CHEMICAL ENGINEERING BASICS QUIZ

In extrusion of metals, which of the following statement is true ?

Redundant work is a function of the die angle

Hollow ram is used for indirect extrusion

Relative motion between the billet surface and the container wall is always present

Speed of the extruded material is same as that of ram speed

TRUE ANSWER : ?
YOUR ANSWER : ?

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Al2O₃

SiO₂

MnO₂

P

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

1/T²

T²

1/T

T

TRUE ANSWER : ?
YOUR ANSWER : ?

Unit of viscosity in CGS system is

Gm .cm⁻², sec⁻¹

Gm .cm⁻¹ sec⁻¹

Gm . cm² . sec⁻²

Gm . cm . sec⁻¹

TRUE ANSWER : ?
YOUR ANSWER : ?

Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be

Same

Either more or less; depends on the climatic conditions

Less

More

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Zirconia

Magnesia

Beryllia

Alumina

TRUE ANSWER : ?
YOUR ANSWER : ?

Ultimate strength in tension as compared to that in shear for steel is

One fourth

One and half times

One third

Half

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxyacetylene reducing flame is used while carrying out welding on

Grey cast iron

Mild steel

High carbon steel

Alloy steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Lead is poured into the joints between two __________ pipes.

Concrete

Plastic

Cast iron

Steel

TRUE ANSWER : ?
YOUR ANSWER : ?

The most important material handling system in an integrated steel plant is the

Overhead hoists & cranes

Truck

Belt conveyor

Diesel locomotive

TRUE ANSWER : ?
YOUR ANSWER : ?

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