The total completion time for a project network analysis is determined by the critical activity path terminating at_________________?
Show answer Hide answer
Answer: A. early finish
Explanation
The total completion time for a project network analysis is determined by the critical activity path terminating at its early finish. The early finish time of the final critical activity dictates the absolute minimum duration required to complete the entire project. Any delay in this terminal early finish date directly extends the overall project completion schedule. Critical path method calculations involve forward and backward passes to determine earliest and latest event times for all network tasks. The critical path represents the longest sequence of dependent activities connecting the project start to its final completion milestone. Network analysis assumes that all preceding tasks must finish successfully before final project deliverables can be realized.
Option B early start marks the beginning of tasks rather than the terminal completion milestone determining total project duration. Option C late start represents the latest allowable commencement time for an activity without adding project schedule delay. Option D late finish indicates the final allowable completion boundary for non-critical tasks possessing available schedule float.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. A refrigerating system operates with a suction pressure of 10 kg/cm² gauge and condensing pressure of 67 kg/cm². What is the refrigerant________________?
Show answer Hide answer
Answer: B. Carbon dioxide
Carbon dioxide operating pressures are notably high, with typical suction and condensing pressures matching these values in CO2 refrigeration systems. Refrigeration cycles utilizing carbon dioxide operate at exceptionall...
Q2. System accumulators must possess sufficient internal volume to hold a refrigerant charge of at least_________________?
Show answer Hide answer
Answer: C. 50%
System accumulators are specifically designed to safely hold at least fifty percent of the total refrigerant charge. This volumetric capacity prevents liquid refrigerant from flooding back into the compressor during load...
Q3. Within value engineering and analysis practices, 'value' is formally defined as_____________________?
Show answer Hide answer
Answer: E. function/cost
Value engineering formally defines value as the ratio of function to cost. This mathematical ratio balances functional performance against total lifecycle financial costs. Increasing value requires either enhancing funct...
Q4. Recrystallization temperature is characterized as the threshold________________?
Show answer Hide answer
Answer: B. at which new spherical crystals first begin to form from the old deformed one when a strained metal is heated
Recrystallization temperature marks the point where new strain-free crystals nucleate and grow within a previously deformed metal. Heating a plastically deformed metal past its recrystallization threshold triggers the fo...
Q5. Anhydrous ammonia as a working fluid is __________________?
Show answer Hide answer
Answer: D. highly toxic and inflammable
Anhydrous ammonia is classified as a hazardous chemical because it is both toxic and flammable. Inhalation of high concentrations poses severe health risks, while specific air mixtures can ignite readily. Safety standard...
Q6. An ammonia-absorption refrigeration cycle requires an external input of__________________?
Show answer Hide answer
Answer: A. very little work input
Ammonia absorption systems require very little mechanical work input from a pump. Thermal energy input replaces the large mechanical compressor in vapor compression cycles. Pumping liquid solution requires minimal electr...