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Question (21)

QN006432

In a third class lever, effort lies between:

(A) Fulcrum and load
(B) Load and wheel
(C) Pulley and axle
(D) Rope and force

Correct Answer: A

Explanation:

In third class lever, effort lies between fulcrum and load.

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Question (22)

QN006433

A screw is actually a modified:

(A) Pulley
(B) Inclined plane
(C) Lever
(D) Wedge

Correct Answer: B

Explanation:

Screw is a modified inclined plane.

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Question (23)

QN006434

Which simple machine is commonly used to split wood?

(A) Lever
(B) Screw
(C) Wedge
(D) Pulley

Correct Answer: C

Explanation:

Wedge helps split objects like wood.

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Question (24)

QN006435

A machine has load 600 N and effort 150 N. Its mechanical advantage is:

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

Correct Answer: C

Explanation:

Mechanical advantage = 600 ÷ 150 = 4

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Question (25)

QN006436

Which machine is used in wells to draw water?

(A) Lever
(B) Fixed pulley
(C) Screw
(D) Wedge

Correct Answer: B

Explanation:

Fixed pulley helps draw water from wells.

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Question (26)

QN006437

A crowbar is an example of:

(A) Pulley
(B) Inclined plane
(C) Lever
(D) Screw

Correct Answer: C

Explanation:

Crowbar works as a lever.

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Question (27)

QN006438

Which simple machine is used in a flagpole?

(A) Lever
(B) Pulley
(C) Screw
(D) Wedge

Correct Answer: B

Explanation:

A pulley is used in flagpoles.

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Question (28)

QN006439

The SI unit of effort is:

(A) Joule
(B) Watt
(C) Newton
(D) Pascal

Correct Answer: C

Explanation:

Effort is a force measured in newtons.

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Question (29)

QN006440

Which machine helps reduce effort by increasing distance?

(A) Inclined plane
(B) Wedge
(C) Screw
(D) All of these

Correct Answer: D

Explanation:

All these machines reduce effort by increasing distance.

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Question (30)

QN006441

A machine lifts 1000 N load using 250 N effort. Find mechanical advantage.

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

Correct Answer: C

Explanation:

Mechanical advantage = 1000 ÷ 250 = 4

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Question (21)

In a third class lever, effort lies between:

Explanation:

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Question (22)

A screw is actually a modified:

Explanation:

Link:

Question (23)

Which simple machine is commonly used to split wood?

Explanation:

Link:

Question (24)

A machine has load 600 N and effort 150 N. Its mechanical advantage is:

Explanation:

Link:

Question (25)

Which machine is used in wells to draw water?

Explanation:

Link:

Question (26)

A crowbar is an example of:

Explanation:

Link:

Question (27)

Which simple machine is used in a flagpole?

Explanation:

Link:

Question (28)

The SI unit of effort is:

Explanation:

Link:

Question (29)

Which machine helps reduce effort by increasing distance?

Explanation:

Link:

Question (30)

A machine lifts 1000 N load using 250 N effort. Find mechanical advantage.

Explanation:

Link:

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