In transformer, bushing failure occurs due to<br/>(i) transformer vibrations<br/>(ii) dielectric losses<br/>(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (iii) only

(i) and (ii) only

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (iii) only

(i) and (ii) only

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
The line currents in amperes in phases a, b and c respectively are 500 +j150, 100 – j600 and – 300 + j600 referred to the same reference vector with phase sequence of abc. Find the symmetrical component of currents.

Ia₀ = (100+j50) AIa₁ = (200+ j107.75) AIa₂ = (200-j107.75) A

Ia₀ = (100+j50) AIa₁ = (146.41+ j65.47) AIa₂ = (546.41-j165.47) A

Ia₀ = (100+j50) AIa₁ = (546.41+ j165.47) AIa₂ = (546.41-j165.47) A

Ia₀ = (100+j50) AIa₁ = (546.41+j165.47) AIa₂ = (-146.41-j65.47) A

Ia₀ = (100+j50) AIa₁ = (200+ j107.75) AIa₂ = (200-j107.75) A

Ia₀ = (100+j50) AIa₁ = (146.41+ j65.47) AIa₂ = (546.41-j165.47) A

Ia₀ = (100+j50) AIa₁ = (546.41+ j165.47) AIa₂ = (546.41-j165.47) A

Ia₀ = (100+j50) AIa₁ = (546.41+j165.47) AIa₂ = (-146.41-j65.47) A

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

controlling field exciter

using higher rating CTs

inserting the stabilizing resistance in series with the relay

inserting suitable resistance in neutral grounding circuit

controlling field exciter

using higher rating CTs

inserting the stabilizing resistance in series with the relay

inserting suitable resistance in neutral grounding circuit

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
Magnetic tape is not practical for applications where data must be quickly recalled because tape is a/an____.

expensive storage medium

Random access medium

None of these

Sequential access medium

expensive storage medium

Random access medium

None of these

Sequential access medium

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?

In the cables, sheaths are used to provide enough strength.

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

The current carrying capacity of cables in DC is less than that in AC.

In the cables, sheaths are used to provide enough strength.

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

The current carrying capacity of cables in DC is less than that in AC.

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
Choose the word which best expresses the similar meaning of the given word "LUCID"

Sensible

Clear

Puzzled

Cloudy

Sensible

Clear

Puzzled

Cloudy

ANSWER DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2) In transformer, bushing failure occurs due to(i) transformer vibrations(ii) dielectric losses(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2) The line currents in amperes in phases a, b and c respectively are 500 +j150, 100 – j600 and – 300 + j600 referred to the same reference vector with phase sequence of abc. Find the symmetrical component of currents.

MGVCL Exam Paper (30-07-2021 Shift 2) The magnitude of the generator earth-fault current is limited by

MGVCL Exam Paper (30-07-2021 Shift 2) Magnetic tape is not practical for applications where data must be quickly recalled because tape is a/an____.

MGVCL Exam Paper (30-07-2021 Shift 2) Which one of the following statement is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2) Choose the word which best expresses the similar meaning of the given word "LUCID"

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
The line currents in amperes in phases a, b and c respectively are 500 +j150, 100 – j600 and – 300 + j600 referred to the same reference vector with phase sequence of abc. Find the symmetrical component of currents.

MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

MGVCL Exam Paper (30-07-2021 Shift 2)
Magnetic tape is not practical for applications where data must be quickly recalled because tape is a/an____.

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following statement is TRUE?

MGVCL Exam Paper (30-07-2021 Shift 2)
Choose the word which best expresses the similar meaning of the given word "LUCID"