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Equipment Operation and Friction Quiz

Total questions: 82

Worksheet time: 41mins

Name
Class
Date
1.

Main equipment is:

a)

equipment in which the main chemical and technological processes of product production are carried out

b)

equipment whose failure leads to the shutdown of the technological line

c)

the main part of the equipment on which other components are assembled and installed

d)

equipment of the plant's repair workshops

e)

equipment used for transportation of raw materials

2.

Friction occurring on frictional surfaces in the complete absence of impurities is called:

a)

Rolling friction

b)

Sliding friction

c)

Pure friction

d)

Coriolis friction

e)

Cam friction

3.

At what imbalance is the center of gravity of a part or assembly located outside the axis of rotation?

a)

During rotation

b)

Static support

c)

Static moment

d)

Torque

e)

Static imbalance

4.

Friction observed between solid surfaces with insufficient lubrication (film thickness not more than 0.5 μm):

a)

Semi-dry friction

b)

Pure fluid friction

c)

Semi-fluid friction

d)

Pure complete friction

e)

Pure incomplete friction

5.

Friction occurring with abundant lubrication:

a)

Semi-dry friction

b)

Fluid friction

c)

Semi-fluid friction

d)

Pure friction

e)

Friction

6.

Friction that occurs with proper geometric shapes of bodies:

a)

Boundary friction

b)

Pure fluid friction

c)

Semi-fluid friction

d)

Pure semi-fluid friction

e)

Organic-fluid friction

7.

Electrodes used for welding non-ferrous metals:

a)

Steel

b)

Copper

c)

Carbon

d)

Thin

e)

Non-ferrous

8.

Electrodes used for resurfacing worn-out parts:

a)

ENR

b)

ED

c)

EM

d)

EH

e)

E

9.

To obtain a hard, wear-resistant layer, the following is used:

a)

Alloy of cobalt, chromium, and iron

b)

Alloy of chromium and vanadium

c)

Alloy of chromium and nickel

d)

Alloy of chromium and titanium

e)

Chromium cast iron

10.

Cause of failure of punching dies:

a)

Dulling of cutting edges

b)

Soft material

c)

Saw dulling

d)

Material wear

e)

Edge sticking

11.

For sealing small cracks in equipment parts, the following is used:

a)

Straightening

b)

Pinning

c)

Adhesive

d)

Welding

e)

Soldering

12.

To obtain a permanent (non-detachable) connection:

a)

Screw

b)

Bolt

c)

Welding

d)

Nut

e)

Pin

13.

Purpose of spring stops:

a)

To transfer load in one direction

b)

To transmit rotary motion

c)

To engage gears

d)

To return the mechanism

e)

To increase speed

14.

Current used for arc welding:

a)

Direct current

b)

Alternating current

c)

Both direct and alternating

d)

Solar energy

e)

Battery

15.

How do working surfaces of machine parts wear?

a)

Evenly

b)

Unevenly

c)

Quickly

d)

Slowly

e)

Smoothly

16.

The process of changing dimensions and shape of equipment surfaces:

a)

Wear by friction

b)

Mechanical wear

c)

Abrasive wear

d)

Molecular wear

e)

Molecular-abrasive

17.

Wear due to abrasive particles moving in a gas or liquid flow:

a)

Mechanical

b)

Abrasive erosion

c)

Abrasive wear

d)

Hard wear

e)

Carbide

18.

Plastic deformation of surface layers under sliding friction caused by hard particles:

a)

Mechanical wear

b)

Molecular wear

c)

Abrasive wear

d)

Plastic wear

e)

Iron-structure wear

19.

Breakdown of local metallic bonds when surfaces are as close as atomic lattice distances:

a)

Corrosive wear

b)

Molecular-mechanical wear

c)

Corrosion-mechanical wear

d)

Erosive wear

e)

Impulse-mechanical wear

20.

Spontaneous metal destruction due to physicochemical interaction with the environment:

a)

Medium destruction

b)

Minor destruction

c)

Corrosion destruction

d)

Major destruction

e)

Simple destruction

21.

The process of changes over time in deformation and stresses in parts under external loads:

a)

Flexibility

b)

Hardness

c)

Viscosity

d)

Creep

e)

Durability

22.

One of the main methods of restoring machine parts:

a)

Fatigue failure

b)

With changing material properties

c)

With changing original dimensions

d)

With changing location

e)

Without changing location

23.

For sealing small cracks in metallurgical equipment parts:

a)

Straightening

b)

Pinning

c)

Adhesive

d)

Welding

e)

Soldering

24.

Purpose of cam stops:

a)

To transfer load in one direction

b)

To transmit rotary motion

c)

To engage gears

d)

To return the mechanism

e)

To increase speed

25.

