FCTC TEST PREP
A belt and pulley system is characterised by - ANS-two or extra pulleys in not unusual to a belt.
Basic water head calculation: - ANS-Measure the peak of the water above the desire measuring
point in inches or ft.
Divide the depth in inches via 27.21 inches/psi or the intensity in ft by way of 2.31 toes/psi that
are the english unit conversion factors
Result is water head stress expressed in PSI
Class 1 Lever - ANS-Fulcrum inside the middle
the attempt is carried out on one aspect of the fulcrum and the resistance on the other facet.
Class 2 Lever - ANS-Resistance inside the center.
Effort is implemented on one facet of the resistance and the fulcrum is placed on the other side.
Class 3 Lever - ANS-Effort within the middle
The resistance is on one aspect of the effort and the fulcrum is located on the other aspect.
Examples of Class 1 levers: - ANS-see noticed, crowbar, scissors
Examples of Class 2 levers: - ANS-Wheel barrow, a nutcracker, a bottle opener or the brake
pedal of a automobile
Examples of Class 3 levers - ANS-tweezers or the human mandible
Mechanical benefit is usually much less than 1
Formula for determining head pressure - ANS-1 vertical foot= zero.433 pounds / rectangular
inch
1 PSI = 2.31 vertical toes
FRE 123 - ANS-Fulcrum in center for 1st elegance
Resistance is within the center for the 2d lever
Effort is within the middle for the 3rd
HEAD - ANS-stress created by the pressure of gravity and is a characteristic of the distinction in
elevation between consumption and output
A belt and pulley system is characterised by - ANS-two or extra pulleys in not unusual to a belt.
Basic water head calculation: - ANS-Measure the peak of the water above the desire measuring
point in inches or ft.
Divide the depth in inches via 27.21 inches/psi or the intensity in ft by way of 2.31 toes/psi that
are the english unit conversion factors
Result is water head stress expressed in PSI
Class 1 Lever - ANS-Fulcrum inside the middle
the attempt is carried out on one aspect of the fulcrum and the resistance on the other facet.
Class 2 Lever - ANS-Resistance inside the center.
Effort is implemented on one facet of the resistance and the fulcrum is placed on the other side.
Class 3 Lever - ANS-Effort within the middle
The resistance is on one aspect of the effort and the fulcrum is located on the other aspect.
Examples of Class 1 levers: - ANS-see noticed, crowbar, scissors
Examples of Class 2 levers: - ANS-Wheel barrow, a nutcracker, a bottle opener or the brake
pedal of a automobile
Examples of Class 3 levers - ANS-tweezers or the human mandible
Mechanical benefit is usually much less than 1
Formula for determining head pressure - ANS-1 vertical foot= zero.433 pounds / rectangular
inch
1 PSI = 2.31 vertical toes
FRE 123 - ANS-Fulcrum in center for 1st elegance
Resistance is within the center for the 2d lever
Effort is within the middle for the 3rd
HEAD - ANS-stress created by the pressure of gravity and is a characteristic of the distinction in
elevation between consumption and output
