A standby mechanical system is composed of three independent and identical motors (i.e., one unit operating...
A standby mechanical system is composed of three independent and identical motors (i.e., one unit operating and the other two on standby). The motor constant failure rate is 0.0009 failures/hour. Calculate the system reliability for a 200-hour mission for this mechanical system.
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A standby mechanical system is composed of three independent and
identical motors (i.e., one unit operating...
5. Consider a three-component standby system in which two units are normally on-line. Both on-lin...
5. Consider a three-component standby system in which two units are normally on-line. Both on-line units must fail before the standby unit is placed on-line. Draw an RBD of the system. Compute the system reliability function and the MTTF. Assume no failures in standby and a constant failure rate of A when the unit is on-line.
5. Consider a three-component standby system in which two units are normally on-line. Both on-line units must fail before the standby unit is placed...
A system composes of three components. These components have constant failure rates of 0.0004, 0....
A system composes of three components. These components have constant failure rates of 0.0004, 0.0005, 0.0003 failures per hour. The system will stop working, if any one of its components fails. Calculate the following: 1. The reliability of the system at 2500 hour running time? 2. The system hazard rate? 3. Mean time to failure of the system?
Question 2 Two non-identical amplifiers are required to run the traffic of a satellite at full...
Question 2 Two non-identical amplifiers are required to run the traffic of a satellite at full load. Assume that amplifier 1 and amplifier 2 have constant failure rates of 2 = 0.0001 failure/hour and l = 0.0002 failure/hour respectively. Calculate this series system mean time to failure and reliability for a 100 hour mission assuming both amplifiers start operating at t=0. (Use back side of the paper to solve Page 2 of 5
Another system composes of four items and each one of these items has constant failure rate of 0....
Another system composes of four items and each one of these items has constant failure rate of 0.0008 failures per hour. These items when they work the system will work. However, when any one of the system's items fails, the whole system will come to a complete halt. Calculate the following: 1. The reliability of the system at 2000 hour running time? 2. The system hazard rate? 3. Mean time to failure of the system?
(1)The field test data in respect of 172 components is as given below. In the life-testing...
(1)The field test data in respect of 172 components is as given below. In the life-testing of 100 specimens of a particular device, the number of failures during each time interval of twenty hours is shown in Table below. Estimate and Plot: the hazard function, failure density and reliability function. Time/Hours Failure 0-1000 59 1000-2000 24 2000-3000 3000-4000 4000-5000 5000-6000 29 30 17 13 (1) calculate the reliability of the system shown in the figure below 0.8 5 0.8 0.9...
Problem 4. A three-phase system is composed of a gencrator, two transformers, a trans- mission line...
Problem 4. A three-phase system is composed of a gencrator, two transformers, a trans- mission line and a load as shown in Figure1. Parameters of the system are given as G1 : 20kV (line to line), Y-connected. 200M VA. Xo 1Ω.x.-15Q,Xy-3D Ti : 20/200kV (line to line), 250M VA, Xeqー0.1p.u.,名-0.01p.u. Line 1: 500 T; : 200/15kV (line to line), 220M VA, Xcqー0.15p.u.. Zn-0.02p-u. Load: Δ-connected, 5t.j5Ω Consider the nominal values of transformer Ti as the base values and, e Draw...
Problem One: Variance Analysis The Graves Manufacturing Company's costing system has two direct-cost categories: direct materials...
Problem One: Variance Analysis The Graves Manufacturing Company's costing system has two direct-cost categories: direct materials and direct manufacturing labor. Manufacturing overhead (both variable and fixed) is allocated to products on the basis of standard direct manufacturing labor-hours (DLH). At the beginning of 2017, the controller adopted the following standards for its manufacturing costs: 5 lb. at $5 per lb. 3 hrs. at $15 per hr. Direct materials Direct manufacturing labor Manufacturing overhead: Variable Fixed $7 per DLH $8 per...
Madina Electrical Corporation manufactures electric motors for commercial use. The company produces three models called SM,...
