In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

The raio, (properller agitator dia/tank dia) is normally taken as

A

0.15-030

B

0.5-0.65

C

0.75-0.85

D

0.60-0.90

Paddle agitator

A

Is suitable for mixing low viscosity liquids

B

Produces axial flow

C

Moves at very high speed

D

None of these

Speed of industrial paddle agitator ranges from __________ rpm.

A

1 to 5

B

20 to 100

C

500 to 750

D

1000 to 2000

Scale up of agitator design requires

A

Geometrical similarity only

B

Dynamic similarity only

C

Both geometrical and dynamic similarity

D

All of the above

There are two domains on your network. The DESIGN domain trusts the SALES domain. A color printer is shared in the DESIGN domain, and print permissions have been granted to the Domain Users and Domain Guests groups in the DESIGN domain. The Guest account has been enabled in the DESIGN domain. User John Y logs on using his account in the SALES domain. What must you do to allow JohnY to access the printer?

A

Make JohnY a member of the DESIGN Domain Guests group

B

Make JohnY a member of the DESIGN Domain Users group

C

Do nothing. JohnY can access the printer now

D

JohnY cannot access the printer with this configuration

E

None of the above

In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

A

1 d

B

1.25 d

C

1.5 d

D

1.75 d

The capillary rise of mercury is maximum in glass tube of dia __________ mm.

A

0.5

B

1

C

2

D

5

Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole and $${\sigma _{\text{t}}}$$ = Permissible tensile stress for plate material)

A

$${\text{pd}}{\sigma _{\text{t}}}$$

B

$${\text{pt}}{\sigma _{\text{t}}}$$

C

$$\left( {{\text{p}} - {\text{d}}} \right){\sigma _{\text{t}}}$$

D

$$\left( {{\text{p}} - {\text{d}}} \right){\text{t}}{\sigma _{\text{t}}}$$

The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

A

πd

B

πdn

C

πdn sinα

D

πdn cosα

Small dia distillation column can be a

A

Packed column

B

Sieve tray

C

Bubble cap

D

Any of these

In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

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