Comp 8
Comprehensive Mechanical Engineering Quiz
Test your knowledge and skills in mechanical engineering with our challenging quiz! This quiz includes a range of questions on various topics, including file types, hydraulic systems, machining processes, and more. It's perfect for students, professionals, or anyone interested in the field.
Key Features:
- 68 multiple choice and checkbox questions
- Covers essential mechanical engineering concepts
- Engaging format to enhance your learning experience
Which of the following types of files would produce a fine finish when draw filling
Double cut
Mill cut
Bastard
Second cut
Copper gaskets are usually annealed by heating to red hot cherry and should be?
Cooled slowly in are
Quenched slowly with oil
Doused with cold water
Drawn by temper quickly
This method is used for joining sheet metal and for attaching studs, rods and,.etc.. To plates____.
Acetylene welding
Bond fusion
Resistance welding
Current friction
Which compoud gauge measures pressure indicated on both high and low on outside pressure?
Flow pressure
Latent pressure
Absolute
Atmospheric pressure
Tubing is sized by:
Allowed working pressure
Nominal inside diameter
Nominal outside diameter
Cross-section are
Which of the following propeller materials will not requires stress relief treatment after minor repair, straightening of tips or the thinning of the blades edges?
Nickel aluminum bronze
Manganese bronze
Manganese nickel
Nickel manganese bronze
What procedure must be formed before doing any maintenance on a hydraulic system,i,e.. There is still stored eneryg in the accumulator?
Disconenect the pump pressure control switch
Bleed off the energy stored in the accumulator
Operate the machine until its reaches normal temperature
Pressurize the system to test the leaks
If the drill point lips are ground at different angles, the drill will?
Cut an oversized hole
Curved and eventually break into pieces
Not cut a perfect hole
Overheat rapidly from rubbing
A pump shaft that is bent or distorted should normally_______.?
Repaired by a suitable welding process
Reconditioned by metallizing and machining
Repalced with satisfactory spare
Straightened by applying heat and torsion
What ,machine which can flatter surface on horizontal, vertical or angular plane?
Shaper machine
Power saw
Lathe machine
Drilling machine
What should you do when using a chisel with a mushroom head?
Knock off the ragged edges with a hammer
Remove the ragged edges by grinding
Do not strike the mushroomed portion
Use only light hammer blows with chisel
Diesel engine piston ring ends can be machined in different shapees, the step-cut ring end offers the advantage of:
Having the list amount of ring expansion
A decreased possibility of ring seizure
Best control of ring tension
A decreased break-in period
What should you avoid increased pressure on a drill as the drill point begins to break through the bottom of the work piece?
Use a gauge to check the temperature
Do not heat external part to be mated
Check the weight of the mating parts
Determine the exerted pressure by watching the pressure gauge
To repair a small electrical motor that has been submerged in salt water you should__.
Wash it with fresh water and apply an external source of heat
Send it ashore to approve service facility
Rinse all electrical parts with carbon teterachloride cleaning solvent and then blow dry the motor with compressed air
Renew the winding
An O-ring seal in a hydraulic system will begin to leak when it has lost its interference fit due to___.
High fluid flow
Low fluid temperature
Compression set or wear
Low fluid pressure
Which one of the following types are always mill files
Single cut
Second cut
Double cut
Swiss patterned
Which of the following hand taps are recommended in cutting internal threads on a blind hole>?
Plug and bottoming
Pilot and bottoming
Pilot and plug
Pilot and intermediate
Used to reduce cargo pump leakage to the pump room bilge of a tanker ship is the___.
Flinger rings
Centrifugal pump
Mechanical seals
Clippers seals
What is commonly used by a machinist and repairman in fixing files with coarsely teeth?
Bastard cut
Smooth cut
Second cut
Dead smooth cut
Which of the files listed will have coarsely spaced teeth?
Ddead smooth cut
Second cut
Bastard cut
Smooth cut
Knowing the construction and the operating action of the milling machine will lessen the chance of the machine from being?
Cleaned frequently
Used frequently
Damaged seriously
Damaged frequently
What do you call the operation of machining a uniformly roughened or checked surface on round stock in lathe?
Swaging
Checker
Crosshatching
Knurling
Which of the following characteristics is true relative to meshing with corrosion protection oils, as the resultant mixture?
