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2.1
Test Description: Work in Mechanical Systems
Instructions: Answer all questions to get your test result.
1) What is the basic equation for work?
A
F * d
B
F * A
C
F/ A
D
F/d
2) The work unit of one joule is equal to
A
1 foot
B
1 newton meter
C
1 footpount
D
1 meter
3) What is the unit of work in the English system
A
ounce
B
foot pound
C
joule
D
newton meter
4) This is equal to the output work divided by the input work times 100%
A
force
B
pressure
C
work
D
efficiency
5) Angles can be represented by
A
radians
B
all of these
C
theta
D
degrees
6) How much work is done by a student when a 500 lb weight is lifted 10 feet?
A
500 + 10
B
10 / 500
C
500 * 10
D
500 / 10
7) How much work is done by a student who holds a 10 pound weight for 30 seconds?
A
3 newton meters
B
no work is done
C
300 joules
D
300 foot pounds
8) What is one revolution equal to?
A
3.14
B
pi
C
0.5 times 3.14
D
2 times 3.14
9) What is the torque exerted on a wrench with a force of 30 pounds if the length of the wrench is 2 feet?
A
15 joules
B
15 foot pounds
C
60 joules
D
60 foot pounds
10) If 1000 joules of work are done using a force of 250 newtons, what distance is the force moved through?
A
250 divided by 1000
B
250 times 1000
C
1000 divided by 250
D
1000 divided by 250 times 100%
*select an answer for all questions
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