I&C

 

1.      What is the purpose of testing gas-insulated switchgear (GIS)?

• a) To ensure proper installation and commissioning

• b) To assess the insulation condition

• c) To verify the mechanical endurance

• d) All of the above

What is the primary function of an under voltage relay?

• A) To monitor and detect overvoltage conditions in electrical systems.

• b) To control the frequency of an electrical signal

• c) To protect equipment and circuits from low voltage conditions.

• d) To regulate the current flow in a power distribution network

What is the purpose of a hydrostatic stretch test?

• A) To measure the volume capacity of a pressure vessel.

• B) To assess the mechanical integrity and strength of a pressure vessel

• c) To determine the corrosion resistance of a pressure vessel

• d) To evaluate the thermal conductivity of a pressure vessel

This setting tool used for_

• a) Adjustment of tie rod

• b) Setting of bus-duct contact

• c) adjustment of expansion joint

• a) Adjustment of tie rod

Answer explanation

What does a shock indicator with a rating of 25g indicate?

• a) The magnitude of electrical current in a circuit

• b) The level of shock resistance in a material

• c) The sensitivity to impact or acceleration events

• d) The weight or mass of an object.

What is the tightening torque of DN8 connection Density monitor ?

• a) 20 Nm

• b) 40 Nm

• c) 60 Nm

• d) 35 Nm

When a person electrically touches the live part of an apparatus, the step potential is_

• a) potential between the hand and the

  leg

• b) none of the given options

• c) The potential between the two legs of

  a person when he walks on an electrically operated surface

• d) potential between the hand and the

  other hand

Which of the following statement is incorrect ?

• a) outdoor s/s require more space than indoor s/s

• b) Future extension is easy for outdoor

  s/s

• c) Outdoor s/s require less time for installation

• d) the cost of outdoor s/s is higher than indoor s/s

What is the primary difference between HIRA (Hazard Identification and Risk Assessment)

and SWMS (Safe Work Method Statement)?

• HIRA is a systematic process used to identify potential hazards and assess

  associated risks, while SWMS is a

  documented step-by-step procedure

  outlining how a specific high-risk task will be carried out safely.

• HIRA is a comprehensive assessment of potential hazards, their associated risks, and recommendations for risk mitigation measures, while SWMS is a task-specific document focusing on

  personal protective equipment (PPE)

  requirements.

• HIRA focuses on providing detailed instructions for conducting high-risk tasks, while SWMS is a systematic process used to identify potential hazards and assess associated risks.

• HIRA is a task-specific document

  outlining the steps to be followed, while SWMS is a broader process used to identify hazards and evaluate risks in a workplace.

What is the primary difference between an ELCB (Earth Leakage Circuit Breaker) and an

RCCB (Residual Current Circuit Breaker)?

• ELCB detects and protects against both fault currents flowing to the earth and fault currents flowing through the human body, while RCCB only detects fault currents flowing to the earth.

• ELCB has adjustable sensitivity and can detect leakage currents as low as 6mA, while RCCB typically has higher

  sensitivity and is more suitable for

  detecting leakage currents below 30mA.

• ELCB has faster tripping speeds and can quickly disconnect the power supply upon detecting a fault current, while RCCB generally has slower tripping speeds.

• ELCB is commonly used in older

  electrical installations, mainly for

  protecting against electrical shocks due to earth faults, while RCCB is widely used in modern electrical installations for

  personnel and fire protection.