MD Day 1

Question 1

Relief angles of single-point cutting test in cutting mild steel, cast iron and other average work as recommend should be in the ranges of _ degrees for high speed tools

A. 8 to 12
B. 10 to 15
C. 5 to 7
D. 12 to 16

Answer 1

A. 8 to 12

Question 2

Tap not used for cutting threads
A.tapping tap
B. Bottoming tap
C. Plugging tap
D. taper tip

Answer 2

The answer is: A Tapping tap

Question 3

One of the following materials is not mentioned for wire rope pulley/sheave applications.
A. Plastic
B. Iron
C. Paper
D. Copper Alloy

Answer 3

A. Plastic

Question 4

All terms and abbreviations deal with wire rope arrangement except this _ which deals with wire rope material strength.
A. preformed
B:IWRC
C. MPs
D. lang lay

Answer 4

The answer is: C

Question 5

Mirror finish has surfaces fineness of __ rms.
A. 1
B. 2 to 8
C. 1 to 3
D. 2 to 5

Answer 5

A. 1

Question 6

Chromium steel (to include heat and corrosion resistant) designation.
A. SAE 56xx
B. SAE514xx
C. SAE61xx
D. SAE9xxx

Answer 6

B. SAE514xx

Question 7

Non-metallic material for high melting temperature being used as furnace lining.
A. quartz bricks
B. refractories
C. Silica Sand
D. dolomite clay bricks

Answer 7

The answer is: B

Question 8

For economical cost in the manufacturing large worm gears the following materials are usually applied.
A. bronze rim with cast steel spider
B. cast iron rim with bronze spider
C. cast steel rim with brass spider
D. alloyed aluminum rim with cast iron spider

Answer 8

The answer is: A

Question 9

In greater quantity, this element is harmful to the molten ferrous metal.
A. silicon
B.aluminum
C. oxides
D. sulfur

Answer 9

The answer is: D

Question 10

_ thread is used where the thread requires great strength and usually cut square on one side and slantingon the other side.
A. Janno
B. Buttress
C. Square
D. double

Answer 10

The answer is: B

Question 11

Internal stress exerted by the fibers to resist the action of outside force is called_
A. shearing stress
B. tensile Stress
C. ultimate Stress
D.compressive stress

Answer 11

The answer is: A. shearing stress

Question 12

Alloy steel axle under repeated load/ stress will eventually fail if the load/stress is above the endurance for the steel under consideration. The endurance limit of the steel is therefore:
A. equal to the allowable stress at the module of elasticity
B. equal to half the ultimate strength
C. equal to the module of elasticity
D equal to 80% of the elastic

Answer 12

The answer is: B. equal to half the ultimate strength