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4

Runge-Kutta method is used to solve a/an

A. Ordinary differential equation of nth order

B. Simultaneous non-linear equation

C. Linear differential equation

D. None of these

Correct Answer :

B. Simultaneous non-linear equation


Related Questions

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4

The process of removal of scale formed during hot rolling of steel is termed as

A. Descaling

B. Shot blasting

C. Pickling

D. Skimming

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4

Maraging steels derive their strength from the following mechanism:

A. A fine, highly dislocated and strong martensite

B. Fine dispersions of inter-metallic of Fe, Ni, Ti etc

C. Fine dispersions of alloy carbides in a ferrite matrix

D. Fine dispersions of C nucleated on dislocations in austenite

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4

Spherical shape of mercury droplets is due to its

A. High viscosity

B. Low surface tension

C. High density

D. High surface tension

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4

Thermistors are used in __________ devices.

A. Voltage measuring

B. Temperature measuring

C. Temperature compensating

D. Both (B) & (C)

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4

The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag.

A. Fluidity

B. Basicity

C. Acidity

D. Viscosity

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4

__________ remains constant during the adiabatic cooling of moist air.

A. Wet bulb temperature

B. Dry bulb temperature

C. Relative humidity

D. Specific humidity

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4

Corrosion rate cannot be lowered by reducing the __________ of the corroding medium.

A. Concentration

B. Velocity

C. Temperature

D. None of these

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4

What is the range of tempering temperature (°C) for most of the materials?

A. 75-100

B. 200-300

C. 350-450

D. 500-600

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4

Which of the following is a commonly used manometric liquid for low pressure range?

A. Ethyl alcohol

B. Carbon tetrachloride

C. Glycerol

D. Ethylene glycol

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4

Which of the following can be manufactured using powder metallurgy techniques?

A. Brake linings

B. Bearings

C. Carbide tool tips

D. All 'a', 'b' and 'c'

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4

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

A. 300

B. 800

C. 1400

D. 2000

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4

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

A. Borosilicate

B. High silica

C. Supermax

D. Lead

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4

Which of the following is not used as a bearing material?

A. Copper-lead alloys

B. Babbitts

C. Bronzes

D. Cermets

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4

Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

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4

Which of the following materials has the least scrap value?

A. Aluminium

B. Stainless steel

C. Brass

D. Copper

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4

Non-ferrous alloys used for making cutting tools need not have high

A. Abrasion resistance

B. Toughness

C. Red hardness

D. Cutting speed

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4

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

A. Below the yield point

B. Above the yield point

C. Below the elastic limit

D. At the elastic limit

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4

Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

A. Parallel flow with equal heat capacities

B. Counter flow with equal heat capacities

C. Counter flow with unequal heat capacities

D. Parallel flow with unequal heat capacities

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4

Lead pencil contains

A. Graphite

B. Lead sulphide

C. Lead

D. Both (B) & (C)

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4

Energy of the sun arises mainly from __________ reactions.

A. Fusion

B. Fission

C. Combustion

D. None of these

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4

The refrigerant freon-12 is chemically

A. CCl2F2

B. CCl3F

C. CClF3

D. CCl4F

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4

Good design of the casing of a centrifugal pump aims at minimising the

A. Cavitation

B. Frictional losses

C. Kinetic energy loss

D. Static head

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4

Stainless steel is welded with difficulty because of

A. Its high melting temperature

B. Chances of cracking

C. Oxide film formation

D. Chromium carbide formation

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4

The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.

A. Flow output

B. Head developed

C. Overall efficiency

D. Weight

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4

Corrosion is

A. A physical phenomenon

B. A chemical phenomenon

C. Same as erosion

D. An uncontrollable phenomenon

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4

Removal of non-condensable from steam or other vapour is termed as the __________ process.

A. Condensation

B. Deaeration

C. Scavenging

D. Exhaust

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4

Tesla metre per ampere (T. m/A) is the unit for the measurement of

A. Magnetic susceptibility

B. Magnetic moment

C. Permeability of free space

D. Flux density

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4

Oxygen cylinders used for autogenous (cutting/welding) purposes are

A. Seamless & made of steel

B. Heat treated before use

C. Made by sand casting

D. Welded steel cylinders

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4

Aluminium is extracted from

A. Chalcocite

B. Bauxite

C. Galena

D. None of these

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4

The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is

A. Magnesite

B. Chrome

C. Silica

D. Fireclay