In blanking operation, the clearance is provided on

In sheet metal blanking, shear is provided on punches and dies so that

A

Press load is reduced

B

Good cut edge is obtained

C

Warping of sheet is minimized

D

Cut blanks is straight

There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called

A

Wet steam

B

Saturated steam

C

Superheated steam

D

Cushion steam

In piercing operation, the clearance is provided on

A

Punch

B

Die

C

Half on the punch and half on the die

D

Either on punch or die depending upon designer's choice

The cutting force in punching and blanking operations mainly depends on

A

The modulus of elasticity of metal

B

The shear strength of metal

C

The bulk modulus of metal

D

The yield strength of metal

Blanking and piercing operations can be performed simultaneously in a

A

Simple die

B

Progressive die

C

Compound die

D

Combination die

An adequate clearance between the tray and the shell wall of a distillation column is provided to

A

Drain the liquid from the tray when the unit is not in operation

B

Allow for thermal expansion and facilitate installation

C

Avoid back-trapping

D

None of these

The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is

A

0.01 micron

B

0.1 micron

C

1 micron

D

10 microns

Plasma clearance value of glucose is :

A

125ml /min

B

140ml/min

C

0ml / min

D

75ml / min

Big Shop Ltd. set up a cold storage in Rajshahi for preserving agricultural products, but so far the company _____the clearance from the Agriculture Ministry.

A

will take

B

never takes

C

has not taken

D

would not take

The renal clearance of

A

PAH is a measure of renal plasma flow

B

Phosphate is decreased by parathromone

C

Protein is normally zero

D

Bicarbonate is similar to that of glucose

E

Creatinine provides an estimate of renal plasma flow

In blanking operation, the clearance is provided on

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