What must be included in an accident report?

a)

Equipment characteristics

b)

Cause of accident

c)

Downtime duration

d)

Cost of elimination

e)

All of the above

26.

Process of gradual damage accumulation under repeated stresses, leading to reduced durability:

a)

Long-term failure

b)

Fast failure

c)

Fatigue failure

d)

Accepted failure

e)

Initial failure

27.

A) Long-term failure B) Fast failure C) Fatigue failure D) Accepted failure E) Initial failure

a)

Long-term failure

b)

Fast failure

c)

Fatigue failure

d)

Accepted failure

e)

Initial failure

28.

Accident report is filled out when machine downtime exceeds:

a)

30 minutes

b)

40 minutes

c)

50 minutes

d)

60 minutes

e)

65 minutes

29.

Repeating set of different types of scheduled repairs:

a)

Repair list

b)

Repair cycle

c)

Repair cost

d)

Repair team

e)

Repair schedule

30.

A list of repairs arranged in order of execution:

a)

Repair cycle

b)

Cycle duration

c)

Repair cycle structure

d)

Types of repair

e)

Cycle structure

31.

Number of operating hours during which all repairs are performed:

a)

Shift duration

b)

Inspection duration

c)

Repair cycle duration

d)

Operating time

e)

Operating cycle

32.

Maintenance and repair in the Maintenance and Repair System can be performed according to one of the methods depending on:

a)

the significance of the equipment in the technological process

b)

whether the equipment is primary or auxiliary

c)

the structure of the repair cycle

d)

the technical condition of the equipment

e)

the availability of spare parts

33.

Periodic maintenance is carried out:

a)

on operating equipment

b)

during equipment downtime

c)

every shift

d)

on standby equipment

e)

in emergency conditions

34.

Maintenance is divided into shift and periodic depending on:

a)

the nature of the work performed

b)

the time of day

c)

the scope of work

d)

the availability of labor

e)

the location of equipment

35.

During the preparatory phase of major overhaul, the following tasks are performed:

a)

hydraulic testing

b)

removal of product from equipment

c)

pneumatic testing

d)

depressurizing to atmospheric pressure

e)

cooling of high-temperature equipment

36.

Preparatory work for major overhaul is performed by:

a)

operational personnel

b)

maintenance personnel

c)

either operational or maintenance personnel

d)

no correct answer

e)

safety personnel

37.

To restore the equipment's resource, the following is performed:

a)

routine repair

b)

major overhaul

c)

shift maintenance

d)

periodic maintenance

e)

conservation

38.

During major overhaul, the following is performed:

a)

restoration of equipment resource

b)

replacement of any parts

c)

repair of only some parts, excluding base parts

d)

modernization

e)

cleaning of equipment

39.

A value that characterizes the device or its operating mode is called:

a)

productivity

b)

parameter

c)

technological process

d)

technological regulation

e)

technical standard

40.

Reactions occurring in one phase are called:

a)

homogeneous

b)

heterogeneous

c)

high-temperature

d)

consecutive

e)

catalytic

41.

The symbol for pressure is:

a)

C

b)

P

c)

T

d)

F

e)

Q

42.

When temperature increases, the reaction rate:

a)

decreases

b)

increases

c)

remains unchanged

d)

first decreases, then increases

e)

stops completely

43.

A value that characterizes the substance content in a solution is:

a)

concentration

b)

technological parameter

c)

technological mode

d)

technological regulation

e)

chemical composition

44.

Particle agglomeration in a colloidal system is called:

a)

catalysis

b)

coagulation

c)

rectification

d)

absorption

e)

sedimentation

45.

By-products not used in the current production but can be raw materials elsewhere are:

a)

waste

b)

raw materials

c)

intermediates

d)

catalysts

e)

residues

46.

A substance that changes the rate of a reaction is:

a)

catalyst

b)

intermediate

c)

activator

d)

regulator

e)

inhibitor

47.

Regeneration is:

a)

restoration of catalyst activity

b)

gas removal

c)

moisture removal

d)

colloid particle agglomeration

e)

extraction

48.

Corrosion is:

a)

destruction of materials under the influence of an aggressive environment

b)

catalyst activity restoration

c)

gas component absorption by liquid absorbers

d)

gas component absorption by solid absorbers

e)

hydrolysis

49.

The process of removing dissolved gases from water is called:

a)

coagulation

b)

degassing

c)

adsorption

d)

absorption

e)

flotation

50.

Processes occurring in the presence of a catalyst are called:

a)

heterogeneous

b)

catalytic

c)

high-temperature

d)

homogeneous

e)

complex

51.

Processes that occur at high temperatures are:

a)

low-temperature

b)

catalytic

c)

high-temperature

d)

homogeneous

e)

endothermic

52.

