1) Which among the below mentioned types of redundancy exhibits maximum failure rate?
a. Cold standby
b. Warm or Tepid
c. Hot or Active
d. All of the above
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Answer
Explanation
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ANSWER: Hot or Active
Explanation:
No explanation is available for this question!
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2) Which among the following exhibits inversely proportional relationship with the reliability?
a. Production cost
b. Design and development cost
c. Maintenance and repair cost
d. All of the above
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Answer
Explanation
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ANSWER: Maintenance and repair cost
Explanation:
No explanation is available for this question!
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3) What is the failure cost of a product possessing reliability R=1?
a. Zero
b. Unity
c. Infinity
d. None of the above
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Answer
Explanation
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ANSWER: Zero
Explanation:
No explanation is available for this question!
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4) What is /are the major purpose/s of using a bath tub curve?
a. To determine the capital maintenance in defense equipments
b. To compute lifts in the distillation column
c. To decide the maintenance of equipment
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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5) Which method prevents the operating condition that exceeds beyond 50% of the maximum rating in order to improve the system reliability?
a. Parts Improvement Method
b. Structural Redundancy
c. Effective & creative Design
d. Derating of components
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Answer
Explanation
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ANSWER: Derating of components
Explanation:
No explanation is available for this question!
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6) Which type of availability deals with the probability of system operation and functioning at the requisite level in an ideal environment without any consideration of maintenance?
a. Inherent availability
b. Achieved availability
c. Operational availability
d. None of the above
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Answer
Explanation
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ANSWER: Inherent availability
Explanation:
No explanation is available for this question!
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7) What would be the composite failure rate of a system comprising one VLSI microprocessor with 6 SSI ICs and 10 resistors corresponding to the data given below?
Assume a single board system
PCB 2000 FIT
SSIC 70 FIT
R 20 FIT
VLSI microprocessor 600 FIT
a. 1250 FIT
b. 2400 FIT
c. 3220 FIT
d. 4520 FIT
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Answer
Explanation
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ANSWER: 3220 FIT
Explanation:
No explanation is available for this question!
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8) What would happen, if an equipment possesses reliability and maintainability to the maximum extent in accordance to MTTR?
a. Failure rate is higher & downtime is longer
b. Failure rate is lower & downtime is longer
c. Failure rate is higher & downtime is shorter
d. Failure rate is lower & downtime is shorter
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Answer
Explanation
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ANSWER: Failure rate is lower & downtime is shorter
Explanation:
No explanation is available for this question!
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9) On which factors does the down-time of an equipment at the maintainability phase, depend?
a. Design
b. Installation
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Both a and b
Explanation:
No explanation is available for this question!
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10) How is the reliability of a product specified?
a. Always less than 1
b. Always greater than 1
c. Always equal to 1
d. None of the above
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Answer
Explanation
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ANSWER: Always less than 1
Explanation:
No explanation is available for this question!
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