Engineering :: Mechanical Measurements

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201.

The thickness of oil film between gage blocks is of the order of

A.	0.2 microinch	B.	0.5 microinch
C.	1 microinch	D.	None of the above

202.

The freezing temperature of mercury is

A.	? 230?C	B.	? 139?C
C.	? 39?C	D.	None of the above

203.

Which of the following transducers is preferred for measurements involving sound

A.	thermocouple	B.	Kundt's tube
C.	peizoelectric pick up	D.	None of the above

204.

Which of the following materials has minimum temperature coefficient of resistance

A.	Constantan	B.	Isoelastic
C.	Nichrome	D.	None of the above

205.

Which of the following instruments is preferred for the measurement of pressure in a steam condenser

A.	Kentometer	B.	McLeod gage
C.	Bourdon tube	D.	None of the above

206.

A simple ac amplifier may be used to amplify dc input through use of an additional circuit component known as

A.	tuned amplifier	B.	carrier
C.	chopper	D.	None of the above

207.

One of more electronic tubes are used in the circuitry of a VTVM for

A.	amplification	B.	rectification
C.	both for amplification and rectification	D.	None of the above

208.

Which of the following is the area meter?

A.	venturimeter	B.	orifice meter
C.	rotameter	D.	None of the above

209.

Spot the odd one out

A.	Vacuum gage	B.	Pirani gage
C.	Strain gage	D.	None of the above

210.

A strain gage material should have low

A.	gage factor	B.	strain sensitivity
C.	resistance temperature coefficient	D.	None of the above