Equipment used for high-temperature processes:

a)

rectification column

b)

scrubber

c)

furnace

d)

reactor

e)

condenser

53.

Target product separation is achieved by:

a)

enrichment

b)

rectification

c)

neutralization

d)

oxidation

e)

extraction

54.

A set of operations performed in sequence to obtain a finished product from raw materials is:

(a)  

55.

A set of operations performed in sequence to obtain a finished product from raw materials is:

a)

chemical-technological process

b)

technological mode

c)

technological parameter

d)

technological regulation

e)

production cycle

56.

The process of separating the useful part of raw material from the non-useful one is called:

a)

regeneration

b)

degassing

c)

enrichment

d)

complex utilization

e)

concentration

57.

Reactions occurring in different phases are:

a)

homogeneous

b)

heterogeneous

c)

high-temperature

d)

consecutive

e)

reversible

58.

When concentration increases, the reaction rate:

a)

decreases

b)

increases

c)

remains unchanged

d)

first decreases, then increases

e)

becomes constant

59.

A value that characterizes a device or its operating mode is:

a)

concentration

b)

technological parameter

c)

technological mode

d)

technological regulation

e)

process condition

60.

Separation into solid and liquid phases is:

a)

catalysis

b)

coagulation

c)

rectification

d)

absorption

e)

filtration

61.

Process of separating liquid mixtures into distillate and residue by counter-current vapor-liquid contact:

a)

rectification

b)

absorption

c)

coagulation

d)

catalysis

e)

evaporation

62.

A substance that changes the reaction rate is:

a)

activator

b)

intermediate

c)

catalyst

d)

regulator

e)

enzyme

63.

Restoration of catalyst activity is:

a)

regeneration

b)

degassing

c)

enrichment

d)

corrosion

e)

reactivation

64.

Destruction of materials under the influence of aggressive environments is:

a)

mixing

b)

corrosion

c)

grinding

d)

absorption

e)

weathering

65.

Equipment used for high-temperature processes:

a)

rectification column

b)

conveyor

c)

feeder

d)

furnace

e)

cooler

66.

Suspension of fine solid particles in a liquid is called:

a)

emulsion

b)

polymer

c)

catalyst

d)

suspension

e)

dispersion

67.

Which of the following is NOT a parameter of the technological process:

a)

temperature

b)

conversion

c)

pressure

d)

level

e)

flow rate

68.

The process in which a catalyst is used to speed up a reaction is called:

a)

homogeneous catalysis

b)

heterogeneous catalysis

c)

negative catalysis

d)

positive catalysis

e)

selective catalysis

69.

Raw materials are classified by origin into:

a)

mineral raw materials

b)

gaseous raw materials

c)

inorganic raw materials

d)

organic raw materials

e)

renewable raw materials

70.

The process of separating the useful part of raw material from the non-useful one is called:

a)

neutralization

b)

degassing

c)

enrichment

d)

complex utilization

e)

purification

71.

Equipment in which heat required for high-temperature processes is generated is called:

a)

furnace

b)

manometer

c)

reactor

d)

bubbling column

e)

steam generator

72.

The biochemical water treatment process occurring with a constant oxygen supply is:

a)

aerobic

b)

anaerobic

c)

reductive

d)

oxidative

e)

neutralizing

73.

Selective absorption of components from gas and vapor-gas mixtures by liquid absorbents is called:

a)

absorption

b)

desorption

c)

rectification

d)

crystallization

e)

filtration

74.

Chemical reactions are carried out in:

a)

chemical reactor

b)

rectification column

c)

sedimentation tank

d)

oil trap

e)

gas separator

75.

Reactions classified by heat effect include:

a)

catalytic

b)

endothermic

c)

homogeneous

d)

multistage

e)

photochemical

76.

Additives used to increase catalyst activity are:

a)

promoters

b)

packings

c)

antioxidants

d)

carriers

e)

inhibitors

77.

A wastewater treatment method used for removing acids and alkalis:

a)

coagulation

b)

neutralization

c)

rectification

d)

regeneration

e)

sedimentation

78.

Reactions where the initial substance forms an intermediate, which then forms the final product are:

a)

consecutive

b)

parallel

c)

catalytic

d)

endothermic

e)

reversible

79.

Process where dissolved gases are released from water into the air and removed:

a)

aeration

b)

coagulation

c)

ion exchange

d)

flotation

e)

degassing

80.

Change in reaction rate under the influence of special accelerators is called:

a)

isomerization

b)

dehydrogenation

c)

catalysis

d)

cracking

e)

hydrolysis

81.

A reaction that releases heat is:

a)

catalytic

b)

exothermic

c)

homogeneous

d)

multistage

e)

irreversible

82.

A method based on the difference in boiling points of components:

a)

adsorption

b)

mixing

c)

rectification

d)

drying

e)

extraction

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