Question

# Need help on questions 1-10.Multiple Choice Mechanical Engineering Assignment.

No explanation needed please just number the answers. Need finished by today.

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1-7 There are 4 gears A, B,C, D. Gear A is the input and has 10 teeth . Gear B has 20 teeth. Gear C has 16 teeth and Gear D is the output with 30 teeth. GR = Gear ratio (1) GR (D:A) = (A) 1/3 (B) 1/2 (C) 3/1 (D)2/1 (2) GR (B:A) = (A) 2/1 (B) 1/2 (C) 1/3 (D) 3/1 (3) GR (C:B) = (A) 5/4 (B) 8/15. (C) 15/8 (D) 4/5 (4) GR (D:C) = (A) 8/15 (B) 15/8 (C) 4/5 (D) 3/1 (5) If the diameter of Gear A is 10 ft, what is the diameter of Gear D? (A) 30 ft (B) 3.3 ft (C) 20 ft (D) 5 ft (6) If the angular rotation of Gear D is 40 rpm, what is it for Gear A? (A) 93 rpm (B) 13 rpm (C) 80 rpm (D) 120 rpm (7) If the torque of Gear A is 80 ft lb, then what is it for Gear D? (A) 27 ft lb (B) 160 ft lb (C) 240 ft lb (D)40 ft lb 8-10 There are 3 gears A,B,C, with Gear A being the output and Gear C being the input. (8) If the angular velocity of Gear A is 40 rpm and Gear c is 80 rpm, what is the GR(A:C)? (A) 2/1 (B) 1/2 (C) 8000 (D) 1/8000 (9) If the diameter of Gear C is 15 ft, what is it for Gear A? (A) 2 ft (B) 30 ft (C) 7.5 ft (D) 0.5 ft (10) If the torque of Gear A is 20 ft lb, what is it for Gear C? (A) 40 ft lb (B) 30 ft lb (C) 10 ft lb (D) 20 ft lb

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