Bissoy.com
Doctors Medicines MCQs Q&A

Consider the following pairs: 1. Difference between total float and free float: Interfering float 2. Sum of independent float and tail slack: Free float 3. Sum of independent float, tail slack, and interfering float: Total float Which of these pairs are correctly matched?

Consider the following pairs: 1. Difference between total float and free float: Interfering float 2. Sum of independent float and tail slack: Free float 3. Sum of independent float, tail slack, and interfering float: Total float Which of these pairs are correctly matched? Correct Answer (1), (2) and (3)

Explanation

Total float: (FT)

It is the amount of time that the completion time of an activity can be delayed without affecting project completion time.

Free float: (FF)

It is the amount of time that the activity completion time can be delayed without affecting the earliest start time of the immediate successor activities in the network.

FF = FT - Sj

Interfering Float: (FIN)

  • The maximum amount by which an activity can be delayed without delaying the project but will cause delay to the Early Start of some following activity
  • It is the difference between total float and free float. It is thus equal to the head event slack.

FIN = FT - FF = Sj (Statement 1 is correct)

Where, FT is Total Float, FF is Free float

Independent Float: (FID)

The amount by which an activity can be delayed without delaying the project; even if all predecessors are at Late Finish and all Successors are at Early Start.

FID = FF - Si = FT - Sj - Si 

⇒ FID + Si = FF (Statement 2 is correct)

S i is Tail event Slack

Sj is Head Event Slack 

In the statement (3) It is asked Sum of independent float, tail slack, and interfering float: Total float

Let's Check

FID + Si + FIN 

= (FF - Si ) + Si + (FT - FF)

= FT (Total Float) ∴ Statement 3 is correct.

Related Questions

An aircraft with wing aft tail configuration has tail efficiency of 0.95 and tail volume ratio of horizontal tail is 0.7. Determine pitching moment coefficient slope for the tail. Given lift curve slope of tail is 4.2 per rad. Consider downwash derivative as 0.6.
Consider the following statements:
In the critical path method of construction planning, Free Float can be.
1. Greater than Total Float.
2. Greater than Independent Float
3. Equal to Total Float.
4. Less than Independent Float
To pass a test, a candidate needs to answer at least 2 out of 3 questions correctly. A total of 6,30,000 candidates appeared for the test. Question A was correctly answered by 3,30,000 candidates. Question B was answered correctly by 2,50,000 candidates. Question C was answered correctly by 2,60,000 candidates. Both questions A and B were answered correctly by 1,00,000 candidates. Both questions B and C were answered correctly by 90,000 candidates. Both questions A and C were answered correctly by 80,000 candidates. If the number of students answering all questions correctly is the same as the number answering none, how many candidates failed to clear the test?
In an examination, a student can choose the order in which two questions (QuesA and QuesB) must be attempted. - If the first question is answered wrong, the student gets zero marks. - If the first question is answered correctly and the second question is not answered correctly, the student gets the marks only for the first question. - If both the questions are answered correctly, the student gets the sum of the marks of the two questions. The following table shows the probability of correctly answering a question and the marks of the question respectively.  question Probability of answering correctly marks QuesA 0.8 10 QuesB 0.5 20 Assuming that the student always wants to maximize her expected marks in the examination, in which order should she attempt the questions and what is the expected marks for that order (assume that the questions are independent)? 
A typical jet transport aircraft needs to be sized based on following parameters. Wing area S=50m2, MAC=5m. If tail volume coefficient of horizontal tail is 1 and tail area is 10m2 then, find the required tail moment arm.
Below a question is given with two statements (I) and (II). These statements may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Statements: I. The prices of vegetables have been increased considerably during these winters. II. There is a tremendous decrease in the temperature during these winters thereby damaging crops greatly.
Consider the following recursive Java function f that takes two long arguments and returns a float value: public static float f (long m, long n) { float result = (float)m / (float)n; if(m < 0 | n < 0) return 0.of; else result - = f(m * 2,n * 3); return result ; } Which of the following real values best approximates the value of f (1, 3) ?
The question below is followed by statements I, II, and III. You have to determine whether the data given in the statement is sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. The difference between the compound interest and simple interest on a certain sum at a certain rate of interest per annum for two years is 204.20. What is the amount received on the sum of compound interest at the same rate of interest at the end of three years. I. The difference between the compound interest and the simple interest on the sum for three years is 804.258. II. The sum becomes Rs. 14528 at the end of one year. III. The compound interest on the sum for two years is 7% more than the simple interest on the sum for two years.
Two statements (I) and (II) are given below. These statements may be either independent causes or may be effects of independent causes or a common cause.One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. I: Sales of the inlay product, which has a Geographic Indication (GI) tag, has taken a hit, say the craftsmen. II: Inlay work is done on tables and it draws a 28% GST as these products are clubbed with furniture. The tax outgo has doubled
Below each question are given two statements (I) and (II). These statements may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statement. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Statement I: India has become a polio free nation. Statement II: Government led extensive campaigns in the past decade spreading awareness about vaccination from polio.