Interfacing motors in 8051

Interfacing motors in 8051

Time limit: 0

Quiz Summary

0 of 20 Questions completed

Questions:

Information

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

0 of 20 Questions answered correctly

Your time:

Time has elapsed

You have reached 0 of 0 point(s), (0)

Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)

Categories

Not categorized 0%

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Current
Review
Answered
Correct
Incorrect

Question 1 of 20
1. Question
1. What is dc motor
- a. A DC motor is any of a class of rotary electrical motors that converts direct current electrical energy into mechanical energy
- b. A DC motor is any of a class of rotary electrical motors that converts direct current mechanical energy into electrical energy
- c. Both
- d. None of this
Correct
Incorrect
Question 2 of 20
2. Question
2. How to change speed of dc motor
- a. By using a variable voltage supply
- b. By changing strength of current in its field windings
- c. Both
- d. None of this
Correct
Incorrect
Question 3 of 20
3. Question
3. The main purpose of interfacing with 8051 is________
- a. To reduce power
- b. To control cast
- c. To control the speed of motor
- d. None of this
Correct
Incorrect
Question 4 of 20
4. Question
4.Which controller is used to interface 8051 with dc motor
- a. ULN2003A
- b. L293D
- c. AR1100
- d. None of this
Correct
Incorrect
Question 5 of 20
5. Question
6. How many poles dc motor contains?
- a. 2
- b. 4
- c. 6
- d. 8
Correct
Incorrect
Question 6 of 20
6. Question
6. Specifications dc motor driver circuit
- a. 600 MA per channel
- b. 4.5V to 36V voltage range
- c. 16 pins
- d. 60MA
- e. 3.5 V to 25V voltage range
Correct
Incorrect
Question 7 of 20
7. Question
7. What is four quadrant dc-motor?
- a. The motor which operates clock wise and anti clockwise
- b. The motor which operates only clock wise
- c. The motor which operates only anti-clock wise
- d. The motor which operates in forward break, reverse break, clock and anti clock wise
Correct
Incorrect
Question 8 of 20
8. Question
8. Applications of dc motors
- a. Home appliances
- b. Industrial applications
- c. Agriculture fields
- d. All the above
Correct
Incorrect
Question 9 of 20
9. Question
9.Types of dc motor
- a. Self excited
- b. Separately excited
- c. Permanent magnet
- d. All the above
Correct
Incorrect
Question 10 of 20
10. Question
10. based on__________ rule dc-motor
- a. Fleming’s right hand rule
- b. Fleming’s left hand rule
- c. Both
- d. None of this
Correct
Incorrect
Question 11 of 20
11. Question
11. Brushless dc –motor is_________
- a. Series wound dc-motor
- b. Shunt dc-motor
- c. Self excited motor
- d. Stepper motor
Correct
Incorrect
Question 12 of 20
12. Question
12. Stepper motor which is used to inter facing of 8051, which takes________ steps for one ration(360’)
- a. 300
- b. 400
- c. 100
- d. 200
Correct
Incorrect
Question 13 of 20
13. Question
13. For one step how much of angle the stepper motor will rotates
- a. 2.1
- b. 1.9
- c. 1.8
- d. 1.6
Correct
Incorrect
Question 14 of 20
14. Question
14. ___________ are the types of stepper motor
- a. Uni-polar
- b. Bi- polor
- c. Try-polor
- d. None of this
Correct
Incorrect
Question 15 of 20
15. Question
16. To rotate 90 degree’s how steps are required
- a. 50
- b. 60
- c. 90
- d. 45
Correct
Incorrect
Question 16 of 20
16. Question
16. ____________ is the driver circuit of stepper motor
- a. ULN2003A
- b. L293D
- c. AR1100
- d. None of this
Correct
Incorrect
Question 17 of 20
17. Question
17. Working modes of Uni- Polar stepper motor
- a. Wave drive
- b. full drive
- c. half drive
- d. None of this
Correct
Incorrect
Question 18 of 20
18. Question
18. Specifications of interfacing driver of stepper motor with 8051
- a. 500 mA rated collector current (single output)
- b. 50 V output (there is a version that supports 100 V output)
- c. Includes output flyback diodes
- d. Inputs compatible with TTL and 5-V CMOS logic
- e. All of the above
Correct
Incorrect
Question 19 of 20
19. Question
19. Advantages of stepper motor
- a. Low cost for control achieved
- b. High torque at startup and low speeds
- c. Ruggedness
- d. Simplicity of construction
Correct
Incorrect
Question 20 of 20
20. Question
20. Applications of stepper motor
- a. stepper motors are used in floppy disk drives, flatbed scanners, computer printers, plotters, slot machines, image scanners, compact disc drives
- b. Intelligent lighting, camera lenses
- c. CNC machines and, more recently, in 3D printers
- d. All the above
Correct
Incorrect

Login

Accessing this course requires a login. Please enter your credentials below!

Username or Email Address

Password

Remember Me

Forgot Password?

Lost Your Password?

Register

Don't have an account? Register one!

Register an Account