Tunnel inspections can be expensive, operationally difficult, with a possible loss of revenue during the inspection. The result of these approaches is that tunnel inspections get delayed, postponed and forgotten about, in some cases for generations. From an engineering standpoint, tunnel inspections are important to be performed on a regular basis. If there is a problem, and it is not observed, the problem can get worse and the repairs can end up being significantly more expensive. Problems associated with inspection are safety for the inspection party, access to confined spaces and what issues of a safety nature will the tunnel have. Imagine that you have a concrete lined, electrically driven, railroad tunnel to inspect. It provides commuter trains, on a daily basis, to a nearby city. Address the following issues. 1. What would you be looking for in the inspection of this tunnel? 2. What precautions should be addressed? 3. When will inspection time be available? 4. How do deficiencies get documented? 5. What should be done with the results of the deficiencies?

Q50;

the arrival times of vehicles at the ticket pate of a sports studium may be sumed to be Porison with a mean of ze very/h. It take an werage of 1.7 min for the necessary tickets to be bought for occupants of each car (3) What lu the expected length of queue at the ticket yato, not including the vehicle being served? (Enter your answer as the number of vehicles.) vehicles

(b) What is the probability that there are no more than 4cars at the gate, including the vehicle being served? (Enter a number as a fraction or decimal)

(c) What will be the average walting time of a vehide (in minutes, including queue and service)

Q51;

Define Labour Law. Into what branches may Labour Law be divided? What is a Trade Union? What is the form of contract of employment called? What are the obligations of an Employer? What are the obligations of an Employee? How must an employer protect an employee?

To what extent is an employer liable for the acts of an employee?

How may an employment contract be terminated? What is a Bargaining Unit? Who is a Bargaining Agent? Define - Certification of Bargaining Agents. Who certifies Bargaining Agents? What is meant by Collective Bargaining? Define Collective Agreement. What may some of the terms and conditions be in a Collective Agreement? How are disputes arising out of collective agreements settled? In what manner does conciliation resemble arbitration? What is meant by jurisdictional disputes? What is an injunction? .