A gear reduction of 4 to 1 (output turns 4 times slower than input) will make the output shaft's torque, compared to the input shaft's torque,

Correct answer to question 158 (Mechanical Comprehension): about 4 times greater

Method

In an ideal gear train, torque and speed change inversely, so a 4 to 1 speed reduction multiplies output torque by about 4.