Edelman's SPI exam questions
THE BASICS; how are caloric intake and weight related? - CORRECT ANSWER-
directly ;
these two terms are directly related. as food intake increases, weight increases.
similarly, as food intake decreases, weight decreases.
THE BASICS; how is weight related to a sonographer's time spent exercising? -
CORRECT ANSWER-inversely ;
two variables are related when changes in one variable result in changes in the other.
when the changes follow in the opposite direction (one increases as at the other
decreases), the variables are inversely related.
THE BASICS; what is the reciprocal of 1,000? - CORRECT ANSWER-0.001 ;
a pair of reciprocal numbers, when multiplied together, have a value of 1. in this case,
1,000 x 0.001 = 1.
THE BASICS; what is the reciprocal of 5? - CORRECT ANSWER-1/5 ;
a pair of reciprocal numbers, when multiplied together, have value of 1. in this case, 5 x
1/5 = 1
THE BASICS; what is the reciprocal of 1/10? - CORRECT ANSWER-10 ;
a pair of reciprocal numbers, when multiplied together, have value of 1. in this case, 10
x 1/10 = 1
THE BASICS; a sack contains 6 pounds of flour. the contents of the bag are increased
by a factor of 5. how much flour is in the bag? - CORRECT ANSWER-30 pounds ;
the term "increase by a factor" means to multiply. 6 x 5 = 30 pounds.
THE BASICS; a bouquet has 30 flowers. the size of the bouquet is decreased by a
factor of 3. how many flowers remain? - CORRECT ANSWER-10 ;
the term "decrease by a factor" means to divide. 30/3 = 10.
THE BASICS; which of the following is not a measure of area?
A. square cm
B. meters squared
C. cubic meters
D. feet x feet - CORRECT ANSWER-cubic meters ;
Cubic meters are not used to measure
area; they are used to measure volume. An area is measured in units of distance
squared. For example, a rectangle's area is
,its length multiplied by its width, and can be reported in square feet, in^2, or square
miles
THE BASICS; a sonographer measures the perimeter of an anatomical structure. which
of the following choices is a reasonable value for the measurement?
A. 6 cm^2
B. 5 cc
C. 15 mm
D. 18 dB - CORRECT ANSWER-15 mm
"perimeter" means the length of the outer boundary of a structure. for example, a
square with an edge that is 5 inches long will have a perimeter measuring 20 inches
(four sides, each with a length of 5 inches).
THE BASICS; what are the units associated with the circumference of a circle? -
CORRECT ANSWER-mm ;
the circumference of a circle is the length of the circle's outer boundary and is measured
in units of length
THE BASICS; what is the vertical axis of a graph called?
A. z-axis
B. x-axis
C. y-axis
D. time-axis - CORRECT ANSWER-y-axis ;
the vertical axis of a graph is called the y-axis and extends up and down
THE BASICS; what is the name of the horizontal axis of a graph? - CORRECT
ANSWER-x-axis
the horizontal axis of a graph is the x-axis. the x-axis extends side to side.
THE BASICS; how are scores on the ultrasound board exams related to study time? -
CORRECT ANSWER-directly ;
two variables are related when changes in one variable result in changes in the other.
when the changes go in the same direction (both increase or both decrease), variables
are directly related. Since scores increase as study time increases, these variables are
directly related.
THE BASICS; the volume of a cystic structure is estimated from sonographic data.
which of the following is an acceptable measurement of this volume?
A. 6
B. 6 cm
C. 6 cm^2
D. 6 cm^3 - CORRECT ANSWER-6 cm^3
,the units of volume are length cubes, such as ft^3 or cubic centimeters. volume may
also be expressed as length to the third power.
THE BASICS; the speed of the red blood cells traveling through a blood vessel is 750
cm/sec. you are asked to measure this speed in miles per hour. what information would
be sufficient for you to complete your task? - CORRECT ANSWER-how many seconds
per hour and the number of miles in a centimeter;
To convert one unit to another requires a
factor that relates the two terms. For
example, to change a measurement of
length from feet into inches, we must know. now many inches are in a foot. In this case
We are asked to convert cm per sec into miles per hour. Therefore, we require two
pieces of information: the relationship between seconds and hours (relating one Unit of
time to another) and the relationship between miles and centimeters (relating one unit of
distance to another). When units are changed, the actual amount does not change. For
example, ten dimes provide the same purchasing power as four quarters. The units may
be different, but the "total picture" remains the same.
THE BASICS; how much bigger is one billion than one thousand? - CORRECT
ANSWER-1,000,000 times ;
a billion is one million times larger than a thousand. a million is 1,000,000.
THE METRIC SYSTEM; Select the sequence that appears in increasing order.
