1. During percussion drilling _____.
[A] The soil to a considerable depth below the bottom of the hole gets disturbed
[B] Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole
[C] Caving or mixing of strata are caused in soft soils or cohesionless soils
[D] All the above
Answer: Option D
2. A wooden block fixed on back side of a door frame on its post, is known as _____.
[A] Horn
[B] Cornice
[C] Stop
[D] Cleat
Answer: Option C
3. In a colar beam roof ______.
[A] There are two horizontal ties, one at the feet and other at the middle of the rafters
[B] There is a horizontal tie at the feet of rafters only
[C] There is no horizontal tie beam
[D] There is a horizontal tie at almost the middle of rafters only
Answer: Option D
4. The type of stone masonry in which stones of same height are laid in layers, is called _____.
[A] Course rubble masonry
[B] Uncoursed rubble masonry
[C] Random rubble masonry
[D] Ashlar masonry
Answer: Option A
5. The piece of a brick cut with its one corner equivalent to half the length and half the width of a full brick, is known as _____.
[A] King closer
[B] Half king closer
[C] Queen closer
[D] Bevelled closer
Answer: Option A