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 :
Options
A. 1 and 2 are correct
B. 1 and 3 are correct
C. 3 and 4 are correct
D. 2 and 4 are correct
Correct Answer
2 and 4 are correct
UPSC Civil Service Exam Questions problems
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1. 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
2. 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?
4. Consider the following methods of preservation of timber : 1. Dipping 2. Brushing or spraying 3. Pressure impregnation The correct sequence in decreasing order of the effectiveness of these methods of preservation is
8. 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
10. 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