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State whether the following statement is true or false about Magnetic abrasive finishing. “Vibratory motion that is axial, is introduced in the magnetic field by the oscillation of magnetic poles.”

Correct Answer: True
Axially vibrating motion is required for machining in MAF.

State whether the following statement is true or false about magnetic abrasive finishing. “Increasing the magnetic flux density raises the rate of material removal in finishing.”

State whether the following statement is true or false about Magnetic abrasive finishing. “Mirror finishing, removed burrs with lowering the accuracy of the shape are achieved by MAF.”

State whether the following statement is true or false about Magnetic abrasive finishing. “Higher rates of material removal are obtained, with an increase in amplitude and frequency.”

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.”

Consider the following statements.
1. All valid arguments contain only true premises and a true conclusion.
2. Some valid arguments contain only false propositions - false premises and a true conclusion.
3. All valid arguments contain only false propositions all premises are false, conclusion is false as well.
Which of the above statements is correct?

Which of the following statements are correct?
1. Change in magnetic field produces induced current.
2. Flow of current in a conductor produces magnetic field.
3. Magnetic field related to coil can be produced by motion between conductor and coil.

Consider the following statements.
A Simple Pendulum is set into oscillation. Then,
1. the acceleration is zero when the bob passes through the mean position.
2. in each cycle the bob attains a given velocity twice.
3. both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation.
4. the amplitude of oscillation of the simple pendulum decreases with time.
Which of these statements are correct?

Match the following Types of mechanism Motion achieved P. Scott Russel mechanism 1. Intermittent motion Q. Geneva mechanism 2. Quick return motion R. Off set slider crank mechanism 3. Simple harmonic motion S. scotch Yoke mechanism 4. Straight line motion

Assertion (A): An on-off controller gives rise to self-sustained oscillation in output. Reason (R): Location of a pair of poles on the imaginary axis gives to self-sustained oscillation is output.

State whether the following statement is true or false. “In Abrasive jet machining, commercial grades powders can be used for machining.”