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


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