Question Set 187

11. 

The rivet head used for boiler plate riveting is usually

A.

snap head

B.

pan head

C.

counter sunk head

D.

conical head

Answer: Option A

 

12. 

A single strap butt joint is always in __________ shear.

A.

single

B.

double

Answer: Option A

 

13. 

18/8 steel contains

A.

18% nickel and 8% chromium

B.

18% chromium and 8% nickel

C.

18% nickel and 8% vanadium

D.

18% vanadium and 8% nickel

Answer: Option B

 

14. 

The module in the reciprocal of diametral pitch.

A.

Yes

B.

No

Answer: Option A

 

15. 

The velocity factor for carefully cut gears operating at velocities upto __________ is equal to 4.5/4.5 + v.

A.

10 m/s

B.

12.5 m/s

C.

15 m/s

D.

20 m/s

Answer: Option B

 

16. 

A localised compressive stress at the area of contact between two members is known as

A.

tensile stress

B.

bending stress

C.

bearing stress

D.

shear stress

Answer: Option C

 

17. 

The metal suitable for bearings subjected to heavy loads is

A.

silicon bronze

B.

white metal

C.

monel metal

D.

phosphor bronze

Answer: Option B

 

18. 

The V-belts are particularly suitable for __________ drives.

A.

short

B.

long

Answer: Option A

 

19. 

For hardening alloy steels and high speed steels, they are heated to

A.

500 to 600°C

B.

700 to 900°C

C.

1100 to 1300°C

D.

1300 to 1500°C

Answer: Option C

 

20. 

An universal coupling is used to connect two shafts

A.

which are perfectly aligned

B.

which are not in exact alignment

C.

have lateral misalignment

D.

whose axes intersect at a small angle

Answer: Option D