2. Consider the following statements : Collision diagram is used to 1. study accident pattern 2. eliminate accidents 3. determine remedial measures 4. make statistical analysis of accidents Of these statements :
3. Consider the following statements : A : In masonry, bricks are joined together by cement mortar. B : Cement mortar adheres more effectively to brick surface than any other material.
Options
A. both A and R are true and R is the correct explanation of A
B. both A and R are true but R is not the correct explanation of A
4. In a PERT network, the activity durations are given as to (optimistic), tp (pessimistic) and tm (most likely time). What is the variance of is activity?
6. The following steps are involved in making a spigot and socket joint of cast iron pipes used in water supply systems : 1. Tarred gasket or hemp yarn in wrapped around the spigot. 2. The sipgot end is centered into the socket end of the preceding pipe. 3. A joining ring end is placed around the barrel and against the face of the socket. 4. The gasket or hemp yarn in caulked slightly. 5. Molten pig lead is poured and then caulked. The correct sequence of these steps is
8. The side AD of the square block ABCD as shown in the given figure is fixed at the base and it is under a state of simple shear causing shear stress ? and shear strain ?, where The distorted shape is AB'C'D. The diagonal strain (linear) will be
9. For designing end bearing piles of square cross-section in clays having average unconfmed compressive strength of 6 t/m2, the net ultimate bearing capacity may be taken as
10. A plot of land 60°m x 20 m is measure steel tape. If the standard error of length width measurements is taken as ± 1 cm, the standard error of the area of the plot be