Vidyalelo
Geological Engineering · Q14

Site Investigation and Geotechnical Exploration

Engineering and GATE · Geological Engineering · question 14

Q14

The SPT hammer weight and free fall height are respectively:

A.
63.5 kg and 76 cm
Answer
B.
65 kg and 75 cm
C.
63.5 kg and 60 cm
D.
60 kg and 76 cm

Answer: Option A

Solution

Answer: Option A
Solution:
The SPT uses a 63.5 kg hammer falling from a height of 76 cm to drive the sampler.This standard ensures consistency across tests.