A. mega, kilo, hecto, milli, gigi
B. nano, milli, micro, deci, deca, mega
C. centi, deci, deca, hecto
D. milli, hecto, centi, deci, nano, gigi - CORRECT ANSWER-centi, deci, deca, hecto;
centi means "one-hundredth", deci means "one tenth", deca means "ten", and hecto
means "hundred". this sequence is increasing, starting from the smallest and ending
with the largest.
THE METRIC SYSTEM; How many nanoseconds are in 7 seconds? - CORRECT
ANSWER-7,000,000,000 ;
nano means billionth. there are one billion billionths in one second. therefore, there are
seven billion billionths in seven seconds.
THE METRIC SYSTEM; the letters below represent the abbreviations for the prefixes of
the metric system. select the sequence that appears in decreasing order.
A. m, k, M, g, da
B. a, m, k, d, u
C. g, k, di, m, u, n
D. M, k, da, d, c - CORRECT ANSWER-M, k, da, d, c ;
, M stands for mega and means "millions." k stands for kilo and means "thousands." da
stands for deca and means "tens." d stands for deci and means "one-tenth." c stands for
centi and means "one-hundredth." Thus, this sequence is of decreasing numbers.
THE METRIC SYSTEM; Match the following prefixes with their meanings.
A. mega. 1. hundreds
B. hecto 2. thousands
C. milli 3. thousandths
D. kilo 4. millions
E. nano 5. billions
F. giga 6. billionths - CORRECT ANSWER-A-4, Millions
B-1, Hundreds
C-3, Thousandths
D-2, Thousands
E-6, Billionths
F-5, Billions
You should be familiar with the
abbreviations, prefixes, and meanings for
all the terms associated with the metric system.
THE METRIC SYSTEM; Which term is the reciprocal of mega?
A. nano
B. kilo
C. macro
D. micro - CORRECT ANSWER-micro ;
mega means million. the reciprocal of million is millionth. micro means millionth.
THE METRIC SYSTEM; How can the volume of an irregularly shaped object be
measured most accurately?
A. by visual inspection
B. by its weight
C. by immersing it in water
D. by ultrasound scanning - CORRECT ANSWER-by immersing it in water;
the volume of any object can be accurately measured by immersing it in water and
measuring the volume of water that is displaced.
SOUND WAVES; what term is used to describe the effects of an ultrasound wave on
living tissues? - CORRECT ANSWER-biological effects;
the effects of ultrasound on the tissues are called biological effects or bioeffects. there
have been no confirmed bioeffects on humans with acoustic intensities typical of those
used in diagnostic imaging.
THE BASICS; how are caloric intake and weight related? - CORRECT ANSWER-
directly ;
these two terms are directly related. as food intake increases, weight increases.
similarly, as food intake decreases, weight decreases.
THE BASICS; how is weight related to a sonographer's time spent exercising? -
CORRECT ANSWER-inversely ;
two variables are related when changes in one variable result in changes in the other.
when the changes follow in the opposite direction (one increases as at the other
decreases), the variables are inversely related.
THE BASICS; what is the reciprocal of 1,000? - CORRECT ANSWER-0.001 ;
a pair of reciprocal numbers, when multiplied together, have a value of 1. in this case,
1,000 x 0.001 = 1.
THE BASICS; what is the reciprocal of 5? - CORRECT ANSWER-1/5 ;
a pair of reciprocal numbers, when multiplied together, have value of 1. in this case, 5 x
1/5 = 1
THE BASICS; what is the reciprocal of 1/10? - CORRECT ANSWER-10 ;
a pair of reciprocal numbers, when multiplied together, have value of 1. in this case, 10
x 1/10 = 1
THE BASICS; a sack contains 6 pounds of flour. the contents of the bag are increased
by a factor of 5. how much flour is in the bag? - CORRECT ANSWER-30 pounds ;
the term "increase by a factor" means to multiply. 6 x 5 = 30 pounds.
THE BASICS; a bouquet has 30 flowers. the size of the bouquet is decreased by a
factor of 3. how many flowers remain? - CORRECT ANSWER-10 ;
the term "decrease by a factor" means to divide. 30/3 = 10.
THE BASICS; which of the following is not a measure of area?
A. square cm
B. meters squared
C. cubic meters
D. feet x feet - CORRECT ANSWER-cubic meters ;
Cubic meters are not used to measure
area; they are used to measure volume. An area is measured in units of distance
squared. For example, a rectangle's area is
,its length multiplied by its width, and can be reported in square feet, in^2, or square
miles
THE BASICS; a sonographer measures the perimeter of an anatomical structure. which
of the following choices is a reasonable value for the measurement?
A. 6 cm^2
B. 5 cc
C. 15 mm
D. 18 dB - CORRECT ANSWER-15 mm
"perimeter" means the length of the outer boundary of a structure. for example, a
square with an edge that is 5 inches long will have a perimeter measuring 20 inches
(four sides, each with a length of 5 inches).
