141. Many external comparators have anvils or work tables which are grooved. The purpose of this is to
(a) facilitate supporting of work.
(b) provide three point support to the work
(c) not to pass on inaccuracy of surface to the measurement
(d) trap any dirt on the table so that it does not interfere with the measure¬ment
(e) avoid sticking of standards on the table.
142. Straight edges are used to measure
(a) straight length of parts
(b) flatness
(c) parallelism
(d) perpendicularity
(e) circularity.
143. IS : 919 on limits and fits specifies following numbers of grades of fundamental tolerances, and fundamental deviations
respectively
(a) 25, 18
(b) 25, 16
(c) 18, 22
(d) 18, 25
(e) 18, 20.
144. For general use the measuring tip of a comparator should be
(a) flat
(b) spherical
(c) conical
(d) concave
(e) grooved.
145. Basic shaft and basic hole are those whose upper deviations and lower- deviation respectively are
(a) + ve, - ve
(b) - ve, 4- ve
(c) minimum, minimum
(d) minimum, maximum
(e) zero, zero.
146. The standard tolerance unit is equal to
(a) 0.45 (W) + 0.00ID
(b) 0.45 (W) + 0.00 ID
(c) 0.45 (W) + 0.01D
(d) 0.45 (<D) + 0.0W
(e) 0.45 (W).
where D = geometric means of the lower and upper diameters of a particular diameter step.
147. Eden-Rolt comparator is a popular instrument for the
(a) calibration of slip gauges
(b) absolute measurement of length of slip gauges
(c) measurement of flatness
(d) measurement of angles
(e) measurement of linear movement.
148. It is desirable to handle the slip gauges with a cloth or chamois leather in order to
(a) avoid injury to hands
(b) protect the surfaces of slip gauges
(c) insulate them from the heat of die hand
(d) ensure that the varnish applied on gauges does not come out
(e) none of the above.
149. For grade IT 7, value of tolerance is equal to
(a) 7 i
(b) 10 i
(c) 16 i
(d) 25 i
(e) 40 i.
150. For defining lengui die standard generally followed is
(a) bar standard
(b) end standard
(c) light wave standard
(d) any of the above
(e) none of the above.
151. Planer gauge is used for
(a) testing flatness of surface
(b) adding to utility of measurements on surface plate
(c) angular measurement
(d) testing radius of corners
(e) testing thickness of small gaps.
152. IS specifications specify vernier calipers as type A, B and C. This classification is based on
(a) accuracy
(b) least count
(c) range
(d) internal or external measurement and for marking purpose
(e) type of graduations.
153. The cross-section of straight edges upto 180 mm lengui is
(a) rectangular
(b) circular
(c) I-section
(d) elliptical
(e) L-shape.
154. Optical micrometer is used to
(a) measure small linear displacements
(b) measure surface profiles
(c) measure surface roughness
(d) set very small displacement by rotat-ing the glass block through relatively large angles
(e) check parallelism.
155. Airy points of support are
(a) 0.577 L apart
(b) 0.554 L apart
(c) 0.5 L apart
(d) 0.58 L apart
(e) 0.612 L apart
Where L = lengui of bar.
156. The maximum nurnber of faces in precision polygons can be
(a) 6
(b) 8
(c) 12
(d) 20
(e) 72.
157. In precision polygon, a central hole and small holes are drilled uirough die mickness
(a) for mounting purposes
(b) to achieve high accuracy
(c) for ease of manufacture
(d) to make them light
(e) for decoration.
158. Precision polygons are calibrated from first principles using
(a) one autocollimator
(b) two autocollimators
(c) uiree autocollimators
(d) two precision spirit levels
(e) angle gauges.
159. The fact mat how closely the instrument reading follows the measured variables is termed as
(a) fidelity
(b) accuracy
(c) direshold sensitivity
(d) precision
(e) hysteresis.
160. Which of die following methods is not used for testing straightness
(a) spirit level metiiod
(b) autocollimator
(c) interference method
(d) beam comparator
(e) laser beam.
Read More Questions:
Engineering Methodology MCQs Part1
Engineering Methodology MCQs Part2
Engineering Methodology MCQs Part3
Engineering Methodology MCQs Part4
Engineering Methodology MCQs Part5
Engineering Methodology MCQs Part6
Engineering Methodology MCQs Part7
Engineering Methodology MCQs Part8
Engineering Methodology MCQs Part9
(a) facilitate supporting of work.
