1. The type of fault where the faulted blocks have been moved against each other in horizontal direction is ___________
a) Reverse fault
b) Hinge fault
c) Strike-slip fault
d) Vertical fault
Explanation: Strike-slip faults are defined as the faults in which faulted blocks have been moved against each other in an essentially horizontal direction. The fault plane is almost vertical and net slip may be measured in great distances.
2. Which fault is developed in oceanic ridges?
a) Wrench faults
b) Transform faults
c) Lateral faults
d) Transverse faults
Explanation: The transform faults are very common and denote strike slip faults specially developed in oceanic ridges
3. San Andres fault is the best example of which type of fault?
a) Strike-slip fault
b) Vertical fault
c) Normal fault
d) Reverse fault
Explanation: The best example of a strike-slip fault is the great San Andres fault of California. It extends for almost about 1000 km in an NW-SE direction.
4. If the left block appears to have moved towards the observer, then which type of fault does it belong to?
a) Left-handed fault
b) Right-handed fault
c) Enecholon fault
d) Radial fault
Explanation: Strike-slip faults are further distinguished into right handed or left handed depending on the direction of movement of the block with respect to an observer: it is a left-handed fault if the left block appears to have moved towards the observer and a right handed fault if the right block seems to have moved towards the observer.
5. What are pivotal faults called as?
a) Reverse faults
b) Radial faults
c) Hinge faults
d) Normal faults
Explanation: Hinge faults are also called as pivotal or rotational faults. A hinge fault is characterised by a movement of the disrupted blocks along with a medial point called the hinge point.
6. The movement of blocks in hinge faults is ___________
a) Translational
b) Rotational
c) Lateral
d) Sliding
Explanation: The movement in hinge fault, is rotational rather translational.
7. Which is the rare type of fault?
a) Vertical fault
b) Reverse fault
c) Thrust fault
d) Hinge fault
Explanation: In hinge faults, the amount of displacement increases away from the hinge point. These are rather rare type of faults.
8. What is the displacement range of strata in San Andres fault?
a) 10 km to 100 km
b) 20 km to 80 km
c) 50 km to 200 km
d) 100 km to 500 km
Explanation: The strata is believed to have suffered displacement varying between 50 km to 200 km in the San Andres fault in California.
9. The fault not belonging to the classification of fault with the attitude of fault as basis ___________
a) Heave fault
b) Strike fault
c) Dip fault
d) Oblique fault
Explanation: The mutual relationship of attitude of fault and of the disrupted rock has also been used in some cases for classifying faults into three types: dip faults, strike faults and oblique faults.
10. Faults that are developed along bedding planes are ___________
a) Strike faults
b) Dip faults
c) Bedding faults
d) Hade faults
Explanation: Sometimes he faults are developed along the bedding planes; in such cases, they are aptly called bedding faults.