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221.

Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is double that of spring 'B'. The stiffness of spring 'A' will be

A.	one-sixteenth	B.	one-eighth
C.	one-fourth	D.	one-half

222.

A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

A.	same	B.	double
C.	half	D.	one-fourth

223.

The rivets are made from ductile material.

Yes

224.

For riveting, the size of hole drilled in plates is

A.	equal to	B.	less than
C.	greater than

225.

For a 25 mm hole drilled in plates, the diameter of rivet shank should be

A.	23 mm	B.	24.5 mm
C.	25 mm	D.	26 mm

226.

The rivets are used for

permanent

temporary

227.

When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as

A.	single riveted lap joint	B.	double riveted lap joint
C.	double riveted single cover butt joint	D.	double riveted double cover butt joint

228.

When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as

single riveted

double riveted

229.

In a riveted joint, when the rivets in the various rows are opposite to each other, the joint is said to be

A.	chain riveted	B.	zig-zag riveted
C.	diamond riveted	D.	none of these

230.

In a riveted joint, when the rivets in the adjacent rows are staggered in such a way that every rivet is in the middle of the two rivets of the opposite row, the joint is said to be diamond riveted.

Yes