Skip to main content

Questions of Reliability

ASSIGNMENTS
UNIT I
1.      What is Reliability?
2.      Define the MTTF & MTBF?
3.      What is Weibull distribution?
4.      How can maintenance affect the life cycle cost for any plant? 
5.      Explain the relationship between the binomial & Poisson distribution in reliability?

UNIT II
1.      Explain the methods which are used to calculate system reliability in complex configuration?
2.      Explain K-out-of-m systems with examples.
3.      How would you formulate your maintenance strategy for effective maintenance planning?
4.      Explain the methods which are used to calculate system reliability in complex configuration.
5.      What is parallel configuration? Calculate the probability of parallel configuration for n units.
UNIT III
1.      What do you understand by a shut down maintenance?
2.      Explain the important features of a shut down program.
3.      Explain the difference between predictive and preventive maintenance?
4.      Explain breakdown maintenance?
5.      What is the difference between predictive and preventive maintenance?
6.      Why is maintenance important in industry? State the various objective of maintenance.

UNIT IV
1.      What are the condition monitoring methods? List the various methods ?
2.      What do you understand by lubricating monitoring techniques?
3.      Explain corrosion monitoring technique?
4.      Define TPM?
5.      Discuss the applications of visual control in maintenance with examples.

UNIT V

1.      What are the different techniques of condition monitoring? Explain one in brief?
2.      Explain reliability centered maintenance.
3.      Explain the term FMEA with a neat sketch ? What are the effects of failure?
4.      Briefly explain the method of risk priority number in analyzing the criticality of a subsystem?

5.      What is CBM? Enumerate its benefits?


Iimportant questions
Q.1      (a) Explain the relationship between reliability, availability and        maintainability.
            (b) Draw and explain the failure rate curve for an industrial product.

Q.2      (a) A system consists of four identical subsystems in parallel. What should             be the reliability of each subsystem. If the system reliability is to be equal       to 0.99.
            (b) Calculate the reliability of system show. In fig. 1. In which elements     reliability is identical
Q.3      (a) How would you formulate your maintenance strategy for effective        maintenance planning?
            (b) Explain the difference between predictive and preventive maintenance.

Q.4      (a) What is vibration analysis and what are its principles? Hoe it is used      for equipment health monitoring?
             (e) What do you understand by lubrication monitoring techniques?             Explain the methods for lubrication monitoring.


Q.5      (a) Explain the term FMECA With the neat sketch. What are the effects of            failure?
(b) Briefly explain the methods of risk priority number in analyzing the       criticality of a subsystem.
Q6       (a) Define the term overall Equipment Effectiveness (OEE) and establish   relation between quality, reliability, maintainability and  availability.
            (b) Explain the major functions of maintenance section in an organization      along with its objectives. What is design out maintenance?  
Q.7        (a) explain reliability centered maintenance? Explain its working with the help of  flow diagram?
              (b) Explain the concept, evolution, and objective of total productive          maintenance?
Q.8.        (a) Discuss the corrosion monitoring procedure and possible outcome of such analysis. As an aid to identify the need of maintenance?

              (b) What is vibration analysis and what is its principle? How is it used for equipment monitoring?




Comments

Popular posts from this blog

Strength of Material Important Questions

UNIT - 1 SIMPLE STRESSES & STRAIN 1.A load of 5 KN is to be raised with the help of a steel wire. Find the diameter of steel wire, if the maximum stress is not to exceed 100 MN/m2.[ 7.28 mm] 2.A circular rod of diameter 20 m and 500 m long is subjected to tensile force of 45kN. The modulus of elasticity for steel may be taken as 200 KN/m2. Find stress, strain and elongation of bar due to applied load.[ 143.24 N/m2, 0.000716, 0.36] 3.Find the minimum diameter of the steel wire, which is used to raise a load of 4000N if the stress in the rod is not to exceed 95 MN/m2 . [d=7.32 mm] 4. Find the young modulus of a brass rod of diameter 25mm and of length 250mm which is subjected to a tensile load of 50kN when the extension of the rod is equal to 0.3mm. [E = 84.88 X 109N/m2] 5.A hollow cast-iron cylinder 4 m long, 300 mm outer diameter, and thickness of metal 50 mm is subjected to a central load on the top when standing straight. The stress produced is 75000 kN/m2. Assume Young's modulus …

Analysis of Bar of Uniform Strength