Q2: Fill the blanks by the right answer for the following: 1- The belt size is.............. that has the input sheave on the shaft of an electric motor rated at 25 hp at 870-rpm, full-load speed. The drive is to a Hammer mill that is to be used 8 hours (h) daily at approximately 310 rpm. (a) 3V (b) 5V (c) 8V 2- The power transmitted by a no. 80 chain, single-strand, operating on a 32-tooth sprocket at 1200 rpm is approximately. .........Where the input is an internal combustion engine, and the output is to a fluid agitator. (a) 70 hp (b) 102 hp (c) 61 hp 3- If a column has both ends fixed and has a length of 20 in (508 mm). It is made of SAE 1040 HR steel (S,-290 MPa, E-207 GPa) and has a circular shape with a diameter of 1 in (25.4 mm). The column type is................... (a) Long column (b) Short column 4- If the helical gear reduces the speed from 600 rpm to 300 rpm, the pinion has a number of teeth of 30 teeth, the helix angle is 15° and the normal pressure angle is 20°. The bending geometry factor for both pinion and gear are................. (a) 0.378 and 0.445 (b) 0.495 and 0.518 5. The best combination between alternatives of subsystems, is. (a) A,B,C, (b) A,B,C) 10 (c) A,B,C (c) 0.512 and 0.589 (d) A,B,C: 6- A sand casting bronz wormgear has a diametral pitch of 10 and 30 teeth. The material factor is. (a) 1000 (b) 960 (c) 200 7- If the bevel gear reduces the speed from 600 rpm to 300 rpm, and the pinion has number of teeth of 30 teeth. The bending geometry factor for both pinion and gear are: (a) 0.164 and 0.172 (b) 0.273 and 0.232 (c) 0.355 and 0.385