Madina Electrical Corporation manufactures electric motors for commercial use. The company produces three models called SM, DM and HDM. The company uses a job costing system with manufacturing overhead applied on the basis of direct labour hours. The system has been in place with little change for 30 years. Product costs and annual sales data are as follows: SM DM HDM Annual sales (units) 42500 1700 20000 Product costs: Raw material $27.50 $47.75 $73.00 Direct labour $20.00 $35.00 $35.00 Manufacturing...
(might be 1 or 2, MCQ questions were having images given with them, which we couldn't...
(might be 1 or 2, MCQ questions were having images given with them, which we couldn't insert, so ignore those questions if you cannot answer, sorry for inconveinience created, i tried to delete them but might be couldn't done all) 3) Single phase induction motors work because: a) The oscillating magnetic field can induce starting torque in a rotor. b) The oscillating magnetic field can induce running torque in a rotor. c) A capacitance or inductance can create the phase...
1. Focusing on only the inpatient care cost (i.e., ignoring operating room costs), what is the...
1. Focusing on only the inpatient care cost (i.e., ignoring
operating room costs), what is the cost of a TAH (non-oncology)
under each of the cost accounting systems? A tuboplasty? A TAH
(oncology)? What accounts for the differences?
Croswell University Hospital This report doesn't describe where our costs are generated. We're applying one standard to all patients, regardless of their level of care. What incentive is there to identify and account for the costs of each type of procedure? Unless...
5. Consider a three-component standby system in which two units are normally on-line. Both on-line units must fail before the standby unit is placed on-line. Draw an RBD of the system. Compute the system reliability function and the MTTF. Assume no failures in standby and a constant failure rate of A when the unit is on-line.
5. Consider a three-component standby system in which two units are normally on-line. Both on-line units must fail before the standby unit is placed...
Question 2 Two non-identical amplifiers are required to run the traffic of a satellite at full load. Assume that amplifier 1 and amplifier 2 have constant failure rates of 2 = 0.0001 failure/hour and l = 0.0002 failure/hour respectively. Calculate this series system mean time to failure and reliability for a 100 hour mission assuming both amplifiers start operating at t=0. (Use back side of the paper to solve Page 2 of 5
(1)The field test data in respect of 172 components is as given below. In the life-testing of 100 specimens of a particular device, the number of failures during each time interval of twenty hours is shown in Table below. Estimate and Plot: the hazard function, failure density and reliability function. Time/Hours Failure 0-1000 59 1000-2000 24 2000-3000 3000-4000 4000-5000 5000-6000 29 30 17 13 (1) calculate the reliability of the system shown in the figure below 0.8 5 0.8 0.9...
Problem 4. A three-phase system is composed of a gencrator, two transformers, a trans- mission line and a load as shown in Figure1. Parameters of the system are given as G1 : 20kV (line to line), Y-connected. 200M VA. Xo 1Ω.x.-15Q,Xy-3D Ti : 20/200kV (line to line), 250M VA, Xeqー0.1p.u.,名-0.01p.u. Line 1: 500 T; : 200/15kV (line to line), 220M VA, Xcqー0.15p.u.. Zn-0.02p-u. Load: Δ-connected, 5t.j5Ω Consider the nominal values of transformer Ti as the base values and, e Draw...
Problem One: Variance Analysis The Graves Manufacturing Company's costing system has two direct-cost categories: direct materials and direct manufacturing labor. Manufacturing overhead (both variable and fixed) is allocated to products on the basis of standard direct manufacturing labor-hours (DLH). At the beginning of 2017, the controller adopted the following standards for its manufacturing costs: 5 lb. at $5 per lb. 3 hrs. at $15 per hr. Direct materials Direct manufacturing labor Manufacturing overhead: Variable Fixed $7 per DLH $8 per...
1. Focusing on only the inpatient care cost (i.e., ignoring
operating room costs), what is the cost of a TAH (non-oncology)
under each of the cost accounting systems? A tuboplasty? A TAH
(oncology)? What accounts for the differences?
Croswell University Hospital This report doesn't describe where our costs are generated. We're applying one standard to all patients, regardless of their level of care. What incentive is there to identify and account for the costs of each type of procedure? Unless...
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