1)
At Joe's Restaurant, one-fourth of the patrons are male and one-fifth of the patrons are from out of town. What proportion would you expect to be male and out of town?
1/5
1/10
1/20
1/25
1/50
2)
There are 112 male and 78 females working at a hospital. What percentage of the hospitals workforce is female?
22%
32%
38%
41%
78%
3)
What is the estimated product when 620 and 374 are rounded to the nearest hundred and multiplied?
12,000
24,000
60,000
120,000
240,000
4)
If a patient doesn't receive treatment for a certain injury within 2 hours after injury, the patient's chance of survival starts decreasing by 15% each hour. If no treatment …show more content…
1.69
169
16.9
32.5
76)
6/9 + 12/9 =
12/9
24/9
1
2
Section: Mechanical Comprehension
77)
Which mechanical components are typically used between a wheel and an axle to reduce friction?
springs
hinges
bearings
levers
78)
A block of steel has a density of 0.29 pounds per cubic inch. If the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight?
0.29 pounds
0.58 pounds
0.87 pounds
1.0 pounds
79)
Which principle of mechanical motion is used in the design of a roller coaster?
momentum
friction
acceleration
All of the above
80)
Which term below best describes the OPPOSITE of an increase in speed?
rotation
deceleration
friction
velocity
81)
A valve is used to perform which of the following functions?
increase the temperature of a liquid
Control the flow of a liquid
aid evaporation of a liquid
decrease the density of a liquid
.
82)
The sprocket on a bicycle is most similar to which of the simple mechanical devices listed below?
A …show more content…
How much force must be applied to the block in order to move the box 3.5 inches to the left?
150 pounds
250 pounds
350 pounds
450 pounds
85)
A concrete beam has a maximum strength of 3,000 psi (pounds per square inch). In an experiment, a 500-pound weight is placed in the center of the beam, and the stress in the beam is measured to be 1,000 psi. If the stresses in the beam continue to increase at the same rate with added weight, how much additional weight can be added to the same location on the beam before the beam will break?
500 pounds
1,000 pounds
1,500 pounds
3,000 pounds
86)
An elevator is most similar to which of the following mechanical devices?
a spring
a hydraulic jet
a lever
A crane
87)
There are three beams that are each 10 feet long and all of the same size. One is made of wood, another of steel, and the third of concrete. If identical loads are applied to these three beams, which of the following will