Higher Study | General Science

Which of the following is not an electronic device?

ক

A mobile

খ

A computer

গ

A magnifying glass

ঘ

A keyboard

Which of the following cannot travel in vacuum?

ক

Radio waves

খ

Gamma Waves

গ

Infrared Waves

ঘ

Infrasonic waves

Which of the following statements is wrong?

ক

Ground wave propagation can be sustained at frequencies 500 kHz to 1500kHz

খ

Satellite communication is useful for the frequencies above 30 MHz

গ

Space wave propagation takes place through tropospheric space

ঘ

Skywave propagation is useful in the range of 30 to 40 MHz

Which of the following relation is correct?

ক

Design Strength = Ultimate strength / Partial factor of safety

খ

Design Strength = Ultimate strength + Partial factor of safety

গ

Design Strength = Ultimate strength * Partial factor of safety

ঘ

Design Strength = Ultimate strength – Partial factor of safety

What is the value of universal gravitational constant?

ক

6.022 x 1023

খ

6.67 x 10-11 N m2/kg2

গ

1.602 x 10-19 C

ঘ

9.81 m/s2

Which of the following statements are correct?

ক

Equal and Equivalent sets are actually the same

খ

Equivalent sets have a different number of elements

গ

Equal sets have the same elements

ঘ

Two null sets are not equal

Which among the following statements is correct?

ক

NaCl is a paramagnetic substance

খ

Paramagnetic substances behave like an insulator

গ

Cobalt is an Antiferromagnetic substance

ঘ

On heating, ferrimagnetic substanceslose ferrimagnetism

If gravitational constant is decreasing with time, what will remain unchanged in case of a satellite orbiting around the earth?

ক

Time period

খ

Orbiting radius

গ

Areal velocity

ঘ

Angular velocity

If there were no gravity, which of the following will not be there for a fluid?

ক

Viscosity

খ

Surface tension

গ

Pressure

ঘ

Archimedes’ upward thrust

What is the SI unit of mutual inductance?

ক

Ohm

খ

Henry

গ

Volt

ঘ

Siemens

What is the unit of admittance?

ক

ohm

খ

henry

গ

farad

ঘ

ohm-1

Which of these statements is correct?

ক

true and false are numeric values 1 and 0

খ

true and false are numeric values 0 and 1

গ

true is any non zero value and false is 0

ঘ

true and false are non numeric values

What is the SI unit of pressure?

ক

Pascal

খ

Barye

গ

Atm

ঘ

Newton

What is the unit of power?

ক

Joule/sec

খ

Joule/sec2

গ

Joule/sec3

ঘ

Joule/sec4

What is the SI unit of impulse?

ক

N/m

খ

N/m2

গ

N.s

ঘ

Kg.m

Higher Study | General Science | Physics