1. Impact angle in Abrasive water jet machining range between which of the following values?
a) 0° to 10°
b) 10° to 30°
c) 30° to 90°
d) 90° to 100°
Explanation: Machine impact angle in AWJM will range between 30° to 90°.
2. Of the following values, between which values traverse speed will range?
a) 0.1 to 5 m/min
b) 5 to 100 m/min
c) 100 to 500 m/min
d) 500 to 1000 m/min
Explanation: Value of traverse speed ranges between 5 to 100 m/min.
3. Depth of cut values in Abrasive water jet machining ranges between which values?
a) 0.01 to 2 mm
b) 2 to 250 mm
c) 300 to 500 mm
d) 650 to 900 mm
Explanation: The value of depth of cut in AWJM ranges between 2 to 250 mm.
4. In the existing advanced machining processes, what is the full form of IJM?
a) Ice Jet Manufacturing
b) Ink Jet Manufacturing
c) Ice Jet Machining
d) Ink Jet Machining
Explanation: Full form of IJM is Ice jet machining in advanced machining processes.
5. In Ice jet machining, the abrasive particles used for material removal are replaced by which of the following?
a) Silica particles
b) Ice particles
c) Fluids
d) Colloidal solutions
Explanation: In Ice jet machining, the abrasive particles are replaced by ice particles.
6. When compared to Abrasive water jet machining, how are the material removal rates in Ice jet machining?
a) Very low
b) Low
c) High
d) Remains same
Explanation: In Ice jet machining, material removal rates are relatively low when compared to AWJM.
7. State whether the following statement is true or false about Ice jet machining.
“Water can be reused in IJM, unlike that of AWJM and WJM.”
a) True
b) False
Explanation: Unlike that of AWJM, water can be reused in Ice jet machining.
8. Which of the following are the components of machining system of IJM?
a) High pressure pump
b) Ice particle generator
c) Ultrasonic Atomizer
d) All of the mentioned
Explanation: All the components mentioned above are present in the machining system of IJM.
9. Which of the following component will be present just after the cooling coil?
a) High pressure pump
b) Ice particle generator
c) Cutting nozzle
d) Ultrasonic Atomizer
Explanation: Prior to nozzle water is cooled by coils that is submerged in liquid nitrogen.
10. Ice particles of size <500 µm are produced by which of the following process?
a) Stream freezing
b) Ice particles supply
c) Normal cooling
d) None of the mentioned
Explanation: Ice particles of size <500 µm are produced by using stream freezing.