please answer the following questions Q1 In PERT chart the t

please answer the following questions

Q1)- In PERT chart the time estimate of activity is calculated by:
a) Normal
b) Binomial
c) Logarithmic
d) None of the above.
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Q2)-What governs in intersection design after capacity:
a)Speed
b)Safety
c)Cost
d)Volume
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Q3)- Bricks
a. Motor is an effect to strength of Brick wall.
b. Lime stone is an effect of Strength of Bricks.
c. Motor is considered the main effect of strength of Brick wall.
d. moter is used as binder
e. All of the above
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Q4)- final step in definition WBS :
a)assign code for each activity of the work package
b) assign the account manager
c) assign the work package to a manager
d) develope responsibility matrix
e) non of these
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Q5 Working break structure (WBS) is defined as:
1)Graphical presentation
2)TopDown structure with program adopted
3)DownTop structure with program adopted
4)useful in complex projects. Is the correct answer:
1,2 OR 1,3 OR 2,4 OR 3,4?
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Q)5-modulus of elasticity of mass rock is usually ?
a) less than rock substance
b) equal to rock substance
c) higher than rock substance
d) not correlated to rock subsrance
please explain why ?
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Q6)-what is the natural stress in celling fan rod ?
a)shear
b) tensile
c) compression
d)tension
why ?
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Q7)-what is the primary use of fast track scheduling
a) to guaranty the project cost before start constructiin
b)to decrease cost professional services
c)to avoid future cost increase
d) to decrease cost of constructiona
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Q8)-bridge footing is to be constructed on sand the water table is at the ground surface the ultimate bearing capacity unit weight ?
a) saturated unit weight
b) dry unit weight
c) total unit weight
d) buoyant unit weight
please explain
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Q9)-what is the best place to build exhibtion center ?
a- near airport
b- high population area
c- remot control area
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Q10)-uplifting on slab on grade will happen because ?
a-unbalanced moment
b- soil resistance
c-different of shears at slab ends
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Solution

1) (d) None of the above. PERT uses probability approach.

2) (b) Safety

3) (e) All of the above ( \"Mortar\" not motor or moter)

4) (a) Assign code for each activity of the work package.

5) 1,2. Although all of the can be correct but a graphical representation of WBS normally depicts from high-level to low-level activities. We can either adopt the top-down structure or bottom-up structure.

5) (a) less than the rock substance because of presence of joints or cracks.

6) (c) Compression. When the ceiling fan rotates, the fan blades push the air towards gravity(downward), and from Newton\'s third law, the air pushes the fan blades upwards which cancels the weight and thus creating more upward force which tries to compress the fan rod.

7) (d) to decrease cost of construction

8)   (d) Buoyant unit weight. When the water table is on the ground surface, the soil below the ground becomes saturated. To calculate the ultimate bearing capacity of the soil on which the foundation rests, the \"effective pressure\" (total pressure - water pressure) has to be calculated. The Buoyant unit weight is defined as the effective pressure when the soil is submerged below the standing water or below the ground water table.

9)   (b) high population area

10) (a) Unbalanced moment