Question

the screwdrivers blade should be almost as ______ as the slot in the fastener so that twisting force applied to the screwdriver is transferred right out to the edges of the head, where it has the most effect. select one: a. wide b. thick c. long d. both a and b

Explanation:

To transfer twisting - force effectively to the head edges, the screwdriver blade should be as wide as the fastener slot. Thickness and length are not relevant here.

Answer:

a. Wide