Question # 1

It is difficult to magnetise steel because of its

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Low permeability

High retentivity

High Permeability

High density

Electromagnets are used in

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Electric bells

Telephones

Dynamos

all of above

Which one is not output deceive?

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Keyboard

Modem

CPU

Mouse

A trader marks his goods at 50% above the cost price but allows a discount of 20% on the market price. The profit percent is?

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20

25

15

10

The element which is required by the plant in large quantity?

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Calcium

Sulphur

Phosphorus

Nitrogen

In which of the following fields of science did Ampere not work?

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Astronomy

Classification of elements

Electromagnetism

Probability

Food is readily cooked in a pressure cooker because:

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Boiling occurs at high temperature

Boiling occurs at low temperature

pressure remains constant

The cooking material cannot come out

One pound is equal to_____ kilogram:

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0.482

0.454

0.445

0.431

The gastric glands in the stomach produce an enzyme?

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Ptyalin

Pepsin

Trypsin

Insulin

Which instrument is used to measure the quantities of heat?

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Callipers

Calorimeter

Cardiogram

Cardiograph

Which of the following gas is used in cigarette

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Propane

Butane

Methane

Ethane

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