Question 61 : The need of assuming non-linear element as linear:
1. Simplicity of analysis and accuracy of results
2. Ease of calculations
3. Less time consuming
4. Mathematical tool available
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Question 62 : When comparing operating cost of hydraulic systems to pneumatic systems, generally they are.
1. More expensive to operate
2. Less expensive to operate
3. Cost is same to operate
4. Cost is not required
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Question 63 : When the piston area of the cylinder is connected to the atmosphere, the piston of the single-acting cylinder is pressed by the spring to the ________________
1. Cylinder center
2. Cylinder down
3. Cylinder bottom
4. Cylinder upper
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Question 64 : A much lower inertia in Surface wound armature type is obtained by placing the winding on a non-magnetic cylinder which rotates in annular space between permanent magnet stator and stationary rotor.
1. True
2. False
3.
4.
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Question 65 : Pneumatic systems usually do not exceed:
1. 1 hp
2. 1 to 2 hp
3. 2 to 3 hp
4. 4 to 5 hp
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Question 66 : The rotational speed of a given stepper motor is determined solely by the
1. Shaft load
2. Step pulse frequency
3. Polarity of stator current
4. Magnitude of stator current.
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