Exam (elaborations)
NLN Practice Tests 2023
- Course
- CHEM PHYSICAL C
- Institution
- Chamberlain College Of Nursing
NLN Practice Tests 2023
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NLN Practice Tests 20231 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of
heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively.
Compared to X, Y must have a lower
specific heat.
conductive heat.
heat of fusion.
heat of vaporization. - answers specific heat.
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide
containing a large number of swimming paramecium. Under this condition, which of
these behaviors of the paramecia will be observed?
They will eventually all swim toward the ammonium hydroxide.
They will show no net change in behavior to the ammonium hydroxide.
They will all be instantly killed by the ammonium hydroxide.
They will eventually all swim away from the ammonium hydroxide. - answers They will
eventually all swim away from the ammonium hydroxide.
A method for determining the blood alcohol content of a subject is to
do a Mantoux test.
do a Dick test.
use a Breathalyzer.
inspect the size of the pupils. - answers use a Breathalyzer.
A physician measures the pulse and blood pressure (BP) of all patients on a routine
basis. Which of these measurements show the normal BP values for a resting adult
patient?
125/95 mm Hg
120/80 mm Hg
100/80 mm Hg
72/120 mm Hg - answers 120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her throat. An
immediate remedy is to
have her bend forward and tell her to cough.
insert a finger or a blunt object toward the back of the mouth.
apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
phone "emergency" for help - answers apply quick, hard pressures successively to her
abdomen, just beneath her diaphragm.
An unknown gas is more dense than air, does not support combustion, and turns a
limewater solution cloudy. This gas is most probably
ammonia.
methane.
carbon dioxide.
hydrogen. - answers carbon dioxide
,NLN Practice Tests 2023
If the medulla of the brain in a human was damaged, which of these conditions would
most likely result?
Inability to remember.
Difficulty in breathing.
Inability to speak.
Blurred vision. - answers Difficulty in breathing.
In diagnostic testing, the electroencephalogram permits the physician to
examine the impulses of the specialized muscle cells of the heart.
examine the impulses of the nerve cells within the brain.
measure the pressure within the eye.
measure the amount of air upon exhalation. - answers examine the impulses of the
nerve cells within the brain.
In ecological succession, the first living thing to colonize a hitherto barren area is called
a
producer.
primary consumer.
pioneer organism.
carnivore. - answers pioneer organism.
In varieties of matter, the term heterogeneous may be applied to
elements, but not compounds.
compounds, but not elements.
compounds and elements, but not mixtures.
mixtures, but not elements or compounds. - answers mixtures, but not elements or
compounds.
Periodontitis is an inflammatory condition of the
gum tissue that surrounds the neck of each tooth.
pulp that contains nerve cells and blood vessels of the tooth.
dentin that surrounds the soft part of a tooth.
enamel that provides a hard surface for chewing. - answers gum tissue that surrounds
the neck of each tooth.
The atoms of an element with seven valence electrons are most probably classified as
metals.
nonmetals.
metalloids.
noble gases. - answers metals.
The bending of a wave around an obstacle is known as
diffraction.
deflection.
, NLN Practice Tests 2023
refraction.
reflection. - answers diffraction.
The inherited factors that are transmitted in an organism from generation to generation
are called its
homozygote.
heterozygote.
genotype.
phenotype. - answers genotype.
The organ that filters metabolic waste from the blood is the
small intestine.
liver.
kidney.
stomach. - answers kidney.
The process of nuclear cell division in the cell reproduction of plants differs from
mammals. A major difference is that
homologous chromosomes are paired.
centrioles are replicated.
spindle fibers are missing.
cell plates are synthesized. - answers homologous chromosomes are paired
In animals, the cell is split from the outside by a contractile ring, forming a cleavage
furrow. A layer of actin and myosin filaments underneath the plasma membrane at the
cell center begins to contract until the cell is essentially pinched in half. In plants, a new
cell wall forms inside the cell that grows outward until the formation of two new cells.
The assembly of a new cell wall forms by vesicles filled with cellulose and lignin, which
eventually fuse together to create a new cell wall, and the parent cell splits in two.
Which of these conditions is associated with smoking?
Esophageal varices.
Tonsillitis.
Emphysema.
Blindness. - answers Emphysema.
Which of these equations best illustrates a synthesis reaction?
2Na + Cl2 -> 2NaCl
NaOH + HCl -> NaCl + H2O
2H2O2 -> 2H2O + O2
CH4 + 2O2 -> CO2 + 2H2O - answers 2Na + Cl2 -> 2NaCl
Which of these hydrocarbons is a member of the benzene family?
Toluene.
Ethyne.
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