THE BASICS; what are the units associated with the circumference of a circle? -
CORRECT ANSWER-mm ;
the circumference of a circle is the length of the circle's outer boundary and is measured
in units of length
THE BASICS; what is the vertical axis of a graph called?
A. z-axis
B. x-axis
C. y-axis
D. time-axis - CORRECT ANSWER-y-axis ;
the vertical axis of a graph is called the y-axis and extends up and down
THE BASICS; what is the name of the horizontal axis of a graph? - CORRECT
ANSWER-x-axis
the horizontal axis of a graph is the x-axis. the x-axis extends side to side.
THE BASICS; how are scores on the ultrasound board exams related to study time? -
CORRECT ANSWER-directly ;
two variables are related when changes in one variable result in changes in the other.
when the changes go in the same direction (both increase or both decrease), variables
are directly related. Since scores increase as study time increases, these variables are
directly related.
THE BASICS; the volume of a cystic structure is estimated from sonographic data.
which of the following is an acceptable measurement of this volume?
A. 6
B. 6 cm
C. 6 cm^2
D. 6 cm^3 - CORRECT ANSWER-6 cm^3
,the units of volume are length cubes, such as ft^3 or cubic centimeters. volume may
also be expressed as length to the third power.
THE BASICS; the speed of the red blood cells traveling through a blood vessel is 750
cm/sec. you are asked to measure this speed in miles per hour. what information would
be sufficient for you to complete your task? - CORRECT ANSWER-how many seconds
per hour and the number of miles in a centimeter;
To convert one unit to another requires a
factor that relates the two terms. For
example, to change a measurement of
length from feet into inches, we must know. now many inches are in a foot. In this case
We are asked to convert cm per sec into miles per hour. Therefore, we require two
pieces of information: the relationship between seconds and hours (relating one Unit of
time to another) and the relationship between miles and centimeters (relating one unit of
distance to another). When units are changed, the actual amount does not change. For
example, ten dimes provide the same purchasing power as four quarters. The units may
be different, but the "total picture" remains the same.
THE BASICS; how much bigger is one billion than one thousand? - CORRECT
ANSWER-1,000,000 times ;
a billion is one million times larger than a thousand. a million is 1,000,000.
THE METRIC SYSTEM; Select the sequence that appears in increasing order.
A. mega, kilo, hecto, milli, gigi
B. nano, milli, micro, deci, deca, mega
C. centi, deci, deca, hecto
D. milli, hecto, centi, deci, nano, gigi - CORRECT ANSWER-centi, deci, deca, hecto;
centi means "one-hundredth", deci means "one tenth", deca means "ten", and hecto
means "hundred". this sequence is increasing, starting from the smallest and ending
with the largest.
THE METRIC SYSTEM; How many nanoseconds are in 7 seconds? - CORRECT
ANSWER-7,000,000,000 ;
nano means billionth. there are one billion billionths in one second. therefore, there are
seven billion billionths in seven seconds.
THE METRIC SYSTEM; the letters below represent the abbreviations for the prefixes of
the metric system. select the sequence that appears in decreasing order.
A. m, k, M, g, da
B. a, m, k, d, u
C. g, k, di, m, u, n
D. M, k, da, d, c - CORRECT ANSWER-M, k, da, d, c ;
, M stands for mega and means "millions." k stands for kilo and means "thousands." da
stands for deca and means "tens." d stands for deci and means "one-tenth." c stands for
centi and means "one-hundredth." Thus, this sequence is of decreasing numbers.
THE METRIC SYSTEM; Match the following prefixes with their meanings.
A. mega. 1. hundreds
B. hecto 2. thousands
C. milli 3. thousandths
D. kilo 4. millions
E. nano 5. billions
F. giga 6. billionths - CORRECT ANSWER-A-4, Millions
B-1, Hundreds
C-3, Thousandths
D-2, Thousands
E-6, Billionths
F-5, Billions
You should be familiar with the
abbreviations, prefixes, and meanings for
all the terms associated with the metric system.
THE METRIC SYSTEM; Which term is the reciprocal of mega?
A. nano
B. kilo
C. macro
D. micro - CORRECT ANSWER-micro ;
mega means million. the reciprocal of million is millionth. micro means millionth.
THE METRIC SYSTEM; How can the volume of an irregularly shaped object be
measured most accurately?
A. by visual inspection
B. by its weight
C. by immersing it in water
D. by ultrasound scanning - CORRECT ANSWER-by immersing it in water;
the volume of any object can be accurately measured by immersing it in water and
measuring the volume of water that is displaced.
SOUND WAVES; what term is used to describe the effects of an ultrasound wave on
living tissues? - CORRECT ANSWER-biological effects;
the effects of ultrasound on the tissues are called biological effects or bioeffects. there
have been no confirmed bioeffects on humans with acoustic intensities typical of those
used in diagnostic imaging.
