10 is the basic elements of manufacture. C. mechanism 2. The contact type of kinematic pair between two links is point or line part В. link D. machine contact. This kinematic pair is A. high pair C. planar pair B. low pair D. spatial pair 3. A mechanism has 7 links, and there are instant centers in this mechanism. A. 42 В. 21 С. 14 D. 28
10 is the basic elements of manufacture. C. mechanism 2. The contact type of kinematic pair between two links is point or line part В. link D. machine contact. This kinematic pair is A. high pair C. planar pair B. low pair D. spatial pair 3. A mechanism has 7 links, and there are instant centers in this mechanism. A. 42 В. 21 С. 14 D. 28
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:10
is the basic elements of manufacture.
C. mechanism
2. The contact type of kinematic pair between two links is point or line
-- part
B. link
D. machine
...
contact. This kinematic pair is
A. high pair
B. low pair
C. planar pair
D. spatial pair
3. A mechanism has 7 links, and there are
instant centers in
this mechanism.
А. 42
В. 21
С. 14
D. 28
4.The standard center distance of a pair of gears
equal to the
sum of two reference circles radii.
A. must be B. may be
C. must not be
5. If the teeth number of a standard spur gear is 20, this gear
avoid cutter interference,
C. can't
6. In a crank-slider mechanism, if the average velocities of outgoing
stroke and returning stroke are the same, the coefficient of travel
A. isn't sure to
В. сan
speed variation
А. К%3D1
В. К>1
C. K<1
D. K=2
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