Engineering :: Materials Handling

@ : Home > Mechanical Engineering > Materials Handling

81.

In case of bridge girders

A.	I-sections are used	B.	box-girders are used
C.	any of the above can be used

82.

Electric overhead travelling cranes operate on

A.	dc only	B.	ac only
C.	either ac or dc

83.

In case direct current motors are used for electric overhead cranes, the motors used are generally

A.	series wound	B.	shunt wound
C.	differentially compound wound	D.	cumulatively compound wound

84.

In case ac motors are used on E.O.T. the type of motor used is

A.	synchronous motor	B.	wound roto-induction motor
C.	squirrel case induction motor	D.	Any of the above

85.

Derricks are generally used

A.	in quarries	B.	for construction work
C.	for outdoor works	D.	Any of the above

86.

Pillar cranes are generally used for

A.	light work	B.	infrequent service
C.	either of (A) or (B) above

87.

Which of the following crane is self-propelled?

A.	Locomotive crane	B.	Column jib crane
C.	Derricks	D.	all of the above

88.

Cable ways are generally used in

A.	mining areas for transportation of minerals	B.	sleepers, pipes etc
C.	heavy machinery	D.	None of the above

89.

Practically all power shovels can be converted for operation as

A.	dragline excavators	B.	cranes
C.	both (A) and (B) above	D.	None of the above

90.

Hydraulic dredges are used in

A.	river and harbour work	B.	mining of gold
C.	mining of platinum	D.	mining of tin