Home
News
Search for:
Search
Skip to content
Diver check
PTRD Training
E-Learning
Member’s Area
Spearfishing
Contact
SCUBA DIVING
SPEARFISHING
PTRD DIVING CENTERS
Search for:
Search
Home
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.
The cylinder is the container that allows the diver to carry a reserve of breathable ______________ underwater.
nitrogene
oxigene
air
carbon dioxide
2.
The function of the cardio-circolatory system is to transport and distribute oxygen and to remove residues and _____________
carbon dioxide
carbon monoxide
nitrogene
bad air
3.
A body immersed in a fluid is ______________by the column fluid above it.
not crushed
crushed
4.
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?
D
B
C
F
5.
underwater the objects appear _____________by about 1/3, water also absorbs light, an effect that increases with wather depth.
closer and smaller
farther and bigger
closer and bigger
farther and smaller
6.
The water pressure on the eardrum must be balanced by internal pressure so that it is not damaged. It is necessary to compensate ______________________, without waiting to feel the pain
on surface before diving
once, immediately underwater
every time there is a need
when you are on the bottom
7.
The speed at which sound travels through water makes it difficult for his senses to judge _______________
the message
the intensity
the direction
8.
Depth gauge is an instrument that measures the depth before a dive.
False
True
9.
The speed at which sound travels through water makes it difficult for his senses to judge _______________
the intensity
the message
the direction
10.
On dive tables the time and depth of the dive are correlated.
True
False
11.
“At a constant temperature the volume of a gas varies _____________ with absolute pressure while the density of a gas varies ________ with absolute pressure”
directly - inversely
inversely - directly
12.
On resurfacing it may be necessary to ______________________ to obtain positive buoyancy or to be able to come out of the water more easily
quickly remove the weight belt
quickly remove the equipment
quickly remove the cylinder
quickly remove the fins
13.
First aid for Decompression Sickness: the application of pure oxygen guarantees greater oxygenation of __________ and helps to lessen the risk of damage
lungs
heart
blood
the tissues
14.
All weight belts must have a quick release buckle, which requires a positive action to open them
False
True
15.
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.
16.
During a dive careful attention needs to be paid to controlling the buoyancy, which should be_______________
negative
neutral
positive
17.
The BCD is used to_____________________
breathe
go up
keep the buoyancy constant
18.
Always have a keeper on _________________ side of the weightbelt from the buckle.
the middle
the opposite
the same
19.
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?
D
C
B
F
20.
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 20% of oxygen and 80% of nitrogen
of 100% of oxygen
21.
Descending and ascending through the bubbles discharged by another diver below, can cause dizziness, try not to look at the bubbles.
False
True
22.
The snorkel allows breathing on the surface with the head underwater thus keeping the seabed in sight
True
False
23.
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
compass
map
gps
24.
The “Octopus” It is fixed to _____________________ of the first stage through a hose than the normal one.
a high-pressure port - longer
a low-pressure port - shorter
a low-pressure port - longer
a high-pressure port - shorter
25.
Every time that our body undergoes a loss of heat it responds by trying to maintain a constant temperature in the central zone. This is:
Hypothermia
Hyperthermia
26.
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?
E
H
I
G
27.
It is very important before assembly a regulator check the condition of______________
the BCD
the O-ring
the cylinder
the valve
28.
The tendency of the body to float is:
Negative Buoyancy
Positive Buoyancy
Neutral Buoyancy
29.
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
30.
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?
B
D
C
F
31.
If we want to dive, ________________________, the B.C.D. must be deflated by using the exhaust valve.
keeping your arms under water
keeping your head under water
keeping a vertical position
keeping a horizontal position
32.
Knifes must be used ________________________.
to attack the shark
to open the shell
only in case of real need
to cut the fish
33.
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 focused
properly watched
34.
After the use the mask must be rinsed with fresh water and replaced with the glass downwards so that the soft part does not become deformed.
False
True
35.
You plan a dive at 23 metres for 23 minutes. What is the corresponding dive letter group when you finsh the dive?
E
G
H
F
36.
A whistle is important because it can call to the fishes.
True
False
37.
When you plan a dive the first thing is to establish the maximum depth to be reached, for examples 13 metres, naturally considering 15 metres on the tables following down the column the limit of permanence at this depth is shown at 100 minutes. Planning to dive for 35 minutes, 30 minutes must be calculated. At this point on the right the corresponding dive letter group, in this case F is found.
True
False
38.
The pressure gauge must have a safety valve that will blow after the glass.
False
True
39.
In the case of loss of regulator it is necessary to ascent and continue to
exhale
keep breathing
breathe
40.
Several techniques exist for entering into the water these have always been developed with the safety of the ___________ as a primary consideration.
environment
diver
equipment
41.
The BCD is also equipped with four or more valves to avoid the risks of over inflating it.
False
True
42.
A floating buoy marks the presence of divers underwater. In some countries dive law requires ______________ flag known as an “A FLAG”
a red and yellow
a red and whithe
a blue and white
a blue and yellow
43.
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.
True
False
44.
The BCD must be slowly deflated during ascent, because the air inside it expands and creates an ________________________and subsequent loss of control of speed. (max. 9 meter/minutes)
blowout
increasingly negative buoyancy
increasingly positive buoyancy
45.
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
46.
You plan a dive at 29 metres for 22 minutes. What is the corresponding dive letter group when you finsh the dive?
H
E
G
F
47.
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
48.
A divelog well kept is a document that shows the divers experience but is of much less value than a certificate.
False
True
49.
At a depth of 27 metres, the pressure inside the lungs will be the equivalent of the ambient pressure:
2,7 bar
37 bar
27 bar
3,7 bar
50.
Nitrogen narcosis effects different divers differently depending on the ___________________
only ambient
only psychic conditions
only physical conditions
physical conditions and the ambient
Enter your comments here
Time is Up!
control 1*
Comments are closed.
PTRD in the world
PTRD is Poseidon recognised
PTRD is WSDS member
PTRD INTERNATIONAL certified
PTRD Spain Certifier
PTRD is CDWS recognised
PTRD is ITA06 CMAS member
PTRD is EDA recognised
PTRD is ITAF07 CMAS Member
PTRD is DAN Europe Member
PTRD is ISO Certified