(b) provide three point support to the work
(c) not to pass on inaccuracy of surface to the measurement
(d) trap any dirt on the table so that it does not interfere with the measure¬ment
(e) avoid sticking of standards on the table.
142. Straight edges are used to measure
(a) straight length of parts
(b) flatness
(c) parallelism
(d) perpendicularity
(e) circularity.
143. IS : 919 on limits and fits specifies following numbers of grades of fundamental tolerances, and fundamental deviations
respectively
(a) 25, 18
(b) 25, 16
(c) 18, 22
(d) 18, 25
(e) 18, 20.
144. For general use the measuring tip of a comparator should be
(a) flat
(b) spherical
(c) conical
(d) concave
(e) grooved.
145. Basic shaft and basic hole are those whose upper deviations and lower- deviation respectively are
(a) + ve, - ve
(b) - ve, 4- ve
(c) minimum, minimum
(d) minimum, maximum
(e) zero, zero.
146. The standard tolerance unit is equal to
(a) 0.45 (W) + 0.00ID
(b) 0.45 (W) + 0.00 ID
(c) 0.45 (W) + 0.01D
(d) 0.45 (<D) + 0.0W
(e) 0.45 (W).
where D = geometric means of the lower and upper diameters of a particular diameter step.
147. Eden-Rolt comparator is a popular instrument for the
(a) calibration of slip gauges
(b) absolute measurement of length of slip gauges
(c) measurement of flatness
(d) measurement of angles
(e) measurement of linear movement.
148. It is desirable to handle the slip gauges with a cloth or chamois leather in order to
(a) avoid injury to hands
(b) protect the surfaces of slip gauges
(c) insulate them from the heat of die hand
(d) ensure that the varnish applied on gauges does not come out
(e) none of the above.
149. For grade IT 7, value of tolerance is equal to
(a) 7 i
(b) 10 i
(c) 16 i
(d) 25 i
(e) 40 i.
150. For defining lengui die standard generally followed is
(a) bar standard
(b) end standard
(c) light wave standard
(d) any of the above
(e) none of the above.
151. Planer gauge is used for
(a) testing flatness of surface
(b) adding to utility of measurements on surface plate
(c) angular measurement
(d) testing radius of corners
(e) testing thickness of small gaps.
152. IS specifications specify vernier calipers as type A, B and C. This classification is based on
(a) accuracy
(b) least count
(c) range
(d) internal or external measurement and for marking purpose
(e) type of graduations.
153. The cross-section of straight edges upto 180 mm lengui is
(a) rectangular
(b) circular
(c) I-section
(d) elliptical
(e) L-shape.
154. Optical micrometer is used to
(a) measure small linear displacements
(b) measure surface profiles
(c) measure surface roughness
(d) set very small displacement by rotat-ing the glass block through relatively large angles
(e) check parallelism.
155. Airy points of support are
(a) 0.577 L apart
(b) 0.554 L apart
(c) 0.5 L apart
(d) 0.58 L apart
(e) 0.612 L apart
Where L = lengui of bar.
156. The maximum nurnber of faces in precision polygons can be
(a) 6
(b) 8
(c) 12
(d) 20
(e) 72.
157. In precision polygon, a central hole and small holes are drilled uirough die mickness
(a) for mounting purposes
(b) to achieve high accuracy
(c) for ease of manufacture
(d) to make them light
(e) for decoration.
158. Precision polygons are calibrated from first principles using
(a) one autocollimator
(b) two autocollimators
(c) uiree autocollimators
(d) two precision spirit levels
(e) angle gauges.
159. The fact mat how closely the instrument reading follows the measured variables is termed as
(a) fidelity
(b) accuracy
(c) direshold sensitivity
(d) precision
(e) hysteresis.
160. Which of die following methods is not used for testing straightness
(a) spirit level metiiod
(b) autocollimator
(c) interference method
(d) beam comparator
(e) laser beam.
Read More Questions:
Engineering Methodology MCQs Part1
Engineering Methodology MCQs Part2
Engineering Methodology MCQs Part3
Engineering Methodology MCQs Part4
Engineering Methodology MCQs Part5
Engineering Methodology MCQs Part6
Engineering Methodology MCQs Part7
Engineering Methodology MCQs Part8
Engineering Methodology MCQs Part9
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