31. PIP is usually awarded for a fixed period , after which the claimant will have to re-apply if necessary. 32. Term refers to a fixed period , while tenure refers to the actual period that a person held office. 33. While they operate over a fixed period of time, they do not offer a fixed rate of return. 34. Competitors must record as many of the call signs as they can during a fixed period of time. 35. After a fixed period of time, the experiment ends, and the oxygen concentration in both vessels is measured. 36. The network would be managed by a private firm and leased for a fixed period by the government. 37. The run-up phase of the basic dual-slope design integrates the input voltage for a fixed period of time. 38. After 30 September 1982, Railcards were issued for a fixed period of 12 months from the date of issue. 39. It provides coverage for a fixed period ; if the policyholder dies in that time, the beneficiary collects the benefit. 40. Depending on the contract, the income may be paid out over a fixed period or for the purchaser's lifetime.