSTRY
Presentation Read the text and complete HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 1 Using Figure 3.2 to complete the text below: a) D has a greater number of teeth than F. b) B has a greater diameter than C. c) F has a faster speed than D . d) E has a faster speed than F. e) The speed of B is slower than the speed of C . f) C has a smaller number of teeth than A, so A has a slower speed. g) B has a greater number of teeth than A; the speed of B is therefore Slower than A . HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 2 Choose a, b, c, d or e to complete the sentences. Use Figure 3.2 and Table 3.1 below: a) The ratio of the number of teeth is b the size ratio. b) The two gear system in Figure 3.2 are e . c) A:C and D:F are c . d) The movement of A is a the movement of B. e) The speed of B is d the speed of A. f) The direction of movement of D is the bdirection of movement F. HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 3 HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 3 1. If the movement of the bottom pulley is anticlockwise, the movement of the Top pulley is also Anticlockwise. 2. If the movement of the top pulley is clockwise, the movement of the bottom pulley is also clockwise . 3. If the movement of the front sprocket is anticlockwise, the movement of the rear sprocket is also Anticlockwise. 4. If the movement of the small gear is anticlockwise , the movement of the large gear is clockwise. 5. If the movement of the large gear is clockwise, the movement of the small gear is anticlockwise. HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 4 Read the text following; then complete the second one. Use Figures 2.5 and 2.6. HOCHIMINH UNIVERSITY OF INDUSTRY
In pulley systems, the diameter of the pulleys is very important. In pulley system in Figure 2.5, the diameter of the top pulley is 20 cm and the diameter of the bottom pulley is 10 cm. If the speed of the top pulley is 100 revolutions per minute (100 rev/min), the speed of the bottom pulley is 200 rev/ min. HOCHIMINH UNIVERSITY OF INDUSTRY
Practice 4 Read the text following; then complete the second one. Use Figures 2.5 and 2.6. HOCHIMINH UNIVERSITY OF INDUSTRY
Bikes have a sprocket and chain system. The number of teeth on the sprockets is very important. On the bike in Figure 2.6, the front sprocket has 32 teeth and The rear sprocket has 16 teeth . If the speed of the front sprocket is 60 rev/min, the speed of the rear sprocket is 120 rev/min . Therefore: teeth of front Speed of Speed of sprocket rear = front x sprocket sprocket teeth of rear sprocket HOCHIMINH UNIVERSITY OF INDUSTRY
Practice Diameter of front Speed of Speed of sprocket rear = front x sprocket sprocket Diameter of rear sprocket HOCHIMINH UNIVERSITY OF INDUSTRY
HOCHIMINH UNIVERSITY OF INDUSTRY