LNG Operations - Engine

High Voltage Related Questions of LNG Fleet

Questions for ETO position working with High Voltage PMS and switchgear. Highly recommended for LNG fleet ETO's. Switchboards, procedures, VCB, HV Contactors and Safety questions are waiting for you here.

Mga Tanong 10

Time Limit 5 min

Wika Ingles

Mga Sample na Tanong

Narito ang ilang halimbawang tanong mula sa quiz na ito. I-download ang GYRO app upang kunin ang buong pagsusulit.

Tanong 1

Shipboard power generation and distribution is mainly a three-phase three-wire ungrounded system. True or False?

A True

B False

Tanong 2

What is the main risk of using Shaft generators onboard modern LNGs?

A Sudden ME slowdowns.

B Frequency surges.

C Main Voltage drops.

D ME Overspeed.

Tanong 3

What should be inspected if a high voltage circuit breaker fails to close properly?

A The mechanical closing mechanism and the control circuit.

B The breaker’s insulation resistance.

C The power factor of the system.

D The temperature of the switchgear.

Tanong 4

What is transient recovery voltage (TRV)?

A Voltage that is applied across the contacts of a circuit breaker after current interruption.

B Voltage that is applied to a circuit to restore power after a breaker trips.

C Voltage drop across a circuit breaker while it is conducting normal load current.

D Constant voltage maintained by the system to protect the circuit breaker during operation.

Tanong 5

Choose Disadvantages of SF6 Circuit Breakers:

A More expensive than other types of breakers.

B Switching deposits restrict the number of operations before service/recondition.

C Generally limited to voltages of up to 6kV.

D Much bigger than other breakers.

High Voltage Related Questions of LNG Fleet

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