When a 400V, 50Hz, 6-pole induction motor is rotating at 960 rpm on no-load, its slip is -

১%

২%

৩%

৪%

১%

২%

৩%

৪%

2.

অতিরিক্ত রক্তক্ষরণের পর যে Shock হয় সেটি হলো-

Neurogenic Shock

Hypovolumic Shock

Cardiogenic Shock

কোনটিই নয়

Neurogenic Shock

Hypovolumic Shock

Cardiogenic Shock

কোনটিই নয়

3.

An angle made by a survey line with the prolongation of the proceeding line, is known as ...... angle.

Direct

vertical

horizontal

deflection

Direct

vertical

horizontal

deflection

4.

Dialysis করা প্রয়োজন হয় কোন রোগে?

Respiratory failure

Hepatic failure

Cardiac Failure

Renal failure

Respiratory failure

Hepatic failure

Cardiac Failure

Renal failure

5.

Transformer connection at the sending end of a transmission line is usually -

star-star

delta-delta

star-delta

delta-star

star-star

delta-delta

star-delta

delta-star

6.

The inverse Fourier transform of the function $F (ω) = π & (ω) / j ω$ is

sin ωt

cos ωt

sin (t)

u (t)

sin ωt

cos ωt

sin (t)

u (t)

7.

The pH value of water for public supplies is limited from

2.5-6.5

৬.৫-৮

8-10.5

10.5-15

2.5-6.5

৬.৫-৮

8-10.5

10.5-15

8.

Hook's law holds good up to

yield point

Elastic limit

plastic limit

breaking point

yield point

Elastic limit

plastic limit

breaking point

9.

The frictional torque transmitted in a flat pivot bearing, considering uniform pressure is

1 / 2 \times μ . W . R

2 / 3 \times μ . W . R

3 / 4 \times μ . W . R

μ . W . R

1 / 2 \times μ . W . R

2 / 3 \times μ . W . R

3 / 4 \times μ . W . R

μ . W . R

10.

When a shaft is subjected to a twisting moment, every cross section of the shaft will be under _____ stress.

tensile

compressive

Shear

Bending

tensile

compressive

Shear

Bending

11.

মাতৃ মৃত্যুর প্রত্যক্ষ কারণ কোনটি?

Eclampsia

Anaemia

জ্বর

RTI

Eclampsia

Anaemia

জ্বর

RTI

12.

The available energy of a system _____ as its temperature or pressure decreases and approaches that of the surroundings.

remains constant

increases

decreases

None

remains constant

increases

decreases

None

13.

The power input to an induction motor is 50 kW when it is running at 4% slip. If the stator resistance and core losses are neglected, the rotor copper loss is

30 kW

20 kW

2 kW

4 kW

30 kW

20 kW

2 kW

4 kW

14.

The thermal efficiency of diesel engines is about

65%

50%

80%

70%

65%

50%

80%

70%

15.

প্রসব পরবর্তী জটিলতা কোনটি?

Antepartum hemorrhage

Premature rupture of membrane

Antepartum eclampsia

Post Partum Hemorrhage

Antepartum hemorrhage

Premature rupture of membrane

Antepartum eclampsia

Post Partum Hemorrhage

16.

The speed regulation of a synchronous motor is always

১%

0.5%

80%

0

১%

0.5%

80%

0

17.

Human ear can detect sound intensities of the order of _____ W/m².

10^{- 20}

10^{- 13}

10^{- 6}

10^{- 3}

10^{- 20}

10^{- 13}

10^{- 6}

10^{- 3}

18.

In an ideal Op-Amp, the input impedance is -

০

50

Infinite

1

০

50