The gear of larger diameter will rotate at a slower RPM
Both gears will rotate with the same RPM
Both gears will operate in the same direction
The smaller gear will rotate slower thant the gear with larger diameter
Which of the listed devices could be used as a ring groove cleaning tool during preparation for the installation of the new rings if a piston ring cleaning tool was not available?
A case hardened scraper
Steel brush
Fine emery cloth or steel wool
A section of the removed compression ring
When it necessary to open a refrigeration system for repairs and the system will be open for mote that a few minutes, the open ends of the system should be?
Plugged
Purged
Dehydrated
Evacuated
When drilling blind holes with standard drill press, the proper method of stopping the progress of the drill boring through the work is by____.
Adjusting the spindle return spring
Gaging chuck motion
Moving the working table
Using a depth stop
Which of the following metal materials has the lowest cutting speed for an effective rough cutting operation if a high-speed cutter is to be used in the modern milling machine onboard?
Bronze
Carbon steel
Milleable iron
Brass
A hard brittle substance that are insoluble in water is called?
Polyvinyl chloride
Carbon fiber
Plastic steel
Resin
When using center lathe, why should you short sleeves or close fitting sleeves be worn?
To avoid displacing loose equipment on the lathe saddle
To avoid sleeves being snagged on gear change levers
To prevent sleeves being caught up on work piece or chuck
To prevent sleeves being caught on tool post
Which file listed is commonly referred to as a "rat-tail" file?
Small half round
Small round
Small triangular
Small flat
Which of the following sensing device in a pressure gauge using the bourdon principle?
Metal tube
Corrugated cylinder
Diaphragm
Differential pressure cell
What is the primary use of a soft-faced hammer or mallet?
For driving/ removing nails
For striking a surface without causing damage
For removing scales, weld slug,.etc.. From metal surfaces
For producing heavy blows
Small leaks in gaskets should be stopped immediately after installation because___?
Leak will probably worsen in time
Small leaks cause the pipeline to creep
The leak will result in sever flange distortion
The gasket may not seal itself for several hours
Which of the following kind of metal is ductile and maleable that can be corroded by air or water?
Zinc
Tin
Alluminum
Bronze
Which of the following chisels should be used for cutting oil grooves ?
Inside corners
Slot or keyways
Half-round grooves
Round nose
Heat damage to fuel injection nozzle on small high-speed diesel engine can be prevented by__?
Employing fuel oil as a cooling medium
Ensuring good metallic contact between nozzles and cylinder heads
Avoiding fuel oil temperature exceeding builders specification
Preventing hard carbon deposit on nozzle tips
A crack, located in the shell plating or deck plating of a ship, may be temporarily weld repair from increasing in length by.
Installing welded brackets across both ends
Drilling a hole at each of the crack and weld
Cutting a square notch at each end of the crack
V-grooving and welding from both side of the crack
Sealing lines provide sealing liquid flow to the stuffing box of a centrifugal pump?
To prevent seawater from passing out the stuffing box when a high suction head is present
In place of lantern ring
In place of mechanical seal
To cool the shaft
What operation is used in smoothing and squaring the surface of a round hole?
Counter boring operation
Tapping operation
Counter sinking operation
Spot facing operation
Which non-ferous alloy is most commonly used for heat exchanger tubes and possesses a high resistance to corrosion?
Aircraft aluminum
Copper nicker
Bronze
Monel
To repair or replace defective diesel engine high pressure fuel pipe it must be of the same length and diameter as the original piping____.
Avoid unnecessary waste of time in installation
Maintain specified injection characteristics
Use existing supports and braces
Conform with company policy
The blade for a power hacksaw should be installed with the teeth:
Pointing toward the motor end of the machine
Pointing toward the motor if using a 4 or/n6 tooth blade and away from the motor if using a 10 or 14 tooth blade
Pointing away from the motor end of the machine
Pointing either toward or away form the motor end of the machine
What kind of non-metallic mineral material which can witstand very high temperature and unaffected by steam petrol paraffin,fuel, oil and lubricants?
Polyvinylchloride
Asbestos
Lignum vitae
Polytetraflourethylene
Hacksaw cutting is more effective when pressure is applied on the?
Front of the hacksaw frame
Foreward stroke
Handle of the hacksaw frame
Whole length of the hacksaw frame
What operation can be done during external cleaning of boiler tubes in order to prevent the accumulation of carbon deposits?
