69. The worm gear of a 40:1 worm gear set rotates at 3600 rpm. If the worm wheel diameter is 2.25 inch, what is the pitch line velocity of the worm wheel in fpm? a. 33 b. 42 71. What is the metal area (in in²) of a 1/2 inch 6 x 19 wire rope ? a. 0.100 b. 0.125 c. 53 d. Answer is not among the choices a. b. C. d. 74. An annular plate clutch is required to have a frictional torque of 25 ft-lbs. If it rotates at 2000 rpm and requires a wear rating of 0.10 hp/in², determine its minimum area in in². a. 95.2 c. 110 b. 101 d. 118 Leaf Drawbar 0.150 0.175 75. Which mechanical spring is used to exert a pulling force only? C. Garter d. Both a and b

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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69. The worm gear of a 40:1 worm gear set rotates at 3600 rpm. If the worm wheel diameter is 2.25 inch, what is
the pitch line velocity of the worm wheel in fpm?
a.
33
b. 42
a. 0.100
b. 0.125
71. What is the metal area (in in²) of a 1/2 inch 6 x 19 wire rope ?
c.
d.
0.150
0.175
a.
95.2
b. 101
C.
d.
74. An annular plate clutch is required to have a frictional torque of 25 ft-lbs. If it rotates at 2000 rpm and
requires a wear rating of 0.10 hp/in², determine its minimum area in in².
a.
b.
53
Answer is not among the choices
Leaf
Drawbar
75. Which mechanical spring is used to exert a pulling force only?
Garter
Both a and b
C. 110
d.
118
C.
d.
Transcribed Image Text:69. The worm gear of a 40:1 worm gear set rotates at 3600 rpm. If the worm wheel diameter is 2.25 inch, what is the pitch line velocity of the worm wheel in fpm? a. 33 b. 42 a. 0.100 b. 0.125 71. What is the metal area (in in²) of a 1/2 inch 6 x 19 wire rope ? c. d. 0.150 0.175 a. 95.2 b. 101 C. d. 74. An annular plate clutch is required to have a frictional torque of 25 ft-lbs. If it rotates at 2000 rpm and requires a wear rating of 0.10 hp/in², determine its minimum area in in². a. b. 53 Answer is not among the choices Leaf Drawbar 75. Which mechanical spring is used to exert a pulling force only? Garter Both a and b C. 110 d. 118 C. d.
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