Chemical Engineering Basics | Test For NTS PPSC FPSC, TEST

A. Its higher boiling point (290°C) increases its heat carrying capacity
B. Comparatively less weight of coolant is required
C. Smaller radiator can be used
D. All a, b & c

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Category: Chemical Engineering Basics

The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the________________?

For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by__________________?

Glycerine is used as a coolant in cooling of some engines instead of water, because___________________?

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

The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?

Increasing sulphur content in pig iron tends to make it ________________?

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m-1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is____________________?

The most important consideration in value engineering is the_____________________?

A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is________________?

Machinability of hard alloys and tool steels is improved by_____________________?