A taper roller bearing used in a windmill has a dynamic load capacity of 26 kN. The desired life for 90% of the bearings is 8490h and the speed is 350 rpm. The rated bearing life(L10) in millions of revolutions is . O a. 509.40 O b. 178290.00 O c. 17829.00 O d. 178.29 In a machine, the maximum torque transmitted by a shaft exceed by 23 % the actual torgue. A power of 3 kW has to be transmitted to another unit at a speed of 650 rpm. What should be the value of Maximum torque ? The maximum torque transmitted in N-m, When a component is subjected to fatigue loading, the endurance limit is the criterion for failure Select one: O True O False If "g" is the notch sensitivity, K, fatigue stress concentration factor, and k, the theoretical stress concentration factor. Identify the correct relation relating to these factors. (Ke-1)+(q)=(Kf - 1) O b. (K-1)=(Kf -1)*q O a. O c. (K-1)*(q)=(Kf -1) O d. (K,-1)-(q)=(Kf -1)
A taper roller bearing used in a windmill has a dynamic load capacity of 26 kN. The desired life for 90% of the bearings is 8490h and the speed is 350 rpm. The rated bearing life(L10) in millions of revolutions is . O a. 509.40 O b. 178290.00 O c. 17829.00 O d. 178.29 In a machine, the maximum torque transmitted by a shaft exceed by 23 % the actual torgue. A power of 3 kW has to be transmitted to another unit at a speed of 650 rpm. What should be the value of Maximum torque ? The maximum torque transmitted in N-m, When a component is subjected to fatigue loading, the endurance limit is the criterion for failure Select one: O True O False If "g" is the notch sensitivity, K, fatigue stress concentration factor, and k, the theoretical stress concentration factor. Identify the correct relation relating to these factors. (Ke-1)+(q)=(Kf - 1) O b. (K-1)=(Kf -1)*q O a. O c. (K-1)*(q)=(Kf -1) O d. (K,-1)-(q)=(Kf -1)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Transcribed Image Text:A taper roller bearing used in a windmill has a dynamic load capacity of 26 kN. The desired life for 90% of the bearings is 8490h and the speed is 350 rpm. The rated bearing life(L10) in millions of revolutions is .
O a. 509.40
O b. 178290.00
O c. 17829.00
O d. 178.29
In a machine, the maximum torque transmitted by a shaft exceed by 23 % the actual torgue. A power of 3 kW has to be transmitted to another unit at a speed of 650 rpm. What should be the value of Maximum torque ?
The maximum torque transmitted in N-m,
When a component is subjected to fatigue loading, the endurance limit is the criterion for failure
Select one:
O True
O False
If "g" is the notch sensitivity, K, fatigue stress concentration factor, and k, the theoretical stress concentration factor. Identify the correct relation relating to these factors.
(Ke-1)+(q)=(Kf - 1)
O b. (K-1)=(Kf -1)*q
O a.
O c.
(K-1)*(q)=(Kf -1)
O d. (K,-1)-(q)=(Kf -1)
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