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Question (11)

QN0081

A switch shown without a gap in its symbol represents the ______ position.

(A) OFF
(B) open
(C) broken
(D) ON

Correct Answer: D

Explanation:

A connected switch symbol shows ON position.

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Question (12)

QN0082

Which component is represented in a circuit diagram by a straight line?

(A) Wire
(B) Switch
(C) Battery
(D) Lamp

Correct Answer: A

Explanation:

Straight lines represent connecting wires.

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Question (13)

QN0083

A student draws a circuit using symbols instead of actual pictures of components. What is the main advantage?

(A) It increases voltage
(B) It makes the circuit easier to understand
(C) It reduces current flow
(D) It changes the battery polarity

Correct Answer: B

Explanation:

Circuit symbols simplify understanding.

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Question (14)

QN0084

Which organisation creates standard electrical symbols used worldwide?

(A) WHO
(B) UNESCO
(C) IEC
(D) ISRO

Correct Answer: C

Explanation:

IEC standardises electrical symbols internationally.

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Question (15)

QN0085

What is the purpose of standard electrical symbols?

(A) To make symbols colourful
(B) To help people worldwide understand circuits easily
(C) To increase electricity production
(D) To replace wires in circuits

Correct Answer: B

Explanation:

Standard symbols ensure uniform understanding.

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Question (16)

QN0086

A student draws two cells connected together in a circuit diagram. How many long lines will appear in the battery symbol?

(A) 1
(B) 2
(C) 3
(D) 4

Correct Answer: B

Explanation:

Each cell contributes one long line.

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Question (17)

QN0087

In a circuit diagram, an LED symbol is shown connected opposite to the direction of current flow. What will most likely happen?

(A) LED glows brightly
(B) LED becomes bigger
(C) LED will not glow
(D) Battery disappears

Correct Answer: C

Explanation:

LEDs glow only in correct direction of current flow.

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Question (18)

QN0088

Which component in a circuit diagram is mainly used to control current flow?

(A) Wire
(B) Lamp
(C) Switch
(D) Cell

Correct Answer: C

Explanation:

A switch controls current flow in the circuit.

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Question (19)

QN0089

A student wants to represent a closed circuit in a diagram. Which switch symbol should be used?

(A) OFF switch symbol
(B) Open switch symbol
(C) ON switch symbol
(D) Broken wire symbol

Correct Answer: C

Explanation:

ON switch symbol represents a closed circuit.

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Question (20)

QN0090

Which statement correctly defines a circuit diagram?

(A) A collection of electrical tools
(B) A drawing made using symbols for electrical components
(C) A battery connected to wires only
(D) A method of generating electricity

Correct Answer: B

Explanation:

Circuit diagrams use symbols to represent components.

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Question (11)

A switch shown without a gap in its symbol represents the ______ position.

Explanation:

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Question (12)

Which component is represented in a circuit diagram by a straight line?

Explanation:

Link:

Question (13)

A student draws a circuit using symbols instead of actual pictures of components. What is the main advantage?

Explanation:

Link:

Question (14)

Which organisation creates standard electrical symbols used worldwide?

Explanation:

Link:

Question (15)

What is the purpose of standard electrical symbols?

Explanation:

Link:

Question (16)

A student draws two cells connected together in a circuit diagram. How many long lines will appear in the battery symbol?

Explanation:

Link:

Question (17)

In a circuit diagram, an LED symbol is shown connected opposite to the direction of current flow. What will most likely happen?

Explanation:

Link:

Question (18)

Which component in a circuit diagram is mainly used to control current flow?

Explanation:

Link:

Question (19)

A student wants to represent a closed circuit in a diagram. Which switch symbol should be used?

Explanation:

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Question (20)

Which statement correctly defines a circuit diagram?

Explanation:

Link:

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