this is 1 question with multiple parts

Reliability Question 1 (1 point) You have two components working in parallel (i.e. one is a backup to the other). One has a reliability of 0.55 and the other has a reliability of 0.60. What is the reliability of this part of the whole system? Answer to three decimal places. Your Answer: Your Answer Question 2 (1 point) You have three components working in parallel (i.e. two are backups to the first). They have reliabilities of 0.55, 0.65, and 0.65. What is the reliability of this part of the whole system? Answer to two decimal places. Your Answer: Your Answer Question 3 (1 point) You have four components in a system with two working in parallel (i.e. one is a backup to the other) and the other two in sequence to the first two (the top of the system in the questions. The first two have reliabilities of 0.55 and 0.6 and the next two have reliabilities of 0.87 and 0.94. What is the reliability of this part of the whole system? Answer to three decimal places. Your Answer: Your Answer Question 4 (1 point) With the booming world economy, the 2X4 lumber consumed in the construction industry is considerably increasing. To obtain the 2x4's that meet the quality requirements the milling system for 2x4's needs to be effective. The following reliability diagram is established. What is the reliability of the milling system? For clarity, the elements which are stacked (with double arrows coming in) are considered backups (0.55 and 0.6 or 0.64, 0.65, and 0.65 for example) while others are considered series. Enter the whole system reliability to three decimal places. Question 5 (1 point) A system for milling 2x6's has four sensitive components connected in series with reliabilities of 0.92, 0.?2, 0.84 and 0.85. What is the reliability of this original system? Answer to three decimal places. Your Answer: Your Answer D Add attachments to support your work Question 6 (1 point) According to the quality department of the lumber mill, the current system lacks reliability. At the manufacturing plant, the engineers have proposed to improve the reliability of the system. The new system still has the same four components, but the system has a backup for each component. The four backup components all have a reliability of 0.60. What is the reliability of the new (proposed) system? Your Answer: Your Answer D Add attachments to support your work Question 7 (1 point) What is the reliability of the new (proposed) system? If you pay a premium, the manufacturer can improve all four of the backup units to 0.8? (the third option). What is the reliability of the third option? Your Answer: Your Answer D Add attachments to support your work 0.55 0.87 0.94 0.6 0.94 0.64 0.93 0.65 0.65