Sootblowing
Dry cleaning with brush
Blow with compressed air
Waterwashing
If you suspect that a gage is sticking and giving an inaccurate reading you should__?
Remove the gage bezel and slightly move the needle
Tap the gage body with awrench
Blow out the gage line with compressed air
Replace the gage or have it calibrated
What fitting is ideal for connecting pipes with big diameters of equal length?
Union
Nipples
Standard coupling
Flange
The gasket and the broken studs have been replaced on a tank manhole cover.Which of the following method is satisfactory for testing the repair ?
Pressurize the tank with 10 Psig air, soap the repaired are, watch for visible signs of leakage or bubbles
Host test the repaired area with minimum of 100 psig water pressure
Fill the tank with water via the ballast pump until innage reading corresponds to the maximum depth of the tank
Fill the tank via the ballast pump until water flows from the vent line opening on deck
What do you call a lathe dog fitted with a headless set screw?
Common lathe dog
Standard lathe dog
Safety lathe dog
Clamp lathe dog
When repacking a stuffing box fitted with a lantern ring, which of the following precautions should be observed ?
Block off the sealing water connection
Replace all the packing rings
Be certain that all packing is fitted loosely to be shaft
For good lubrication apply a fine grade lapping compound between the shaft and packing
When drilling hole in a piece of work chuked in a lathe, where does you should mount the drill chuck?
Tailstock
Cross feed
Headstock
Compound test
How do you call a welding process with the work in the positive pole and the electrode in the negative pole ?
Reverse polarity welding circuit
Inert-arcwelding circuit
Shielded-arc welding circuit
Straight polarity welding circuit
What is this kind of metal which is light, strong and corrosion-resistant used as the plate material in plate type heat exchanger?
Bronze
Vanaduim
Stainless
Titanium
Which feature of a centrifugal pump reduce the need for renewing worn impellers and pump casing?
Replaceable impeller and casing wearing rings
Low rotational speed of impeller
Removable end plate
Close radial clearance
What is known as a welding done with a shielded or unshielded carbon or metal electrode
Forging
Gas welding
Arc welding
Electrode soldering
When drilling hole in a piece of work chunked in a lathe you should mount the drill chunk in the?
Compound rest
Tailstock
Headstock
Crossfeed
Why must a close fitting buttoned up overall be worn using lathe?
To avoid medallions getting caught on the work piece
To prevent sleeve being caught
To avoid catching on the tool post
To prevent metallic chipsflying inside the overall
Which of the following indicator is used to determine the hardness of a grease?
Penetration number
Drop point
Pour point
Stability-consistency number
What is the term rough, coarse, bastard, second cut smooth and dead smooth refer to ?
Distance between the parallel cuts on the file
Size of the file
Parts of the file
Shape of the file
Tapping threads into a blind hole should be finished by using a:
Short tap
Plug tap
Taper tap
Bottoming tap
The lower water seal on a diesel engine wet cylinder line must allow for liner expansion and contraction. This seal is most commonly a_____.
Soft copper gasket
Flexible metallic seal ring
Precision ground flange joint
Neoprene O-ring
When using a hand held hacksaw the correct maximum rate of speed for cutting should be:
10 to 20 strokes per minute
40 to 50 strokes per minute
80 to 100 strokes per minute
70 to 80 strokes per minute
When copper plates are use for making gaskets, it is usually annealed by heating red cheery color, what is the complete process?
Drawing its temper quikly
Cooling slowly in air
Dousing with cold water
Quencing slowy in oil
In general practice, which one makes common measurement on circular and curved surfaces in machine shops?
Round
Linear
Spherical
Curved
Which of the following process of annealing copper plates that are used for gaskets?
By heating cherry red hot and drawing its temper quikly
By heating cherry red hot and quenching slowly with oil
By heating cherry red hot and dousing with cold water quickly
By heating cherry red hot and cooling slowly in air
{"name":"Comp 8", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Test your knowledge and skills in mechanical engineering with our challenging quiz! This quiz includes a range of questions on various topics, including file types, hydraulic systems, machining processes, and more. It's perfect for students, professionals, or anyone interested in the field.Key Features:68 multiple choice and checkbox questionsCovers essential mechanical engineering conceptsEngaging format to enhance your learning experience","img":"https:/images/course1.png"}