250+ TOP MCQs on AJM – Applications, Advantages and limitations and Answers

Advanced Machining Processes Questions on “AJM – Applications, Advantages and limitations”.

1. Which of the following, are the processes and applications in which Abrasive jet machining can be applied?
a) Drilling
b) Cutting
c) Deburring
d) All of the mentioned

Answer: d
Clarification: Abrasive jet machining can be used for cutting, drilling, deburring and cleaning processes.

2. Using abrasive jet machining, wire cleaning and insulation stripping take place without affecting the conductor.
a) True
b) False

Answer: a
Clarification: Without affecting the conductor, both stripping and cleaning are done, by using Abrasive jet machining.

3. In Abrasive jet machining, intricate shapes and holes are machined on which type of materials?
a) Brittle
b) Thin
c) Difficult to machine
d) All of the mentioned

Answer: d
Clarification: Abrasive jet machining is used to machine, intricate shapes and holes in brittle, thin and difficult to machine materials.

4. State whether the following statement is true or false, about Abrasive jet machining.
“Using Abrasive jet machining, micro deburring of hypodermic needles can take place.”
a) True
b) False

Answer: a
Clarification: Abrasive jet machining can be used for micro deburring of hypodermic needles.

5. What are the type of materials that can be machined using Abrasive jet machining?
a) Glass
b) Sapphire
c) Quartz
d) All of the mentioned

Answer: d
Clarification: In Abrasive jet machining, the above mentioned materials can be machined, which are heat sensitive and brittle.

6. What is the amount of material utilizes when we machine parts using Abrasive jet machining?
a) Very low
b) Low
c) Medium
d) High

Answer: d
Clarification: In Abrasive jet machining, material utilization is very high since it removes material by using abrasives.

7. After how much time tool has to be changed in AJM?
a) 1 hr
b) 2 hrs
c) 5 hrs
d) No tool change required

Answer: d
Clarification: In Abrasive jet machining, tool changes are not required.

8. By using Abrasive jet machining, how much amount of hardening does the materials experience?
a) No hardening
b) Very less hardening
c) Average hardening
d) High hardening

Answer: a
Clarification: In Abrasive jet machining, hardening is not experienced by the machined materials.

9. Which type of materials cannot be machined using Abrasive jet machining?
a) Soft materials
b) Hard materials
c) Difficult to machine materials
d) None of the mentioned

Answer: a
Clarification: Soft materials such as candy bars, thin softwood etc.., cannot be machined using AJM.

10. Which of the following materials in Abrasive jet machining can be a health hazard?
a) Abrasive grains
b) Air carrier
c) Silica dust
d) None of the mentioned

Answer: c
Clarification: Silica dust, that occurs after machining can be a health hazard in AJM.

11. In AJM, air filters are used to remove which of the following?
a) Moisture
b) Oil
c) Other dust particles
d) All of the mentioned

Answer: d
Clarification: Before machining, air has to be filtered to remove dust, moisture and oil in the machining system.