Geophysical Methods MCQ

Test your knowledge with important Geophysical Methods MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Geophysical Methods MCQs at Bissoy

• When deeper layers have increasingly greater density, the seismic refraction method is fast.
  ক

  False

  খ

  True
• In a blind zone, the geophone cannot detect the seisdmic refraction.
  ক

  False

  খ

  True
• In Seismic refraction method, the radiating shock waves are picked up by ______
  ক

  geophone

  খ

  wave buoy

  গ

  thermometer

  ঘ

  cohesive soils
• The cone resistance is approximately equal to ______ times the penetration resistance N.
  ক

  10

  খ

  20

  গ

  30

  ঘ

  40
• The cone test is very useful in __________
  ক

  cohesion-less soils

  খ

  cohesive soils

  গ

  clays

  ঘ

  silty clay
• In Dutch cone test, the cone along with mantle is further penetrated after 8cm to a depth of ________
  ক

  20 cm

  খ

  8 cm

  গ

  15 cm

  ঘ

  30 cm
• To know the cone resistance, it is first forced down to _________ depth.
  ক

  8 mm

  খ

  8 cm

  গ

  15 cm

  ঘ

  30 cm
• In Dutch cone test, the angle of vector of cone is ____
  ক

  30°

  খ

  60°

  গ

  20°

  ঘ

  45°
• In Dutch cone test, the base of cone is ____________ cm in diameter.
  ক

  3.6

  খ

  4.6

  গ

  5.6

  ঘ

  6.6
• The angle of internal friction for fines lesser than 5% is ___________
  ক

  φ=25+0.15 ID

  খ

  φ=20+0.15 ID

  গ

  φ=15+0.15 ID

  ঘ

  φ=10+0.15 ID
• The angle of internal friction for fines greater than 5% is ___________
  ক

  φ=25+0.15 ID

  খ

  φ=20+0.15 ID

  গ

  φ=15+0.15 ID

  ঘ

  φ=10+0.15 ID
• Every soil has same resistivity.
  ক

  True

  খ

  False
• In the electrical resistivity method, the unit of resistivity is ohms-cm.
  ক

  True

  খ

  False
• Refusal of standard penetration test occurs when the sampler penetrates ________
  ক

  less than 2.5cm under 50 blows

  খ

  less than 2.5cm under 20 blows

  গ

  less than 2.5cm under 10 blows

  ঘ

  less than 2.5cm under 5 blows
• The penetration resistance is driving the sampler __________
  ক

  5 cm beyond seating drive

  খ

  30 mm beyond seating drive

  গ

  30 cm beyond seating drive

  ঘ

  10 cm beyond seating drive
• The sampler is driven through ____________ as seating drive.
  ক

  50 cm

  খ

  15 cm

  গ

  100 cm

  ঘ

  150 cm
• The height of the free fall in sample in standard penetration test is ___________
  ক

  50 cm

  খ

  75 cm

  গ

  100 cm

  ঘ

  150 cm
• The sample is driven by a weight of _____________ in sample in standard penetration test.
  ক

  65 kg

  খ

  14 kg

  গ

  55 kg

  ঘ

  100 kg
• The sample in standard penetration test has inner diameter of _________ mm.
  ক

  50.8

  খ

  60

  গ

  35

  ঘ

  75
• The sampler in standard penetration test has outer diameter of _________ mm.
  ক

  50.8

  খ

  60.3

  গ

  70.3

  ঘ

  80.2
• The standard penetration test is performed in clear hole of _____________ mm in diameter.
  ক

  10 to 30

  খ

  30 to 50

  গ

  55 to 150

  ঘ

  150 to 1000
• The standard penetration test is given in ____________
  ক

  IS: 800-2007

  খ

  IS: 2131-1981

  গ

  IS: 456-2000

  ঘ

  IS: 178- 2008
• The measurement of resistance and penetration is done by __________
  ক

  dynamic and static loading

  খ

  dynamic loading only

  গ

  static loading only

  ঘ

  no loads