please answer all question, will gladly appreciate it. Thanks. Question 33 Braci

Question

please answer all question, will gladly appreciate it. Thanks.

Question 33

Bracing with ductile materials is an excellent way to impart seismic resistance to a structure since ductile materials can deform without rupturing

True

False

Question 34

Modern designs employ base isolation in which devices are placed on the ground or within the structure on ground or within the structure to absorb part of earthquake energy

True

False

Question 35

Earthquake intensity scales such as the Modified Mercalli scale assess the effects on people and buildings.

True

False

Question 36

The types of rock or sediment on which a structure's foundation sits are of paramount importance with respect to whether the structure will be damaged by shaking from an earthquake.

True

False

Question 37

The time of day of an earthquake is not a critical factor affecting loss of life from earthquakes.

True

False

Question 38

Earthquakes are most commonly caused by ______________.

;

explosions of nuclear bombs

undersea landslides

meteorite impacts

volcanic activity

sudden earth movements along faults

Question 39

The _________ explains that sediments (such as sands, gravels, and muds) are originally deposited or settled out of water in horizontal layers.

;

law of original continuity

law of superposition

law of original horizontality

law of cosines

law of retrogression

Question 40

In the ________, Steno stated that in an undeformed sequence of sedimentary rock layers, each sedimentary rock layer is younger than the bed beneath it, but older than the bed above

;

law of original continuity

law of superposition

law of original horizontality

law of cosines

law of retrogression

Comments

Expert Answer

Question 43

The point on the Earth's surface directly above the point where the fault first ruptures is called the ____________.

epicenter

hypocenter

depocenter

ethnocenter

1 points

Question 44

The _____ wave travels fastest and moves in a push-pull fashion of alternating pulses of compression (push) and extension (pull).

Love

Rayleigh

P-

S-

1 points

Question 45

P-waves can travel through ________________.

gases

liquids

solids

a vacuum

gases, liquids, and solids

1 points

Question 46

_________ waves travel only through solids; on reaching liquid or gas, the _______ wave energy is reflected back into rock or is converted to another form.

S-

P-

Rossby-

Q-

1 points

Question 47

The frequency of a wave is __________________.

the amount of displacement of the medium through which the wave is passing

the number of waves passing a given point per unit time

the time between successive waves

the energy of the wave

1 points

Question 48

Using the S-P timing method, epicenters can be located using seismograms from a minimum of ______ recording stations.

one

two

three

four

1 points

Question 49

The Richter Scale is set up so that for every _______ increase in the amplitude of the recorded seismic wave, the Richter magnitude increases one number, e.g., from 4 to 5.

two-fold

four-fold

eight-fold

ten-fold

hundred-fold

1 points

Question 50

The intensity of an earthquake is influenced by

earthquake magnitude

distance from the hypocenter/epicenter and duration of shaking

type of rock or sediment making up the ground surface

all of the above

;

explosions of nuclear bombs

undersea landslides

meteorite impacts

volcanic activity

sudden earth movements along faults

Explanation / Answer

question 38)

answer : sudden earth movements along faults

reason : earthquakes are mostly caused by the movement along the fault

they are also caused by the events such as volcanic activity, landslides, mine blasts, and nuclear tests but a very minimal rate

Q 39) law of original horizontality

reason : Thelaw  states that layers of sediment were originally deposited horizontally under the action of gravity.

Q 40) law of superposition

reason : this law states  that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom

Q)43)

epicenter

reason : Epicentre is defined as the  point on earths surface that is directly above the focus, the point where an earthquake or underground explosion originates

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