Grade 7 English MCQs

Electrical Circuits and Electric Currents Multiple Choice Questions Test 37 Tests pdf Download

Practice science test 37 on electrical circuits and electric currents MCQs, grade 7 conductors and insulators multiple choice questions and answers. Conductors and insulators revision test has science worksheets, answer key with choices as sodium, aluminum, potassium and strontium of multiple choice questions (MCQ) with conductors and insulators quiz as an example of good electrical conductor is for competitive exam prep. Free science study guide to learn conductors and insulators quiz to attempt multiple choice questions based test.

MCQs on Electrical Circuits and Electric Currents Quiz pdf Download Worksheets 37

MCQ. An example of good electrical conductor is

  1. aluminum
  2. sodium
  3. potassium
  4. strontium

A

MCQ. ELCB is also switched off if

  1. faulty earth wire is used
  2. faulty equipment is used
  3. faulty switches are used
  4. two pin plugs are used

B

MCQ. Another cause of short circuits is

  1. insulated wiring
  2. fixed resistance
  3. variable resistance
  4. faulty wire insulation

D

MCQ. Main supply systems have plugs with

  1. one pin
  2. two pins
  3. three pins
  4. four pins

C

MCQ. Resistor, whose resistivity can be varied manually is known as

  1. Transistor
  2. Thermistor
  3. Variable resistor
  4. Fixed resistor

C