# Construction Planning and Management MCQs -9 | Civil Engineering MCQs | Competitive Exams 1. If an activity has its optimistic, most likely and pessimistic times as 2, 4 and 9 respectively, then its expected time and variance are ____ and ____ respectively.

[A] 4.5 and 7/6
[B] 7 and 49/36
[C] 4.5 and 49/36
[D] 7 and 7/6

Solution: Te = 2, Tm =4 , Tp = 9
Te = (To + 4Tm + Tp)/6
= (2 + 4 * 4 + 9)/6 = 27/6 = 4.5
Variance = ((Tp – To)/6) ^ 2
= [(9-2)/6]^2 = (7/6)^2 = 49/36

2. In rate analysis, the unit of measurement Indian W.C. size 580 mm size is ______.
[A] Kg
[B] Pair
[C] Number
[D] Sq. meter

3. In measurement of Masonry activity, No deduction is made for ends of beams, posts, rafters, and purlins etc. up to ____ in section.

[A] 0.0005 sqm
[B] 0.005 sqm
[C] 0.05 sqm
[D] 0.5 sqm

4. The unit of measurement of Railing (Height and type specified) is ______.

[A] Meter
[B] Sq m
[C] cu m
[D] Kg

5. A type of estimate required if there is change amounting to more than 5% of the original value due to price hiking or change in specification, but does not include any major change in structural design is called ______.

[A] Detailed estimate
[B] Revised estimate
[C] Supplementary estimate
[D] Rough cost estimate