RRB JE CBT 2 - Electronics Practice Questions - RRB Junior Engineer CBT 2 - Electronics & Allied Engineering Exam - RRB JE CBT 2 - Electronics Practice Questions - RRB Junior Engineer CBT 2

Question 1

Which of the following metals exhibits the highest electrical conductivity at 20°C?

Silver Copper Gold Aluminum

Correct Answer:

Silver

Question 2

Which of the following magnetic materials exhibits spontaneous magnetization below a specific temperature known as the Curie temperature?

Paramagnetic materials Diamagnetic materials Ferromagnetic materials Antiferromagnetic materials

Correct Answer:

Ferromagnetic materials

Question 3

In optical fiber cables (OFC), what is the primary purpose of applying index-matching gel during mechanical splicing?

To lubricate the fiber for easier alignment inside the splice tray To minimize reflection losses by matching the refractive index of the fiber core To protect the exposed silica cladding from moisture and mechanical stress To act as a permanent adhesive to bond the two fiber ends together

Correct Answer:

To minimize reflection losses by matching the refractive index of the fiber core

Question 4

What is the nominal terminal voltage of a single fully-charged lead-acid battery cell under normal open-circuit conditions?

1.2 V 1.5 V 2.1 V 3.7 V

Correct Answer:

2.1 V

Question 5

Which component combination constitutes a standard snubber circuit connected across an electromagnetic relay contact to suppress inductive arcing?

A resistor and capacitor in parallel A resistor and capacitor in series An inductor and capacitor in series A resistor and inductor in parallel

Correct Answer:

A resistor and capacitor in series

Question 1

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About this Exam

Prepare with the RRB JE CBT 2 - Electronics Practice Questions - RRB Junior Engineer CBT 2 - Electronics & Allied Engineering Exam practice quiz. This question bank includes 100 questions covering frequency, voltage, input, signal, and amplifier. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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RRB JE CBT 2 - Electronics Practice Questions - RRB Junior Engineer CBT 2 - Electronics & Allied Engineering Exam

This practice set contains 100 questions from the matching question bank and focuses on frequency, voltage, input, signal, and amplifier. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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RRB JE CBT 2 - Electronics Practice Questions - RRB Junior Engineer CBT 2 - Electronics & Allied Engineering Exam

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