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Quiz
1 Star Diver Exam
1 Star Diver Exam
admin
June 24, 2017
September 8, 2020
Choose the correct option
Your Name
The Instructor Name
The Instructor Email
your Email
1.
Several techniques exist for entering into the water these have always been developed with the safety of the ___________ as a primary consideration.
diver
equipment
environment
2.
Descending and ascending through the bubbles discharged by another diver below, can cause dizziness, try not to look at the bubbles.
True
False
3.
Before a dive it is good to carry out a thorough check with your buddy, helping him/her to prepare and put on the equipment before entering the water.
True
False
4.
A floating buoy marks the presence of divers underwater. In some countries dive law requires ______________ flag known as an “A FLAG”
a blue and white
a blue and yellow
a red and yellow
a red and whithe
5.
If you ascend too quickly the nitrogen is cannot be released quickly enough thus contributing to the formation of bubbles in the divers __________
heart
blood
body
lungs
6.
The air that we breathe is composed of a mixture of gases, for simplicity let’s say that is made up mainly of________________________
of 80% of oxygen and 20% of nitrogen
of 80% of oxygen and 20% of carbon dioxide
of 100% of oxygen
of 20% of oxygen and 80% of nitrogen
7.
underwater the objects appear _____________by about 1/3, water also absorbs light, an effect that increases with wather depth.
farther and bigger
farther and smaller
closer and bigger
closer and smaller
8.
The function of the respiratory organs is to supply the body with the gasses surrounding it; this is done by its absorption into the blood through the ____________
lobuli
pulmonary veins
pulmonary lobe
alveoli
9.
The pressure of the cylinder must be checked by taking 1 breaths from each regulator whilst watching the contents gauge.
True
False
10.
During a dive careful attention needs to be paid to controlling the buoyancy, which should be_______________
negative
positive
neutral
11.
The only effective treatment for air embolism syndrome is immediate recompression in a hyperbaric chamber and the administration of large quantity of __________ to make the blood more fluid and so reduce the risks of obstruction by the bubbles.
sparking water
fresh water
salt water
12.
You plan a dive at 23 metres for 23 minutes. What is the corresponding dive letter group when you finsh the dive?
H
F
G
E
13.
At a depth of 27 metres, the pressure inside the lungs will be the equivalent of the ambient pressure:
3,7 bar
37 bar
27 bar
2,7 bar
14.
Underwater sounds are transmitted ______________ because water has a greater density than air.
much more slowly
much more quickly
15.
You plan a dive at 29 metres for 22 minutes. What is the corresponding dive letter group when you finsh the dive?
G
F
H
E
16.
The test of cylinder consists of checking inside and outside for corrosion and pressure resistance test using pressure of ________ higher than in normal use
double
50%
100 bar
300 bar
17.
The most serious consequence of pulmonary overdistension is the passing of ________ bubbles from the alveoli into the blood stream and is commonly known as air embolism syndrome.
oxigene
carbon dioxide
air
nitrogene
18.
For the assembly of regulator there are two types of fitting: INT with five or seven thread female and DIN with a yoke (A clamp).
True
False
19.
Wet suits are generally made of silicone, of different thickness (from 1.5 to 8 mm), lined on the inside and outside with special cloth that make them more comfortable.
False
True
20.
Together with the main regulator it is advisable to have an alternative source of air in order to have a safer diving.
False
True
21.
At the end of the a first dive the letter group is E. Now, wanting to plan a second dive, after a break on the surface of 3 hours and 29 minutes. What is the new dive letter group after the time on the surface?
C
D
F
B
22.
A personal dive computer can calculate the exact saturation state of our tissue
False
True
23.
Depth gauge is an instrument that measures the depth before a dive.
False
True
24.
After commencing final descent check your buddies kit for any air leaks.
True
False
25.
At the end of the a first dive the letter group is F. Now, wanting to plan a second dive, after a break on the surface of 3 hours and 29 minutes. What is the new dive letter group after the time on the surface?
C
B
F
D
26.
It is advisable to ________________ before entering the water.
slightly inflate the jacket
drink a Coca cola or similar sparkling drink
deflate the jacket
27.
The speed at which sound travels through water makes it difficult for his senses to judge _______________
the intensity
the message
the direction
28.
At the end of the a first dive the letter group is H. Now, wanting to plan a second dive, after a break on the surface of 3 hours and 29 minutes. What is the new dive letter group after the time on the surface?
C
F
B
D
29.
When diving without reference points and in reduced visibility, the _______________ supplies the diver with information of the route and helps with the return to the starting point.
sonar
map
compass
gps
30.
The BCD is used to_____________________
breathe
go up
keep the buoyancy constant
31.
After a time on the surface the new dive letter group is B. Now wanting to plan a second dive in this case 14 metres for 25 minutes. What is the new dive letter group at the end of the dive?
G
E
I
H
32.
On dive tables the time and depth of the dive are correlated.
False
True
33.
The function of the cardio-circolatory system is to transport and distribute oxygen and to remove residues and _____________
bad air
carbon dioxide
nitrogene
carbon monoxide
34.
If we want to dive, ________________________, the B.C.D. must be deflated by using the exhaust valve.
keeping a vertical position
keeping a horizontal position
keeping your arms under water
keeping your head under water
35.
Normally, ____________ breath is preceded by an increase in the breathing rate.
shortness of
increase in
36.
A divelog well kept is a document that shows the divers experience but is of much less value than a certificate.
False
True
37.
In the case of loss of regulator it is necessary to ascent and continue to
keep breathing
exhale
breathe
38.
Hypoxia refers to the situation in which the amount of oxygen required by the cell is less than that available to the body
True
False
39.
The regulator enables the diver to breathe underwater. This part the equipment allows _________________.
air supply at ambient pressure.
air supply at atmospheric pressure.
air supply at hidrostatic pressure.
40.
our body contains cavities filled with gas that subjected with pressure are compensated for in two ways:
reduction of pressure - increase volume
reduction of pressure - balance of volume
increase pressure - reduction of volume
balance of pressure - increase volume
41.
The pressure gauge must have a safety valve that will blow after the glass.
True
False
42.
While you dive, in order to evaluate the hydrostatic equilibrium, is important to consider the relation between volume and weight of:
the human body, the density of the liquid and the neoprene suit
the BCD, the density of the liquid and the neoprene suit
the human body, the density of the liquid and the BCD
the human body, the BCD and the neoprene suit
43.
Nitrogen narcosis effects different divers differently depending on the ___________________
physical conditions and the ambient
only ambient
only physical conditions
only psychic conditions
44.
All the divers should have at least a basic understanding of first aid and O2 administration.
False
True
45.
Every time we make a movement we use energy which asks more of our body, requiring a change in the ___________ in order to satisfy this new demand.
body
metabolism
heart
pulmon
46.
The BCD is also equipped with four or more valves to avoid the risks of over inflating it.
False
True
47.
The cylinder is the container that allows the diver to carry a reserve of breathable ______________ underwater.
carbon dioxide
air
nitrogene
oxigene
48.
Always have a keeper on _________________ side of the weightbelt from the buckle.
the middle
the opposite
the same
49.
By wearing a mask, an air space is placed between the diver’s eyes and the water so the objects can be_______________________
properly touched
properly watched
properly focused
50.
The “Octopus” It is fixed to _____________________ of the first stage through a hose than the normal one.
a high-pressure port - longer
a high-pressure port - shorter
a low-pressure port - longer
a low-pressure port - shorter
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