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DAY 20 CIVILEZY CIVILWAR KWA Paints, Plastering, Bearings

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DAY 20 CIVILEZY CIVILWAR KWA Paints, Plastering, Bearings
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a desirable property of a good paint under tropical humid climate?

High porosity

Low elasticity

Alkali resistance

Brittle hard film

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In stucco plastering, which of the following materials is added to improve plasticity and workability?

Ground marble or limestone dust

Silica sand

Fly ash

Quicklime

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following bearings can support both axial and radial loads?

Journal bearing

Footstep bearing

Thrust bearing

Taper roller bearing

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following defects in painting is primarily caused by moisture or oily surfaces under the paint film?

Blooming

Blistering

Flaking

Fading

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement correctly describes the role of driers in oil paints?

They slow down the oxidation process

They accelerate polymerisation and drying

They act as thinners

They provide gloss and hardness

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When performing gauged plastering, the proportion of gypsum to lime is generally—

1 : 1 to 1 : 2

1 : 3 to 1 : 4

1 : 5

1 : 6

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The material used for bush bearings in heavy machinery is generally —

Cast iron

Gunmetal

Brass

Lead

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