Mechanical test

Which direction would provide the best leverage for opening the door?

A) toward you

B) away from you

C) neither

B) away from you

The fire pump diagram is used to regulate the flow of water through a centrifugal pump. If the water is moving to the left, which set of arrows indicate the direction that wheels inside the pump will rotate

A) B and D

B) A and C

C) A and D

C) A and D

With which apparatus would the least strength be required to raise the weight ?

A) A

B) B

C) C

D) D

E) no difference

A

Which of the following locations would the plane or lever most likely break while lifting a weight

A) A

B) B

C) C

B

In order to lift the standpipe box, wheels 1 and 2 must travel in which of the following directions indicated by the arrows

A) 4 and 6

B) 3 and 5

C) 3 and 6

C)3 and 6

Engine 22’s carbon dioxide tank is currently allowing an excessive amount of carbon dioxide into the carbon dioxide/water assembly point. The officer at Engine 23 would like to increase the amount of water and decrease the amount of carbon dioxide. He should move

A) the water control switch up and the carbon dioxide switch to the left

B) the carbon dioxide switch to the left and water control switch down

C) the water control switch up and the carbon dioxide switch to the right

C) The water control switch up and the carbon dioxide switch to the right

Which 2 wheels or gears turn in the same direction as Driver X

A) G and J

B)G and K

C) H and K

D) H and L

E) J and L

B) G and K

Which 2 gears turn in the same direction as driver X

A) G and J

B)H and K

C)G and K

D) H and J

E) none

C)G and K

If the bolts are turned simultaneously in the indicated directions, Block X will move

A)toward A

B) toward B

C) Toward C

D) toward D

E) Not at all

E) Not at all

If pulley A rotates in a clockwise direction, what will be the rotational direction of pulleys B and C

A) both clockwise

B)pulley B clockwise, C counterclockwise

C) Pulley C clockwise, B counterclockwise

D) both counterclockwise

C) pulley C clockwise, B counterclockwise

With which apparatus would the least strength be required to raise the weight

A) A

B) B

C) C

D) D

E) no difference

D) D

If shaft A turns in the same direction of the arrow( counterclockwise when viewed from that end), Shaft B will turn in

A) direction 1( clockwise when viewed from the end)

B) direction 2( counterclockwise when viewed from end

A) direction 1( clockwise when viewed from the end)

In which of the following directions would a firefighter extend the ladder shown below

A) pull the rope in direction 1, which rotates the pulley in direction 3

B) pull the rope in direction 1, which rotates the pulley in direction 4

C) pulls the rope in direction , which rotates the pulley in direction 4

A) pull the rope in direction 1, which roared the pulley in direction 3

In order to wind the safety rope around the bar from left to the right, the bar will need to move in which of the following directions indicated by the arrows

A) 1 and 3

B) 1 and 4

C) 2 and 4

A) 1 and 3

At which point would be the best leverage

A) A

B) B

C) C

C) C