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Unit Tests > B1-10 > Flashcards

B1-10 Flashcards

0
Q

Safety precautions which must be considered when using a hand grinder include:
1) ensure that the correct grinding wheel is used
2) make certain that the guard is properly installed
3) ensure that the grinder is bolted down securely
4) do not start the grinder in contact with the work
5) never use the grinder to grind down a weld
A) 1,3 and 5 only
B) 1,2,3,4 and 5
C) 2,3 and 4 only
D) 1,2 and 4 only

A

D) 1,2 and 4 only

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1
Q 
A tool used to measure engine valve tappet clearances is:
A) a vernier calliper
B) the feeler gauge
C) an inside micrometer
D) round or fillet gauges
E) an outside micrometer
A

B) the feeler gauge

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2
Q 
In general, hacksaw blades with finer teeth are used for:
A) cutting harder metals
B) cutting softer metals
C) cutting thicker metal stock
D) producing a smoother cut surface
E) cutting thinner metal stock
A

E) cutting thinner metal stock

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3
Q 
Taper, plug, and bottoming are all types of:
A) files
B) dies
C) taps
D) wrenches
E) punches
A

C) taps

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4
Q 
A collet is:
A) a type of face spanner wrench
B) a holder for a threading die
C) a type of hole punch
D) the moving part of a micrometer
E) used to make a square hole in a piece of plate
A

B) a holder for a threading die

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5
Q

The size of a hand drill indicates the:
A) maximum length of drill that it can handle
B) size of the motor in watts
C) maximum current draw of the motor
D) maximum diameter drill bit that it can hold
E) diameter of the chuck

A

D) maximum diameter drill bit that it can hold

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6
Q

A single pole scaffold:
A) must have supporting rigging attached to it
B) must be constructed of metal only
C) is partially supported by a building
D) should not be used in commercial operations
E) need not be plumb, only level

A

C) is partially supported by a building

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7
Q

One advantage of metal scaffolding is that:
A) it does not need to be erected level
B) fewer tools are required for erection and disassembly
C) it can be erected inside boiler furnaces
D) it is a good conductor of electricity
E) cross bracing is not required

A

B) fewer tools are required for erection and disassembly

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8
Q

One characteristic of a chain block is that they:
A) do not require lubrication
B) allow objects to be lifted and held in suspension without tying off
C) can be used for lifting but not for lowering
D) only require a small amount of rope
E) allow objects to be raised a great distance

A

B) allow objects to be lifted and held in suspension without tying off

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9
Q 
When joining two ropes of different diameters, use a:
A) sheet bend
B) reef knot
C) figure eight know
D) round turn and three half hitches
E) sheep shank
A

A) sheet bend

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10
Q 
A fastener which is similar to a machine bolt but comes with a variety of head types is a:
A) machine screw
B) set screw
C) stove bolt
D) carriage bolt
E) wood screw
A

A) machine screw

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11
Q 
A knot that can be used to attach a rope to a pipe and pull at 90 degrees is the:
A) bowline
B) clove hitch
C) figure eight knot
D) sheet bend
E) reef knot
A

B) clove hitch

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12
Q

Wire rope should not be lubricated as this makes it difficult to handle:
A) true
B) false

A

B) false

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13
Q

Ropes are measured by:
A) greatest diameter which is usually slightly oversize
B) circumference up to 2.5 cm and diameter over 2.5 cm
C) diameter
D) diameter up to 2.5 cm and circumference over 2.5 cm
E) circumference

A

D) diameter up to 2.5 cm and circumference over 2.5 cm

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14
Q

A wet method of laying up a boiler should not be used when there is a chance that:
A) the boiler could be used as an incinerator during the layup period
B) the boiler may be subjected to pressure
C) the boiler furnace cannot be ventilated
D) scale could be formed on the heating surfaces
E) the boiler could be exposed to freezing temperatures

A

E) the boiler could be exposed to freezing temperatures

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15
Q 
A black light crack detection utilizes ultraviolet light and:
A) a radium solution
B) opaque dye
C) fluorescent penetrant
D) an infrared solution
E) iridescent powder
A

C) fluorescent penetrant

16
Q

All heating boiler controls should be dismantled, cleaned and inspected:
A) at the beginning of the heating season
B) every second year
C) at time of annual boiler maintenance
D) semi annually
E) annually, sometime during the heating season

A

C) at time of annual boiler maintenance

17
Q 
A substance used to absorb humidity inside a boiler during dry layup is:
A) alum
B) sodium sulphite
C) polystyrene resin
D) activated alumina
E) activated gel
A

D) activated alumina

18
Q

The final step in replacing a fire tube is:
A) applying a hydrostatic test
B) a light re expansion
C) filling the boiler with water and checking for leaks
D) annealing the tube ends
E) firing the boiler up to normal working pressure

