Explore topic-wise MCQs in Casting.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.

1.

Magnetic field lines travel from north to south.

A. True
B. False
Answer» B. False
Discussion
2.

Half wave DC is more penetrative in magnaflux testing than full wave DC.

A. True
B. False
Answer» B. False
Discussion
3.

HALF_WAVE_DC_IS_MORE_PENETRATIVE_IN_MAGNAFLUX_TESTING_THAN_FULL_WAVE_DC.?$

A. True
B. False
Answer» B. False
Discussion
4.

Magnetic_field_lines_travel_from_north_to_south.$

A. True
B. False
Answer» B. False
Discussion
5.

What is the size range of dry particle powder?

A. 5 to 170 micrometers
B. 15 to 185 micrometers
C. 45 to 215 micrometers
D. 65 to 250 micrometers
Answer» B. 15 to 185 micrometers
Discussion
6.

What is the skin depth of copper at 60 Hz frequency?

A. 8 mm
B. 8.5 mm
C. 9 mm
D. 9.5 mm
Answer» C. 9 mm
Discussion
7.

Magnetic particles with fluorescent coating are seen under which light?

A. White light
B. Infrared light
C. Black light
D. Ultraviolet light
Answer» E.
Discussion
8.

Which current is helpful in detecting surface breaking indication?

A. High frequency AC
B. Low frequency AC
C. Full wave DC
D. Half wave DC
Answer» E.
Discussion
9.

Which current is helpful in detecting sub surface discontinuities?

A. High frequency AC
B. Low frequency AC
C. Full wave DC
D. Half wave DC
Answer» D. Half wave DC
Discussion
10.

Which of the following materials can be tested using magnetic particle testing?

A. Brass
B. Steel
C. Bronze
D. Solder
Answer» C. Bronze
Discussion
11.

When an AC current is used for magnaflux test, what is its frequency?

A. 35 cycles/sec
B. 45 cycles/sec
C. 55 cycles/sec
D. 65 cycles/sec
Answer» D. 65 cycles/sec
Discussion
12.

Which of the following defects are not detected by magnetic particle inspection?

A. Surface cracks
B. Quenching cracks
C. Thermal cracks
D. Fatigue cracks
Answer» B. Quenching cracks
Discussion