Procedure Text for SMK : How to Operate a Bench Grinder Safely

 

Goal

To operate a bench grinder safely and correctly.

Materials / Equipment

• A bench grinder
• Safety goggles
• Work gloves
• Metal workpiece
• Apron

Steps

1. First, wear your safety goggles, gloves, and apron.
2. Make sure the bench grinder is clean and in good condition.
3. Check that the grinding wheel is properly installed.
4. Adjust the tool rest to a safe position.
5. Turn on the bench grinder carefully.
6. Wait until the grinding wheel rotates at full speed.
7. Hold the metal workpiece firmly with both hands.
8. Then, place the metal slowly against the grinding wheel.
9. Move the workpiece gently from side to side for even grinding.
10. Do not press the metal too hard on the wheel.
11. After finishing, remove the workpiece carefully.
12. Turn off the bench grinder.
13. Finally, clean the work area and store the tools properly.

Conclusion

Operating a bench grinder must be done carefully and safely. By following the correct steps, workers can grind metal effectively and avoid accidents.

Excercises

1. What is the main purpose of the text?
A. To explain how to repair a bench grinder
B. To tell how to operate a bench grinder safely
C. To describe the shape of a bench grinder
D. To compare two grinding machines

2. Which of the following is a safety equipment mentioned in the text?
A. School bag
B. Notebook
C. Safety goggles
D. Ruler

3. What should you do before turning on the bench grinder?
A. Pour water on it
B. Wear safety goggles, gloves, and apron
C. Hit the grinding wheel
D. Remove the tool rest

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4. Why should we wait until the grinding wheel rotates at full speed?

A. To make the machine look better
B. To use the grinder more safely and effectively
C. To cool the metal workpiece
D. To reduce the size of the wheel

5. How should the metal workpiece be held during grinding?
A. Firmly with both hands
B. Loosely with one hand
C. With wet hands
D. Without looking at it

6. What should you do after finishing the grinding process?
A. Leave the machine on
B. Put the workpiece on the wheel
C. Turn off the bench grinder
D. Press the metal harder

7. Why should you not press the metal too hard on the wheel?
A. Because it can be unsafe and may damage the workpiece or machine
B. Because the wheel will stop immediately
C. Because the metal will become softer
D. Because the apron will fall off

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8. A student starts grinding metal immediately after turning on the machine, without waiting for full speed. What is the possible risk?

A. The work becomes automatically perfect
B. The process may become unsafe and less effective
C. The grinder will clean itself
D. The metal will disappear

9. Look at the following steps:

1. Turn on the bench grinder
2. Wear safety equipment
3. Hold the metal workpiece firmly
4. Wait until the wheel rotates at full speed
5. Grind the metal slowly

What is the correct order?
A. 2 – 1 – 4 – 3 – 5
B. 1 – 2 – 3 – 4 – 5
C. 2 – 3 – 1 – 4 – 5
D. 1 – 4 – 2 – 3 – 5

10. After using the bench grinder, a worker leaves the area dirty and the tools scattered. What is the best conclusion?
A. It is acceptable because the work is finished
B. It is good because others can use the tools freely
C. It is unsafe and shows poor workshop discipline
D. It helps save time for the next user