Chemical Engineering Basics Quiz 10

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Chemical Engineering Basics Quiz 10

1 / 50

Specific gravity of hot metal (pig iron) is _______ times that of the blast furnace slag ?

2 / 50

Sub zero treatment of steel is done to______?

3 / 50

Steel containing low percentage of nickel, chromium & tungsten are termed as the ______ steel ?

4 / 50

Sand used to stop the green sand from sticking to the pattern is termed as the _______ sand?

5 / 50

Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are ________ respectively ?

6 / 50

Strain hardening effect in a metal subjected to cold working is due to the _______ mechanism?

7 / 50

Steel balls are manufactured by_______?

8 / 50

Screws are specified by their ______ diameters?

9 / 50

Speed of a submarine in deep sea & that of an aeroplane is measured by a/an_____?

10 / 50

Spheroidising of a material is a/an _________ process?

11 / 50

Shrinkage allowance on pattern is provided to compensate for shrinkage when the _______?

12 / 50

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal__________?

13 / 50

Stainless steel is welded with difficulty because of______?

14 / 50

Silicon in steel___________?

15 / 50

Shampoos are commercially not available in the form of _____?

16 / 50

Tempering of a material does not improve its______?

17 / 50

Suitability of steel for its use in cable is judged by its strength in___________?

18 / 50

Specific __________ is a dimensionless quantity ?

19 / 50

Steel is welded using the _________ flame ?

20 / 50

Speisses is a mixture of the following ?

21 / 50

Silicon percentage in acid resistant cast iron is about _____?

22 / 50

The ability of tool steel to resist softening at high temperatures is termed as ___________ hardness?

23 / 50

Stainless steel is welded using___________?

24 / 50

The ?transition temperature? for ductile to brittle behavior of steel increases with increase in the ______ content in steel?

25 / 50

Solute atoms which cause yield point phenomenon in mild steel are/is__________?

26 / 50

Super conduction in metals is observed at a temperature of _________ ?K?

27 / 50

Steel & cast iron pipes are produced by _______ casting ?

28 / 50

Strain hardening effect in metals subjected to cold working is due to the ________ mechanism?

29 / 50

Super heating of steam is done at constant_____?

30 / 50

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode_________?

31 / 50

Temperature attained in soldering of metals is about _________ ?C?

32 / 50

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of _______ will facilitate the most accurate measurement of the temperature ?

33 / 50

Starting friction is low in case of the ______ lubrication?

34 / 50

Surface tension of a liquid__________?

35 / 50

Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be__________?

36 / 50

Steel produced from phosphatic iron is ________ in nature?

37 / 50

Steels with high carbon equivalent have poor Weldability, because in these steels during welding_________?

38 / 50

Sudden fall of atmospheric pressure by a large amount is an indication of the_______?

39 / 50

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?

40 / 50

Spark plug is provided in a/an__________?

41 / 50

Routing in production, planning & control is concerned with the_____?

42 / 50

Stresses encountered in the metal forming processes are less than the ______ of the material?

43 / 50

Softening of hardened steel is done by its______?

44 / 50

Satellite is a __________ material?

45 / 50

Runge-Kutta method is used to solve a/an _____?

46 / 50

Square steel key is normally strong in failure by shear & crushing. Keys are normally made of ________ steel bars?

47 / 50

Spherical shape of mercury droplets is due to its______?

48 / 50

Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be_______?

49 / 50

The ?laughing gas? is___________?

50 / 50

Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?

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