A

A) applying a hydrostatic test

19
Q

An alkaline boil out is used on boilers to:
A) clean scale that cannot be removed from fire tube boilers by mechanical means
B) neutralize the acid after chemical cleaning
C) remove rust and corrosion products from the water side of the boiler
D) remove oil and grease from the boiler surfaces after construction or modification
E) remove scale formation caused by poor water treatment

A

D) remove oil and grease from the boiler surfaces after construction or modification

20
Q

One of the legal responsibilities of a power engineer during an inspection is:
A) to notify the worker’s compensation board of the inspection
B) to have at least two staff members present at all times
C) to point out to the inspecting power engineer any known or suspected defects
D) to be in possession of an inspection certificate
E) to allow the inspecting power engineer onto the premises, but only during working hours

A

C) to point out to the inspecting power engineer any known or suspected defects

21
Q

An inhibitor, when added to acid, will:
A) prevent the acid from attacking the boiler metal
B) make the acid compatible with the sewer system for disposal
C) improve the acid’s ability to dissolve scale
D) speed up the chemical reaction, thereby shortening the cleaning procedure
E) prevent foaming in the boiler during cleaning

A

A) prevent the acid from attacking the boiler metal

22
Q

When shutting down a hot oil system, the oil is circulated in order to prevent:
A) uneven cooling of oil
B) oil viscosity becoming too low
C) over pressurization of the heater
D) oil deterioration due to thermal cracking
E) hot spots from forming

A

E) hot spots from forming

23
Q

The loss or restriction of flow through the tubes on a hot oil heater can result in:
A) low oil temperatures
B) high steam temperature
C) failure of the tubes and a disastrous fire
D) flame failure
E) low flue gas temperatures

A

C) failure of the tubes and a disastrous fire

24
Q 
One characteristic of radiant type hot oil heaters is:
A) low efficiency
B) the flue gases flow across the tubes
C) rapid warmup of the oil
D) high efficiency
E) high oil temperatures produced
A

A) low efficiency

25
Q

The purpose of the concrete dike around the base of a hot oil heater is:
A) to keep water from collecting under the heater
B) to provide a bed of sand used to retard any fire
C) to contain any oil leaks and direct them away from the heater
D) to provide a source of quench water in the event of a fire
E) to support the vertical columns used to hold up the heater

A

C) to contain any oil leaks and direct them away from the heater

26
Q 
Internal deposits in the tubes of a hot oil heater can be detected by:
A) striking the tubes with a hammer
B) hydrostatic testing
C) ultrasonic examination
D) infrared sensors
E) dye penetrant test
A

A) striking the tubes with a hammer

27
Q 
When the smelt from the floor of the recovery boiler furnace drains through steam jets into a water tank, it forms a solution of:
A) green liquor
B) white liquor
C) caustic soda
D) black liquor
E) soda ash
A

A) green liquor

28
Q 
In a chemical pulping process, the wood is separated into pulp fiber by the action of chemicals and heat in the:
A) screen room
B) machine room
C) chipper
D) digester
E) bleach plant
A

D) digester

29
Q 
The liquor mixed with wood chips in the digester of the Kraft pulping process is called:
A) black liquor
B) brown liquor
C) white liquor
D) green liquor
E) red liquor
A

C) white liquor

30
Q

Ground wood pulp is manufactured by shredding the wood through contact with a rotating grinding wheel.
A) true
B) false

A

A) true

31
Q

In the Kraft pulp process, black liquor is comprised of:
A) soda solids (sodium sulfate and sodium chloride)
B) iron impurities and lignin
C) tannins and sodium sulfate
D) sodium sulfite and lignin
E) sodium lignite (sodium sulfate, sodium carbonate and lignin)

A

E) sodium lignite (sodium sulfate, sodium carbonate and lignin)

32
Q 
In a meat processing plant, the type of refrigeration system normally used is the:
A) open type
B) low pressure type
C) combined type
D) direct type
E) absorption type
A

D) direct type

33
Q 
In an oil refinery, the diesel hydro greater changes the sulphur into:
A) ammonia
B) propane
C) nitrogen sulphite
D) naphtha
E) hydrogen sulphide
A

E) hydrogen sulphide

34
Q 
When drying wood in a sawmill using a kiln, the wood is dried in approximately:
A) 7 days
B) 14 days
C) 21 days
D) 28 days
E) 35 days
A

A) 7 days

35
Q 
In an oil refinery, the naphtha hydrotreater removes:
A) naphtha and water
B) sulphur and nitrogen
C) condensate and light hydrocarbons
D) ammonia and hydrogen
E) kerosene and diesel
A

B) sulphur and nitrogen

Unit Tests (11 decks)

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