Question

1. an angle grinder is used to grind ______.

a. hard, heavy materials
b. imperfections in wood
c. soft, porous materials
d. nonmetals only

1. the grinder type best suited to sharpening worn edges on cutting tools is the ______.

a. detail grinder
b. angle grinder
c. end grinder
d. bench grinder

1. the adjustable tool rest on a bench grinder should be positioned ______.

a. 1/8 inch from the grinding wheel
b. 1/4 inch from the upper wheel guard
c. 1/2 inch from the lower guard
d. 3/4 inch from the wheel arbor

1. when using a grinder, two of the most important pieces of ppe are ______.

a. hard hat and rubber footwear
b. face mask and ear protection
c. gloves and safety glasses
d. ear protection and gloves

1. a type of grinder accessory that can be used to provide a stable surface for flexible sanding discs or buffing pads to rest against is called a(n) ______.

a. flap disc
b. arbor shield
c. backing pad
d. tool rest

1. a compact tool that operates by moving attachments back and forth at very high speeds is the ______.

a. compound miter
b. oscillating multi - tool
c. impact driver
d. table saw

1. a low velocity fastening system used to drive steel pins or threaded studs into masonry and steel is a(n) ______.

a. pneumatic screw nailer
b. powder - actuated tool
c. air impact wrench
d. mini hammer drill

Explanation:

Question 15

Angle grinders are designed for grinding hard, heavy materials (like metal, stone). Option b is for woodworking tools (not angle grinder), c is for softer tools, d is incorrect as they can grind metals. So a is correct.

Bench grinders are best for sharpening worn edges on cutting tools (they have a stable setup for this). Detail grinders are for detailed work, angle grinders for heavy grinding, end grinders for specific end - grinding. So d is correct.

The adjustable tool rest on a bench grinder should be positioned 1/8 inch from the grinding wheel (safety and effective grinding standard). Other options don't match the standard positioning. So a is correct.

Answer:

a. hard, heavy materials

Question 16