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WorksheetsQuiz on AJM & USM
Total questions: 20
Worksheet time: 6mins
In advanced machining processes, what is the full form of AJM?
Automatic Jet Manufacturing
Abrasive Jet Machining
Automated Jet Machining
Abrasive Jet Manufacturing
In Abrasive jet machining, work piece material of removed by which of the following means?
Vaporization
Electro plating
Mechanical abrasion
Corrosion
Which type of materials can be machined using Abrasive jet machining?
Glass
Ceramics
Hard Materials
All of the mentioned
In the machining system of AJM, which is the medium of carrying the abrasive grains for machining?
Liquids
Gases
Any fluids
None of the mentioned above
Which of the following gas, should never be used as the carrier of abrasives?
Nitrogen
CO2
Oxygen
Air
In Abrasive jet machining, what may be the size of the abrasive grains used?
10 – 50 µm
50 – 100 µm
100 – 150 µm
200 – 300 µm
In the following properties of the nozzle, which of them does not influence the MRR?
Size
Wear
Outside temperature
Distance from workpiece
As the abrasive flow rate increases, what happens to the volumetric material removal rate?
Increases
Decreases
Increase and then decrease
Decrease and then increase
Which of the following, are the processes and applications in which Abrasive jet machining can be applied?
Drilling
Cutting
Deburring
All of the mentioned
Which type of materials cannot be machined using Abrasive jet machining?
Soft materials
Hard materials
Difficult to machine materials
None of the mentioned
WHat is the full form of USM in advance machining process.
Ultrasound manufacturing
Ultrasonic machining
Ultrasonar machining
UV Spectrum manufacturing
Amplitude of oscillation of tool in USM ranges between
10-20 μm
100-200 μm
25-100 μm
150-200 μm
Frequency of tool oscillation in USM ranges between
15-30 KHz
30-50 KHz
50-80 KHz
10-20 KHz
USM process can be used for
Conductors
Insulators
Metals
All of the mentioned
Component which is used to convert high frequency electrical impulse into mechanical vibration in USM is known as
Tool
Feeding unit
Transducer
None of the mentioned
In USM cutting rate increases with grain size
Yes
No
USM is recomended for the materials having hardness
more than 50HRC
less than 50HRC
60HRC-70HRC
70HRC-80HRC
The size of the hole produced is not influenced by the grit size of the abrasive.
True
False
(a) size abrasive particles are used for rough surface finish.
USM does not produce thermal, electrical and chemical abnormal surface
True
False
