MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

Le/D for a Tee (used as elbow, entering branch) would be

Around 90

Both B and C

More than that for Tee (used as elbow, entering run)

Less than that for Tee (used as elbow, entering run)

TRUE ANSWER : ?
YOUR ANSWER : ?

Excessive liquid gradient on a tray may result in the

Gas blowing beneath cap skit

All of these

Maldistribution of gas

Back trapping

TRUE ANSWER : ?
YOUR ANSWER : ?

The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

Equal to

Twice

2 ft irrespective of (for column > 3 ft diameter)

0.6-0.8 times

TRUE ANSWER : ?
YOUR ANSWER : ?

Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Wall thickness is > 30 mm

Material of construction is high alloy steel

Plain carbon steel and cast iron parts are used

Both B & C

TRUE ANSWER : ?
YOUR ANSWER : ?

Cylinderical shell thickness of rotary drier is generally __________ mm.

43990

43864

18-22

44180

TRUE ANSWER : ?
YOUR ANSWER : ?

Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√(2d)

√(2πd)

D

√d

TRUE ANSWER : ?
YOUR ANSWER : ?

Lug support is meant for supporting __________ vessels.

Thick walled tall

Large horizontal cylindrical

Tall but empty

Small

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of shear stress to shear strain is called

Bulk modulus

Modulus of elasticity

Modulus of rigidity

Shear modulus

TRUE ANSWER : ?
YOUR ANSWER : ?

Rivets are generally specified by the

Overall length

None of these

Shank diameter

Head diameter

TRUE ANSWER : ?
YOUR ANSWER : ?

The most common standard size of bubble caps used in industrial operation is

6" dia cap with 4" dia riser

1" dia cap with 0.5" dia riser

4" dia cap with 8" dia riser

8" dia cap with 1" dia riser

TRUE ANSWER : ?
YOUR ANSWER : ?

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