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**81) **A screw jack has pitch of the screw p, length of lever l, then velocity ratio is given by

**Answer is:**

## (2xPiexl)/(p)

### KPSC ITI JTO Workshop Calculation and Science Question Papers - 2018 with Answer Key

For more MCQ's Click Here**Related KPSC ITI JTO Workshop Calculation and Science Question Papers - 2018 with Answer Key**

**Answer is:**

### On raising an air bubble in water

**Answer is:**

### 100 watts

**Answer is:**