January - Engineering Drawing - Wireman second year

Voltage less than 250 volt is called, 250

• LT (Low Tension)

• HT (High Tension)

• MT (Medium Tension)

• EHT (Extra High Tension)

Which is photo diode?

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Which part regulates the heat in automatic iron?

• Heating element

• Pressure plate

• Thermostatic switch

• Asbestos sheet

What is the material of line insulator?

• Copper

• Aluminium

• Porcelain clay

• Rubber

Which of the following is AC ammeter?

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Identify the symbol of battery

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Which is the symbol of earth?

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Which is a symbol of DC motor?

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Which is the NOT gate in the following picture?

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Which is protective device?

• Fuse

• Resistor

• Magnet

• Capacitor