Brain Storming

Brain Storming

A18Eng. Islam Al-JarrahHomeA is twice the large of B, Specify direction and speedIf A rotates once then B will rotate ..Q1Answer

Eng. Islam Al-JarrahQ13AnswerEng. Islam Al-JarrahWhat is the Gear Ratio if A is the Driver?What is the Gear Ratio if C is the driver?Which will have higher speed/force at the driven gear?Q11Answer

Eng. Islam Al-JarrahIn a compound gear, all gears are fixed on the same axel moving at the same speed. This is an example of a compound gear train. Gear A rotates in a clockwise direction at 30 revs/min. What is the output in revs/min at D and what is the direction of rotation ? TA=50, TB=20, TC=30, TD=10

Q10Answer

Eng. Islam Al-JarrahCalculate the output speed (the speed at which the blue gear moves) if: V1= 3000 (Orange gear) and t1=20 teeth, T2 = 50 teeth and T3 = 200 teethQ9Answer

Eng. Islam Al-JarrahWhat is the speed for Gear C, what is the direction?What do we call Gear B?Q8Answer

Eng. Islam Al-JarrahA is twice the size of B.What is the speed, direction and number of turns for B if A is the Driver.Q2Answer

Eng. Islam Al-JarrahPulley A is twice pulley B, Pulley B is the Driver. What is the speed, direction, force and number of turns?Q3Answer

Eng. Islam Al-JarrahPulley "A" is half the size of pulley "B" and rotates a full circle twice.What is the minimum weight that can hang from pulley "A" to just balance the 10kg mass hanging from pulley "B"?How many times will pulley "A" make a full rotation?

Q4Answer

Eng. Islam Al-JarrahPulley "A" is connected to the shaft of a motor. The motor can generate enough force to just lift a 8kg mass off the ground. Pulley "A" rotates in the direction of the arrow.Is the system of pulleys on the right sufficient to provide enough force to lift the 30kg mass off the ground?Will the 30kg mass be lifted off the ground by the motor? Explain.

Q5Answer

Eng. Islam Al-JarrahWhat is the force needed by the man to lift the 200 kg block?Q6Answer

Eng. Islam Al-JarrahQ18AnswerEng. Islam Al-JarrahQ17AnswerEng. Islam Al-JarrahQ16AnswerEng. Islam Al-JarrahQ15AnswerEng. Islam Al-JarrahQ14AnswerEng. Islam Al-JarrahWhich Gears are the Idler Gears?What is the purpose of the Idler Gear?

Q12Answer

Eng. Islam Al-Jarrah