A basic shaft is one whose Upper deviation is zero
Upper Deviation: It is the algebraic difference between the maximum size and the basic size. The upper deviation of a hole is represented by a symbol ES and of a shaft, it is represented by es.
Lower Deviation: It is the algebraic difference between the minimum size and the basic size.
6) A basic shaft is one whose
Answer is:
upper deviation is zero
Explanation:
ISRO Draughtsman-B Mechanical Question Paper - 2015 (Set -1) with Answer Key
For more MCQ's Click HereRelated ISRO Draughtsman-B Mechanical Question Paper - 2015 (Set -1) with Answer Key
Answer is:
Lapping
Explanation:
Lapping is a machining process in which two surfaces are rubbed together with an abrasive between them, by hand movement or using a machine. Lapping process gives best surface finish.
Answer is:
24 square centimeter
Explanation:
Area of a triangle having side 6cm, 8cm and 10 cm is 24 square centimeter
Answer is:
Control shape and position
Explanation:
Geometric tolerance is provided to control shape and position
Answer is:
18.84
Explanation:
Circular Pitch Circular pitch is the distance measured along the circumference of the pitch circle from a point on one tooth to a corresponding point on the adjacent tooth. It is denoted by p.
Circular Pitch = p = (PixD)/T
where
Pi = 3.141
Pitch Circle Diameter = D = 240 mm
Number of Gear teeth = T = 40
= (3.141x240)/40
p=18.84
