Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Moving iron instruments can be used on

a.c. and d.c. both

a.c. only

d.c. only

Half wave rectified a.c.

Q2. How many pressure coils and current coils, respectively, are present in a three-phase dynamometer wattmeter?

There is no pressure coil and no current coil

There are two pressure coils and two current coils

There is one pressure coil and one current coil

There are three pressure coils and three current coils

Q3. Creep adjustments in single-phase energy metres are done by _______.

adjusting the turns ratio

exciting the current coil

providing two holes diametrically opposite in the rotating disc

exciting the pressure coil

Q4. Which of the following is defined as the ratio of the total number of lumens reaching the working plane to the total number of lumens emitting from the source?

Maintenance factor

Space to height ratio

Coefficient of utilisation or utilisation factor

Depreciation factor

Q5. The unit of illumination is

lux

lumen

\(cd/m^2 \)

candela

Q6. Which lamp is best suited for lighting an International sports arena?

Metal Halide

Incandescent

High pressure sodium vapour

LED

Q7. In case of________power factor is the highest.

GLS lamps

mercury arc lamps

tube lights

sodium vapour lamps

Q8. In the case of a perfect dielectric medium, phase constant \(_{-------------}\) as conductivity increases.

Increases

Decreases

Remains unchanged

None of these

Q9. Divergence of a vector at a point in a vector field is quantity.

vector

scalar

both (a) and (b)

none of these

Q10. A medium behaves like dielectric when \(_{-------------}\)

The displacement current is much greater than the conduction current

The displacement current is just equal to the conduction current

The displacement current is just less than the conduction current

The displacement current as well as conduction current both are negligibly small

Quiz

Year 2024

June
Week # 4 Quiz 3

Q1. Moving iron instruments can be used on

Q2. How many pressure coils and current coils, respectively, are present in a three-phase dynamometer wattmeter?

Q3. Creep adjustments in single-phase energy metres are done by _______.

Q4. Which of the following is defined as the ratio of the total number of lumens reaching the working plane to the total number of lumens emitting from the source?

Q5. The unit of illumination is

Q6. Which lamp is best suited for lighting an International sports arena?

Q7. In case of________power factor is the highest.

Q8. In the case of a perfect dielectric medium, phase constant \(_{-------------}\) as conductivity increases.

Q9. Divergence of a vector at a point in a vector field is quantity.

Q10. A medium behaves like dielectric when \(_{-------------}\)

Quiz

Year 2024

October Week # 1 Expire on 31 Oct 2024

October Week # 2 Expire on 07 Nov 2024

October Week # 3 Expire on 14 Nov 2024

October Week # 4 Expire on 21 Nov 2024

June Week # 4 Quiz 3

Q1. Moving iron instruments can be used on

Q2. How many pressure coils and current coils, respectively, are present in a three-phase dynamometer wattmeter?

Q3. Creep adjustments in single-phase energy metres are done by _______.

Q4. Which of the following is defined as the ratio of the total number of lumens reaching the working plane to the total number of lumens emitting from the source?

Q5. The unit of illumination is

Q6. Which lamp is best suited for lighting an International sports arena?

Q7. In case of________power factor is the highest.

Q8. In the case of a perfect dielectric medium, phase constant \(_{-------------}\) as conductivity increases.

Q9. Divergence of a vector at a point in a vector field is quantity.

Q10. A medium behaves like dielectric when \(_{-------------}\)

Record & Track Your Performance

June
Week # 4 Quiz 3