Q61. Which soil type has the highest bearing capacity?
Correct: Rock
Rock provides the strongest support for foundations.
Q62. What is the function of a girder in a structure?
Correct: To support beams
Girders are large beams that support smaller beams.
Q63. Which method is used to determine the compressive strength of concrete?
Correct: Cube test
Cube test involves crushing concrete cubes after curing.
Q64. What is a cantilever beam?
Correct: Beam fixed at one end
Cantilevers project outward with support only at one end.
Q65. Which type of foundation is used for soft soils?
Correct: Pile foundation
Piles transfer load to deeper, stable soil layers.
Q66. What is the purpose of expansion joints in bridges?
Correct: To allow for thermal expansion
They prevent cracking due to temperature changes.
Q67. Which material is used for waterproofing in construction?
Correct: Bitumen
Bitumen is applied to prevent water ingress.
Q68. What is surveying?
Correct: Measuring and mapping land
Surveying determines positions and distances on earth.
Q69. Which type of steel is used in prestressed concrete?
Correct: High tensile steel
High tensile steel withstands prestressing forces.
Q70. What is the Mohs scale used for?
Correct: Measuring mineral hardness
It ranks minerals from 1 (talc) to 10 (diamond).
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