Block and tackle - Study guides, Class notes & Summaries

FCTC TEST PREP WRITTEN EXAM REVIEW A belt and pulley system is characterized by - ANS-two or more pulleys in common to a belt. What does a belt and pulley system allow for? - ANS-mechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? - ANS-if the pulleys are different diameters what is a pulley? - ANS-a wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference Why a...

Millwright - Rigging and Hoisting Questions and Answers 100% CorrectMillwright - Rigging and Hoisting Questions and Answers 100% CorrectMillwright - Rigging and Hoisting Questions and Answers 100% CorrectMillwright - Rigging and Hoisting Questions and Answers 100% Correct1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - ANSWER-a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is ...

1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" a. ½" 3. What is the standard safety factor to consider for a platform supporting people?a. 1 : 1 b. 5 : 1 c. 10 : 1 d. 15 : 1 c. 10 : 1 4. If a wire rope has a breaking strength of 15,000 lbs, d...

ADADFCTC TEST PREPFCTC TEST PREP Questions with complete solution A belt and pulley system is characterized by - correct answer two or more pulleys in common to a belt. What does a belt and pulley system allow for? - correct answer mechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? - correct answer if the pulleys are different diameters what is a pulley? - correct answer a wheel on an axle or shaft that is designed to support...

Millwright - Rigging and Hoisting Exam Questions with Verified Answers 1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - CORRECT ️️ a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" - CORRECT ️️ a. ½" 3. What is the standard safety factor to consider for a platform supporting people? ...

ASVAB practice test 1 questions & answers 2024 An induction clutch works by - ANSWER-magnetism If a first class lever with a resistance arm measuring 2 feet and an effort arm measuring 8 feet are being used, what's the mechanical advantage? - ANSWER-Length of Effort Arm ÷ Length of Resistance Arm. MA = 8 ÷ 2 = 4 The force produced when a boxer's hand hits a heavy bag and "bounces" off it is called - ANSWER-recoil If Gear 1 has 25 teeth and Gear 2 has 15 teeth, how many revolu...

1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" a. ½" 3. What is the standard safety factor to consider for a platform supporting people?

Flag Football Questions and Answers Rated A+ Who is the player responsible for deciding the plays during the game? The quarterback. Which player’s role is to run out and catch a thrown ball? The receiver. Who passes the ball to the quarterback at the start of a play? The center. Which player tries to block the defenders from reaching the quarterback? The offensive lineman. Who tries to tackle the quarterback before they can throw the ball? The defensive lineman. 2 Wh...

ABSA 4B EXAM QUIZ BANK | 1566 QUESTIONS | WITH ALL CORRECT SOLUTIONS Internal ____ is not required for dynamic type compressors. seals lubrication pressure monitoring corrosion monitoring temperature monitoring -Answer-b Low pressure or high pressure are the two primary classifications of ____. centrifugal pumps sump pumps boilers draft fans pressure controllers -Answer-e The boiler feedwater becomes increasingly ____ as it approaches the measurement of zero. acidic neutral soft...

An induction clutch works by - magnetism If a first class lever with a resistance arm measuring 2 feet and an effort arm measuring 8 feet are being used, what's the mechanical advantage? - Length of Effort Arm ÷ Length of Resistance Arm. MA = 8 ÷ 2 = 4 The force produced when a boxer's hand hits a heavy bag and "bounces" off it is called - recoil If Gear 1 has 25 teeth and Gear 2 has 15 teeth, how many revolutions does Gear 2 make for every 10 revolutions Gear 1 makes? - r = DR/d,...