GATE 2019 National Champion Test Building Materials & Cons. Management (App update required to attempt this test) for ESE & GATE CE Exams

Question 1

Which of the following is the method to determine the workability?

Question 2

Slump test cannot be not used as a workability test when?

Question 3

The composition of an air–entrained concrete is given below:
Water : 184 kg/m³
Ordinary Portland cement (OPC): 368 kg/m³
Sand : 606 kg/m³
Coarse aggregate : 1155 kg/m³
Assume the specific gravity of OPC, sand and coarse aggregate top be 3.14, 2.67 and 2.74, respectively. The air content is ________ litres/m³.

Question 4

Direction: Each of the question consist of two statements, one labeled as the ‘Statement (I)’ and the other as ‘Statement (II)’. Examine these two statements carefully and select the answer to these items using the codes given below:

Statement (I): Finer the cement, greater is the need for water for hydration and workability.
Statement (II): Bleeding of a mix occurs due to low water-cement ratio.

Question 5

A project has three activities A followed by B which is followed by C. Taking indirect cost of 25 units per week, the cost of completing the project in 15 weeks is given by?
Activity A : 10 weeks-400 units, 9 weeks-450 units, 8 weeks-500 units
Activity B : 5 weeks-200 units, 4 weeks-225 units
Activity C : 3 weeks-700 units, 2 weeks-800 units

Question 6

Which of the following is wrong in determination of expected time of a project using PERT?

Question 7

For the given project network, where numbers along various activities represent normal time.
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Find the project completion expected duration (T_e)?

Question 8

The estimated duration of times for an activity in the PERT network under the worst and the best environment are 9 days and 3 days. Expected time of activity(t_e)= 6 days. The variance of this activity in days and most likely time of activity(t_m) in days respectively are

Question 9

A project consists of 7 jobs. Jobs A and F can be started and completed independently. Jobs B and C can start only after job A has been completed. Jobs D, E and G can start only after jobs B, (C and D) and (E and F) are completed, respectively. Time estimates of all the jobs are given in the following table:

The expected completion time of the project is.

Question 10

Calcuate optimum cost for this project

Indirect cost is 500 per duration.

Question 11

A project networking is to be using PERT method. Determine the expected time (days)of the project. Following is the network given;

The optimistic time (T₀) , most likely time (T_L) and pessimistic time (T_P) of the activities are given below.

Question 12

For the following project network diagram

Standard deviation (σ) along critical path is 3.02. The duration which will have 95% confidence for project completion is ____ days.
[For standard normal Z = 1.645]