Millwright Mix 2

Question 1

What is done prior to working on the main bearings Of a stationary diesel engine?

Answer 1

Ensure the engine cannot rotate

Question 2

When mounting ball bearings with tapered bores up to 4”, when is the lock nut correctly set?

Answer 2

When there is a slight drag on the bearing

Question 3

Which sequence is followed when repairing a prime mover?

Answer 3

Clean, matchmark, disassemble and check parts

Question 4

What are the steps to install a new screw on a screw conveyor?

Answer 4

Position new screw and replace thrust bearing on end opposite of material flow

Question 5

A conveyor has been repaired and is ready to be restarted, why would the conveyor not energize ?

Answer 5

Emergency pull cord is tripped

Question 6

A conveyor belt has been replaced, in what condition is the conveyor belt for final tracking?

Answer 6

Under full load

Question 7

How is tear in a heavy duty belt repaired?

Answer 7

Drill holes in belt and Install plate Fasteners

Question 8

An enclosed impeller pump is producing an extensively high discharge head. What is done?

Answer 8

Trim the impeller

Question 9

When pumping water under pressure, how is leakage in the packing controlled?

Answer 9

Tighten bolts evenly until packing has slight leakage

Question 10

When installing a pneumatic conveyor, which type of fan is used to move fibrous materials?

Answer 10

Open face

Question 11

Discharge volume from a pump is reduced from normal output and an inspection reveals that the outlet from the tank is partially plugged. What is done to resolve this?

Answer 11

Replace agitator

Question 12

Which component is adjusted to correct misalignment on a conveyor system?

Answer 12

The tail pulley

Question 13

A tank is not filling to the present volume. What is the problem?

Answer 13

Broken baffle

Question 14

Steel plates are 1/2” x 14’ x 8’ what is the weight of 35 sheets? ( One ft³ of Steel weighs 490 lbs)

Answer 14

22867 lbs

Question 15

What is the working load of the sling arrangement if each sling has a working load rating of 3000 pounds? Straight and at 45°

Answer 15

Straight- 6000lbs
45°- 1500 lbs

Question 16

What is used to lift a 20’ turbine rotor weighting 100 tons?

Answer 16

Spreader bar

Question 17

When connecting a motor to a pump what is done before coupling the pump to the motor?

Answer 17

Supply power and jog motor to ensure proper direction of rotation

Question 18

An electric motor on a belt conveyor system is overheating and indicating high amperage draw what is the cause?

Answer 18

Overloaded system

Question 19

Stationary diesel engine is overheating on a hot day, what is the cause?

Answer 19

Damaged radiator fins

Question 20

During startup a plane bearing overheats upon inspection excessive damage is found on the bearing what is the cause?

Answer 20

The lubricant wedge has not been established

Question 21

What Is done to reduce the formation of gum and sludge in an internal combustion engine ?

Answer 21

Use a higher detergent oil

Question 22

What are the key considerations when storing lubricants for lifting equipment in a cabinet?

Answer 22

Cool, ventilated area and fireproof

Question 23

In what state should a hydraulic Jack be prior to being stored?

Answer 23

Fully retracted, pressure released and de-energized

Question 24

One section of the belt runs out of line at all points along the system. What is one possible cause?

Answer 24

Belt improperly spliced