Question: If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively___________________?

• 1. 3.5 and 5/6
• 2. 5 and 25/36
• 3. 3.5 and 25/36
• 4. 4 and 5/6

Question: In the network shown in Fig. (15 fig) the latest start time of an activity 4-5 is_________________?

• 1. 2
• 2. 4
• 3. 8
• 4. 7

Question: Earliest finish of an activity is always_______________?

• 1. greater than earliest event time of the following node
• 2. less than earliest event time of the following node
• 3. less than or equal to earliest event time of the following node
• 4. greater than or equal to earliest event time of the following node

Question: In PERT analysis, the time estimates of activities and probability of their occurrence follow_______________?

• 1. normal distribution curve
• 2. Poisson’s distribution curve
• 3. Beta – distribution curve
• 4. none of the above

Question: Select the correct statement?

• 1. Activity arrows in a CPM network are drawn to scale
• 2. The tail of an arrow represents the finish of an activity
• 3. Arrow bead represents the start of an activity
• 4. none of the above

Question: PERT technique of network analysis is mainly useful for__________________?

• 1. small projects
• 2. large and complex projects
• 3. research and development projects
• 4. deterministic activities

Question: Select the incorrect statement?

• 1. Earliest start of an activity is the early event time of the node it leaves.
• 2. Latest finish of an activity is the late event time of the node it enters.
• 3. Latest start of an activity is its latest finish minus its duration.
• 4. none of the above

Question: Select the incorrect statement?

• 1. Start float and finish float are always equal
• 2. Total float can be either start float or finish float
• 3. Start float and finish float need not be equal
• 4. Start float and finish float are the differences between activity times and not event times

Question: Select the incorrect statement?

• 1. A critical path always begins at the very first event
• 2. A critical path always terminates at the last event
• 3. Critical activities control the project duration
• 4. Critical activity is the one for which free float is zero

Question: The minimum width of the fire escape stairs shall be?

• 1. 1.00 m
• 2. 1.25 m
• 3. 1.5 m
• 4. 2.0 m