对应课程:点击查看
起止时间:2020-05-01到2020-09-01
更新状态:已完结
Project 1：Programming and Machining of Stepped Shaft Project 1 Study Questions
1、 A lathe has the following axes:
A: X, Y&Z
B: X& Y only
C: X& Z only
D: Y&Z only
答案: X& Z only
2、 On a two axis turning center the diameter controlling axis is:
A: B
B: A
C: X
D: Z
答案: X
3、 The letter addresses used to identify axes of rotation are:
A: U, V&W
B: X, Y&Z
C: A, Z&X
D: A, B&C
答案: A, B&C
4、 In NC (tape) controlled machines, the M02 command rewinds the tape to its start. How is a CNC machine command to return the program to its start?
A:M03
B: M08
C: M30
D:M05
答案: M30
5、 The default (at machine start-up) feed rate on lathes is typically measured in
A: Cutting Speed
B:Inches per revolution in/rev.
C:Inches per Minute in/min
D: Constant Surface Speed
答案: Inches per revolution in/rev.
6、 What other program word is necessary when programming G01 linear interpolation?
A:S
B:F
C:T
D:H
答案: F
7、 Programming is a method of defining tool movements through the application of numbers and corresponding coded letter symbols.
A:正确
B:错误
答案: 正确
8、 A program block is a single line of code followed by an end-of-block character.
A:正确
B:错误
答案: 正确
9、 Each block contains one or more program words.
A:正确
B:错误
答案: 正确
10、 The letter address, O is used to identify the program number and has no other use in programming.
A:正确
B:错误
答案: 正确
11、 In programming,tool function is commanded by the four digits that follow the letter address T. (Example T0404). What do these two sets of numbers refer to?
答案: The first two digits refer to the geometry offset and the second two are to the wear offset.
Project 2：Programming and Machining of Tapered Shaft Project 2 Study Questions
1、 What two letters identify the incremental distance from the starting point to the center in G02/G03 programming?
A:I and J
B:I and K
C: J and K
D: X and R
答案: I and K
2、 Which of the following are modal commands?
A:G01
B:G00
C:F
D:All of the above
答案: All of the above
3、 When programming an arc an additional method exists that does not use I J and K. Which program word is used?
A:A
B:B
C:C
D:R
答案: R
4、 What character is used in the program at the end of a block?
A:;
B:/
C:(
D:)
答案: ;
5、 When the machine is turned on for the first time,it must be sent to its home position.
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