In PETI, apart from public used, installation at wet floor requires RCCB at

• 10 mA.
• 30 mA.
• 50 mA.
• 100 mA.

“Sub distribution board rating is 125A but final load must not exceed 63A”. In PETI, this is consider to be…

• Portable Equipment supply.
• Welding Supply.
• Temporary Installation.
• Fixed Installation.

Based on PETI standard, portable equipment used in hazardous area must be …

• Rated at low voltage or extra low voltage.
• Purged continuously after used.
• Calibrated and tested properly.
• Ex equipment only.

What is the common validity of PCF?

• 3 months.
• 6 months.
• 9 months.
• 12 months

What is the minimum size of earthing conductor acceptable for Portable Generator?

• 6 mm square.
• 10 mm square.
• 16 mm square.
• 25mm square.

This equipment must be earthed. This equipment is considered…equipment.

• Class I.
• Class II.
• Class III.
• Class IV.

What is the maximum size of RCD for Class I equipment?.

• 10 mA.
• 30 mA
• 60 mA
• 100 mA

By EC standards, any electrical equipment to be used in …… shall be connected to an earth-free ELV supply.

• Hazardous Area.
• Confined Space.
• General Area
• Worksite

Portable spotlight using 110V supply fittings shall be supplied via ….. transformer.

• Isolation.
• SELV type.
• RVS type.
• Power.

What is the Maximum allowable earthing resistance for mobile generators?

• 4 ohm.
• 10 ohm.
• 50 ohm.
• 100 ohm.