self test 3

1.

1 point

What happens if the belt on a belt sander it not correctly tracked when installed?

belt will not move

belt will move backward

sander will stall

belt will creep sideways

2.

1 point

Which of the following is a class of portable grinders?

angle grinders

curved grinders

bevel grinders

belt grinders

3.

1 point

Abrasive belts are sized according to which of the following?

grain or grit

width and circumference

speed

work capacity

4.

1 point

What is the maximum distance that the tool rest should be from the face of a grinding wheel

1 mm (1/16 in.)`

6 mm (1/4 in.)

3 mm (1/8 in.)

12 mm (1/2 in.)

5.

1 point

Which of the following will cause a grinding wheel to create excess heat?

metal particles embedded in its surface

speed of rotation is too slow

grit is too coarse

insufficient lubrication

6.

1 point

A grinding wheel with an abrasive grit of 24 is classed as which of the following?

medium

fine

coarse

extra fine

7.

1 point

What material is used to make grinding wheels for soft materials?

coarse abrasives

sandstone abrasives

particles of diamonds

fine sbrasives

8.

1 point

What must be done to correct out-of-roundness on a grinding wheel?

grind hard metals

dress the face of the wheel

adjust the centre of the shaft

return the wheel to the supplier

9.

1 point

What is the purpose of the blotter-type paper disk on the sides of a grinding wheel?

absorb excess moisture

reduce strain caused by flanges

provide traction for the workpeice

prevent grinding on the sides

10.

1 point

Which of the following is needed for a grinder to produce a smooth surface on metal?

fine-grained abrasive

hard abrasive

open structure

low rpm

11.

1 point

What is the correct position for a grinding wheel that is being sounded?

suspended

lying on a flat surface

rotating slowly

mounted on the flanges

12.

1 point

The bond strength of the abrasive particles in a grinding wheel is identified by which of the following?

wheel grade

rpm rating

grit number

abrasive type

13.

1 point

What is the preferred cutting speed of a grinding wheel?

3000 rpm

wheel's maximum rpm rating

rpm that causes sparking

1725 feet per second

14.

1 point

Which of the following PPE must always be worn when using a grinder?

fireproof apron

leather gloves

hard hat

eye protection