Question

In: Mechanical Engineering

QUESTION 1 Which components form the interface between the electronic signal processor (data processing) and the...

QUESTION 1

Which components form the interface between the electronic signal processor (data processing) and the actual process (mechanical motion)?

		Sensors
		Actuators
		A/D converters
		D/A converters

QUESTION 2

Design selection of appropriate actuator is determined by operating conditions which can be:

		Installation space
		Required force/travel characteristic curve
		Dynamic response
		All of the above.

QUESTION 4

Which of the following motors are inexpensive and used in the door locks, window lifts, antenna retractor, anti-lock braking systems and cordless hand drill?

		Permanent magnet DC motor
		Brushed DC motor
		Brushless DC motor
		Stepper motors

QUESTION 4

Which of the following motors are inexpensive and used in the door locks, window lifts, antenna retractor, anti-lock braking systems and cordless hand drill?

		Permanent magnet DC motor
		Brushed DC motor
		Brushless DC motor
		Stepper motors

QUESTION 5

Which of the following motors are used when you need a precise speed control such as the one in the laser printers and photocopiers?

		Permanent magnet DC motor
		Brushed DC motor
		Brushless DC motor
		Stepper motors

QUESTION 6

Torque is proportional to the:

		Current flowing through the motor
		Resistance in the motor windings
		Voltage at the commutator rings
		None of the above.

QUESTION 7

Stepper motor with 100 steps has which resolution?

		1 degrees
		1.8 degrees
		2 degrees
		3.6 degrees

QUESTION 8

Pulse with modulation is achieved with the:

		Square wave pulse
		Triangle wave pulse
		One side only wave pulse
		None of the above.

QUESTION 9

Stepper motors can be used in the following industrial applications:

		High speed pick and place equipment
		Multi-axis machine CNC machines
		Directly driving lead screws or ballscrews
		All of the above.

QUESTION 10

If you have 10 V pulse with modulation signal provided to step motor, what is the duty cycle you need to have to achieve power of 2 V?

		20 %
		25 %
		50 %
		75 %

Expert Solution

samet mamat answered 3 years ago

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