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What is the MA of a hydraulic jack with a 1-inch pump piston and a 6-inch output piston. What is the MA of a hydraulic jack with a 1-inch pump piston and a 6-inch output piston.   A)  35:1 B)  34:1 C)  36:1 D)  33:2


A) 35:1
B) 34:1
C) 36:1
D) 33:2

E) B) and D)
F) All of the above

Correct Answer

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  . What MA does the pulley arrangement have? A)  4 B)  2 C)  3 D)  5 . What MA does the pulley arrangement have?


A) 4
B) 2
C) 3
D) 5

E) B) and C)
F) B) and D)

Correct Answer

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A 5 lb. is set 4' from the fulcrum. How far would a 10 lb. weight need to be set from the fulcrum to create a balance?


A) 5
B) 3
C) 4
D) 2

E) All of the above
F) A) and D)

Correct Answer

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What is the MA of a hydraulic jack with a 1/4-inch pump piston and a 2-inch output piston. What is the MA of a hydraulic jack with a 1/4-inch pump piston and a 2-inch output piston.   A)  55:1 B)  64:1 C)  66:1 D)  63:2


A) 55:1
B) 64:1
C) 66:1
D) 63:2

E) B) and C)
F) A) and B)

Correct Answer

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B

A 25 lb. is set 5' from the fulcrum. How far would a 10 lb. weight need to be set from the fulcrum to create a balance?


A) 12.5'
B) 13.5'
C) 14'
D) 22'

E) A) and B)
F) A) and C)

Correct Answer

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A 10 lb. is set 4' from the fulcrum. How far would a 20 lb. weight need to be set from the fulcrum to create a balance?


A) 5
B) 3
C) 2
D) 4

E) B) and C)
F) All of the above

Correct Answer

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A 20-foot long ramp leads up to a 5-foot high loading dock. The workers place a 300 lb. barrel of cooking oil on a dolly to reduce friction and push the barrel up the ramp and onto the loading dock. What is the MA of this arrangement?


A) 5:1
B) 4:1
C) 4:2
D) 3:2

E) B) and D)
F) B) and C)

Correct Answer

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B

Of what MA does a screw jack take advantage?


A) lever
B) inclined plane
C) rack and pinion
D) block and tackle

E) A) and B)
F) A) and C)

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B

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