Machine Design - Practice Test

(A) A tapered key with head at one end

(B) Fitted in pairs at right angles

(C) Capable of tilting in a recess milled out in the shaft

(D) All of the above

(C) Capable of tilting in a recess milled out in the shaft

(A) Similar to small size tap bolts except that a greater variety of shapes of heads are available

(B) Slotted for a screw driver and generally used with a nut

(C) Used to prevent relative motion between two parts

(D) Similar to stud

(B) Slotted for a screw driver and generally used with a nut

(A) Low starting and low running friction except at very high speeds

(B) Accuracy of shaft alignment

(C) Small overall dimensions

(D) All of the above

(C) Small overall dimensions

(A) Metric

(B) Buttress

(C) Square

(D) NPT (national pipe threads).

(D) NPT (national pipe threads).

(A) $$frac{{{ ext{WD}}}}{{pi {{ ext{d}}^3}}} imes { ext{K}}$$

(B) $$frac{{2{ ext{WD}}}}{{pi {{ ext{d}}^3}}} imes { ext{K}}$$

(C) $$frac{{4{ ext{WD}}}}{{pi {{ ext{d}}^3}}} imes { ext{K}}$$

(D) $$frac{{8{ ext{WD}}}}{{pi {{ ext{d}}^3}}} imes { ext{K}}$$

(D) $$frac{{8{ ext{WD}}}}{{pi {{ ext{d}}^3}}} imes { ext{K}}$$

Machine Design - Study Mode