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401.

Dibasic acid esters have

A.	horizontal viscosity-temperature curves	B.	low film strength
C.	fast evaporation at low temperatures	D.	do not wet the metal surface

402.

Gas lubricated bearings are used for

A.	very low rpm and high load applications	B.	very low rpm and low load applications
C.	very high rpm and low load applications	D.	very high rpm and high load applications

403.

Cast iron bearings are used

A.	for under water applications	B.	when space is the major consideration
C.	when cost is the major consideration	D.	for reciprocating and oscillating motions only

404.

Sintered bearing

A.	are used for under water applications	B.	high rpm applications
C.	are self-lubricating type suitable for placs where regular maintensance is difficult	D.	find application is instruments

405.

Fine scratches assist in librication in

A.	thin film lubrication	B.	thick film lubrication
C.	both (A) and (B) above	D.	none of the above

406.

Smooth bearing surface is an essential pre-requisite in case of

A.	thin-film lubrication	B.	thick film lubrication
C.	both film (A) and (B) above	D.	none of the above

407.

Scraping of lathe bed helps in

A.	reducing friction	B.	increasing friction
C.	lubrication	D.	firm grip between parts

408.

IC engine cylinders are lubricated by

A.	thin film lubricated	B.	thick film lubrication
C.	either of (A) and (B) above	D.	none of the above

409.

As viscosity of lubricating oil decreases, bearing load capacity

A.	increases linearly	B.	increases exponentially
C.	decreases

410.

Jaw clutches

A.	cause shock loads when engaging	B.	get disengaged at high rpm
C.	get disengaged in reverse direction	D.	are friction clutches which generate heat when enegaged