Block and tackle - Study guides, Class notes & Summaries

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?

ASVAB practice test 1 Questions and Answers 100% Pass 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 ...

FCTC ACTUAL TEST PREPARATION QUESTIONS AND CORRECT ANSWERS 2024/2025 GRADED A+. 2 / 2 1. A belt and pulley system is characterized by: two or more pulleys in commonto a belt. 2. What does a belt and pulley system allow for?: mechanical power, torque, andspeed to be transmitted across axles 3. How is mechanical advantage realized?: if the pulleys are different diameters 4. what is a pulley?: a wheel on an axle or shaft that is designed to supportmovement and change of direction of a cab...

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 - Answer-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" - Answer-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 - Answer-c. 10 : 1 4. If a wire ro...

FCTC TEST PREP QUESTIONS AND ANSWERS ALREADY PASSED A belt and pulley system is characterized by two or more pulleys in common to a belt. What does a belt and pulley system allow for? mechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? if the pulleys are different diameters what is a pulley? 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 ...

Power Engineering 4A - Test Review 1 Questions and Answers Already Passed The main component of any computer is the: Select one: a. Central processing unit b. Memory c. Screen d. Keyboard A Which of the following statements about steam distributing heating coils is true? Select one: a. The coils are freeze-proof b. The coils distribute steam evenly over the entire coil c. The coils are used when steam cannot be throttled d. The coils cannot be used where freezing air tempera...

Special Riggers Exam Questions and Correct Answers Bowline - Correct Answers secure safety line Back Hitch - Correct Answers secure rope scaffold Working Hitch - Correct Answers back up to back hitch Overnight Hitch - Correct Answers tie off scaffold at night Becket Hitch - Correct Answers tie rope to block and tackle Rig 3-Part Block - Correct Answers used to hoist rope scaffold Timber Hitch - Correct Answers used to hoist planks, cross braces, etc. Clove Hitch - Correct A...

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? ...

TRUE or FALSE: Both "thud" and "live" are considered full contact because the drills are run at a competitive speed. True TRUE or FALSE: When checking head size, place the sizing tape approximately one inch above the player's eyebrows. True Click all that apply: Coaches can teach players tackling fundamental drills: -In shorts and t-shirts -In helmets and shoulder pads -In full pads -In non-contact settings -In full-contact settings All terms apply The target ar...

Millwright - Rigging and Hoisting Questions and Answers 100% AccurateMillwright - Rigging and Hoisting Questions and Answers 100% AccurateMillwright - Rigging and Hoisting Questions and Answers 100% Accurate 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 - ANSWER-a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift?